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  • 11:35 Popular Real Gases: Crash Course Chemistry #14

    Real Gases: Crash Course Chemistry #14

    807 views / 0 likes - added

    Hank bursts our ideal gas law bubble, er, balloon, and brings us back to reality, explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected for volume because atoms

  • 11:45 Popular Ideal Gas Problems: Crash Course Chemistry #13

    Ideal Gas Problems: Crash Course Chemistry #13

    1,207 views / 0 likes - added

    We don't live in a perfect world, and neither do gases - it would be great if their particles always fulfilled the assumptions of the ideal gas law, and we could use PV=nRT to get the right answer every time. Unfortunately, the ideal gas law (like our cul

  • 10:43 Popular How To Speak Chemistrian: Crash Course Chemistry #11

    How To Speak Chemistrian: Crash Course Chemistry #11

    919 views / 0 likes - added

    Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native. Table of Contents Determining Formulas and Names of Monatom

  • 11:13 Popular Redox Reactions: Crash Course Chemistry #10

    Redox Reactions: Crash Course Chemistry #10

    1,449 views / 0 likes - added

    All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from atom to atom, they c

  • 12:47 Popular Stoichiometry: Chemistry for Massive Creatures - Crash Course Chemistry #6

    Stoichiometry: Chemistry for Massive Creatures - Crash Course Chemistry #6

    1,080 views / 0 likes - added

    Chemists need stoichiometry to make the scale of chemistry more understandable - Hank is here to explain why, and to teach us how to use it. Table of Contents Atomic Mass Units 2:24 Moles 5:12 Molar Mass 5:59 Equation Balancing 8:45 Molar Ratios 11:11 Cra

  • 11:22 Popular The Periodic Table: Crash Course Chemistry #4

    The Periodic Table: Crash Course Chemistry #4

    1,598 views / 1 likes - added

    Hank gives us a tour of the most important table ever, including the life story of the obsessive man who championed it, Dmitri Mendeleev. The periodic table of elements is a concise, information-dense catalog of all of the different sorts of atoms in the

  • 10:59 Popular The Creation of Chemistry - The Fundamental Laws: Crash Course Chemistry #3

    The Creation of Chemistry - The Fundamental Laws: Crash Course Chemistry #3

    979 views / 0 likes - added

    Today's Crash Course Chemistry takes a historical perspective on the creation of the science, which didn't really exist until a super-smart, super-wealthy Frenchman put the puzzle pieces together - Hank tells the story of how we went from alchemists to ch

  • 11:24 Popular Unit Conversion&Significant Figures: Crash Course Chemistry #2

    Unit Conversion&Significant Figures: Crash Course Chemistry #2

    1,037 views / 0 likes - added

    A unit is the frequently arbitrary designation we have given to something to convey a definite magnitude of a physical quantity and every quantity can be expressed in terms of the seven base units that are contained in the international system of units. H

  • 10:41 Popular Aggression V. Altruism: Crash Course Psychology #40

    Aggression V. Altruism: Crash Course Psychology #40

    1,054 views / 0 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 10:08 Popular Social Influence: Crash Course Psychology #38

    Social Influence: Crash Course Psychology #38

    1,615 views / 0 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 10:00 Popular Depressive and Bipolar Disorders: Crash Course Psychology #30

    Depressive and Bipolar Disorders: Crash Course Psychology #30

    959 views / 2 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 09:50 Popular The Growth of Knowledge: Crash Course Psychology #18

    The Growth of Knowledge: Crash Course Psychology #18

    1,573 views / 0 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 11:20 Popular The Power of Motivation: Crash Course Psychology #17

    The Power of Motivation: Crash Course Psychology #17

    1,751 views / 0 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 10:46 Popular Sensation&Perception - Crash Course Psychology #5

    Sensation&Perception - Crash Course Psychology #5

    1,081 views / 0 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 12:34 Popular Meet Your Master: Getting to Know Your Brain - Crash Course Psychology #4

    Meet Your Master: Getting to Know Your Brain - Crash Course Psychology #4

    1,226 views / 0 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 10:14 Popular The Chemical Mind - Crash Course Psychology #3

    The Chemical Mind - Crash Course Psychology #3

    1,256 views / 0 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 10:51 Popular Psychological Research - Crash Course Psychology #2

    Psychological Research - Crash Course Psychology #2

    1,155 views / 1 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 13:33 Popular Japan in the Heian Period and Cultural History: Crash Course World History 227

    Japan in the Heian Period and Cultural History: Crash Course World History 227

    1,740 views / 9 likes - added

    In which John Green teaches you about what westerners call the middle ages and the lives of the aristocracy...in Japan. The Heian period in Japan lasted from 794CE to 1185CE, and it was an interesting time in Japan. Rather than being known for a thriving

  • 13:41 Popular Iran's Revolutions: Crash Course World History 226

    Iran's Revolutions: Crash Course World History 226

    1,348 views / 0 likes - added

    In which John Green teaches you about Iran's Revolutions. Yes, revolutions plural. What was the1979 Iranian Revolution about? It turns out, Iran has a pretty long history of unrest in order to put power in the hands of the people, and the most recent revo

  • 12:14 Popular War and Nation Building in Latin America: Crash Course World History 225

    War and Nation Building in Latin America: Crash Course World History 225

    1,407 views / 0 likes - added

    In which John Green teaches you about nation building and nationalism in Latin America. Sometimes, the nations of Latin America get compared to the nations of Europe, and are found wanting. This is kind of a silly comparison. The rise of democratic, econo

  • 11:09 Popular Water and Classical Civilizations: Crash Course World History 222

    Water and Classical Civilizations: Crash Course World History 222

    942 views / 1 likes - added

    In which John Green teaches you about water! So, we talk about resources a lot on Crash Course, and today is no exception. It turns out people can't live without water, which means it's absolutely necessary for civilization. Today John talks about water i

  • 12:58 Popular Congo and Africa's World War: Crash Course World History 221

    Congo and Africa's World War: Crash Course World History 221

    1,164 views / 2 likes - added

    In which John Green teaches you about the Democratic Republic of the Congo, which used to be Zaire, which used to be The Belgian Congo, which used to be the Congo Free State, which used to be the region surrounding the Congo River Basin in central Africa.

  • 11:02 Popular World War II, A War for Resources: Crash Course World History #220

    World War II, A War for Resources: Crash Course World History #220

    2,294 views / 13 likes - added

    In which John Green teaches you about World War II, and some of the causes behind the war. In a lot of ways, WWII was about resources, and especially about food. The expansionist aggression of both Germany and Japan were in a lot of ways about resources.

  • 15:05 Popular The Evolutionary Epic: Crash Course Big History #5

    The Evolutionary Epic: Crash Course Big History #5

    1,272 views / 0 likes - added

    In which John Green, Hank Green, and Emily Graslie teach you about evolution. So, in the last 3.8 billion years, life on Earth has evolved from single-celled prokaryotes to the dizzying array of life we have today. So how did all this happen? We'll talk a

  • 14:33 Popular The Sun&The Earth: Crash Course Big History #3

    The Sun&The Earth: Crash Course Big History #3

    1,470 views / 2 likes - added

    In which John Green, Hank Green, and Emily Graslie teach you about our Sun, and the formation of the planets. We're going to focus on the formation and development of the Earth, because that's where people live. You'll learn about the Solar nebula, the bi

  • 14:37 Popular Exploring the Universe: Crash Course Big History #2

    Exploring the Universe: Crash Course Big History #2

    995 views / 0 likes - added

    In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen and helium turned into stars, formed galaxies, created heavy

  • 08:49 Popular Autonomic Nervous System: Crash Course A&P #13

    Autonomic Nervous System: Crash Course A&P #13

    1,987 views / 1 likes - added

    Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical differences - where ner

  • 10:02 Popular Peripheral Nervous System: Crash Course A&P #12

    Peripheral Nervous System: Crash Course A&P #12

    1,821 views / 2 likes - added

    It is now time to meet the system that helps your crazy brain stay in touch with the outside world. We follow up last week's tour of the central nervous system with a look at your peripheral nervous system, its afferent and efferent divisions, how it proc

  • 10:08 Popular Central Nervous System: Crash Course A&P #11

    Central Nervous System: Crash Course A&P #11

    1,512 views / 1 likes - added

    Today Hank talks about your central nervous system. In this episode we'll explore how your brain develops and how important location is for each of your brain's many functions. Table of Contents Central Nervous System, Location and Brain Function 1:48 Bra

  • 10:57 Popular The Nervous System, Part 3 - Synapses!: Crash Course A&P #10

    The Nervous System, Part 3 - Synapses!: Crash Course A&P #10

    1,740 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: NerdFighteria FROM: Dave at DTXC.CO Cycling t-shirts at DTXC.CO. Don't give up the Road! DFTBA! *** Subbable Co-Sponsors: Logan Sanders https://www.facebook.com/perrylogans Dr. Boyev http://youtube.com/taichiknees *** You can di

  • 11:44 Popular The Nervous System, Part 2 - Action! Potential!: Crash Course A&P #9

    The Nervous System, Part 2 - Action! Potential!: Crash Course A&P #9

    1,436 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Carla FROM: Christopher Next stop is whenever. Just be like, "stop." *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if

  • 10:36 Popular The Nervous System, Part 1: Crash Course A&P #8

    The Nervous System, Part 1: Crash Course A&P #8

    1,461 views / 2 likes - added

    •••SUBBABLE MESSAGE••• TO: Kerry FROM: Cale I love you with all my ha-art. Deadset. *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can aff

  • 09:57 Popular The Integumentary System, Part 2 - Skin Deeper: Crash Course A&P #7

    The Integumentary System, Part 2 - Skin Deeper: Crash Course A&P #7

    1,019 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Helle Søndergaard FROM: Martin Søndergaard Congratulations for finishing first semester on physiotherapy! I'm so proud! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as

  • 09:40 Popular The Integumentary System, Part 1 - Skin Deep: Crash Course A&P #6

    The Integumentary System, Part 1 - Skin Deep: Crash Course A&P #6

    1,169 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Ciaran FROM: your sister Jillian Happy birthday! Hope you enjoy being immortalized via doobly-doo! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with ev

  • 09:43 Popular Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P #5

    Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P #5

    2,008 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: the world. FROM: Laura Love Rathbun Learning is the best thing to do with your you! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're

  • 10:29 Popular Tissues, Part 3 - Connective Tissues: Crash Course A&P #4

    Tissues, Part 3 - Connective Tissues: Crash Course A&P #4

    1,623 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Ashley FROM: Fee Happy birthday nerd also I love you lots and lots *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if y

  • 10:16 Popular Tissues, Part 2 - Epithelial Tissue: Crash Course A&P #3

    Tissues, Part 2 - Epithelial Tissue: Crash Course A&P #3

    1,864 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO : Phoebe and James McMullan FROM : Dad Continue being awesome Phoebe&James from John&Hank! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything

  • 10:43 Popular Tissues, Part 1: Crash Course A&P #2

    Tissues, Part 1: Crash Course A&P #2

    1,160 views / 0 likes - added

    •••SUBBABLE MESSAGE••• TO: Jordan Schoonover FROM: Mom, Dad&Madison Happy Birthday Jordan! We love you sweetheart!! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything w

  • 11:21 Popular Introduction to Anatomy&Physiology: Crash Course A&P #1

    Introduction to Anatomy&Physiology: Crash Course A&P #1

    1,122 views / 0 likes - added

    You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

  • 09:51 Popular The Moon: Astronomy #12

    The Moon: Astronomy #12

    1,176 views / 1 likes - added

    Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation. This episode is brought to you by Squarespace: http://www.squarespace.com/crashcourse -- Table of Contents Many Millio

  • 10:17 Popular Introduction to the Solar System: Crash Course Astronomy #9

    Introduction to the Solar System: Crash Course Astronomy #9

    1,324 views / 1 likes - added

    In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today. This episode is sponsored by Squaresp

  • 09:47 Popular Tides: Crash Course Astronomy #8

    Tides: Crash Course Astronomy #8

    1,453 views / 1 likes - added

    Today Phil explores the world of tides! What is the relationship between tides and gravity? How do planets and their moons become tidally locked? What would happen if you were 300km tall? Important questions. -- Gravity Over Distance 0:44 Tidal Force Para

  • 10:03 Popular The Gravity of the Situation: Crash Course Astronomy #7

    The Gravity of the Situation: Crash Course Astronomy #7

    1,123 views / 0 likes - added

    In today's episode, Phil looks at how gravity plays out across the universe. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse -- Gravity is a Force 2:17 Different Types of Orbit 3:41 Escape Velocity 5:30 Weightless Mass 7:0

  • 12:01 Popular Telescopes: Crash Course Astronomy #6

    Telescopes: Crash Course Astronomy #6

    906 views / 0 likes - added

    Today Phil explains how telescopes work and offers up some astronomical shopping advice. -- How Telescopes Work 1:07 Refractors vs Reflectors 2:50 Technology and the Light Spectrum 7:45 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow P

  • 10:32 Popular Eclipses: Crash Course Astronomy #5

    Eclipses: Crash Course Astronomy #5

    1,121 views / 1 likes - added

    The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse -- As promised, Phil's sun spotting recommendations: Astronome

  • 09:46 Popular Moon Phases: Crash Course Astronomy #4

    Moon Phases: Crash Course Astronomy #4

    2,484 views / 6 likes - added

    In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases. -- Why the Moon Has Phases 0:36.1 Spheres in Orbit 1:05.4 Name of the Moon Phases 2:25.5 How We See It 7:48.2 -- PBS Digital Studios: http://youtube

  • 09:29 Popular Cycles in the Sky: Crash Course Astronomy #3

    Cycles in the Sky: Crash Course Astronomy #3

    878 views / 0 likes - added

    This week we build on our naked eye observations from last week and take a look at the cyclical phenomena that we can see at work in the universe. -- Table of Contents: Naked Eye Observations 0:28.4 Constellations 3:09.7 The Color of Stars 2:44.5 View of

  • 11:17 Popular Naked Eye Observations: Crash Course Astronomy #2

    Naked Eye Observations: Crash Course Astronomy #2

    972 views / 0 likes - added

    Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye. -- Table of Contents: Naked Eye Observations 0:28.4 Constellations 3:09.7 The Color of Stars 2:44.5 View of the

  • 12:12 Popular Introduction to Astronomy: Crash Course Astronomy #1

    Introduction to Astronomy: Crash Course Astronomy #1

    993 views / 3 likes - added

    Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?" -- Table of Contents: What is Astronomy? 3:00 Who Studie

  • 08:31 Popular Separation of Powers and Checks and Balances: Crash Course Government and Politics #3

    Separation of Powers and Checks and Balances: Crash Course Government and Politics #3

    2,042 views / 2 likes - added

    In which Craig Benzine teaches you about the US Governments Separation of powers and the system of checks and balances. In theory, the Legislative Branch, the Executive Branch, and the Judicial Brach are designed to keep each other in check, and to keep a

  • 09:05 Popular The Bicameral Congress: Crash Course Government and Politics #2

    The Bicameral Congress: Crash Course Government and Politics #2

    962 views / 0 likes - added

    In which Craig Benzine teaches you about the United States Congress, and why it's bicameral, and what bicameral means. Craig tells you what the Senate and House of Representatives are for, some of the history of the institutions, and reveal to you just ho

  • 08:39 Popular Test 3 Section 2 Part 5

    Test 3 Section 2 Part 5

    795 views / 0 likes - added

    Problems 18-20 on starting on page 522

  • 12:49 Parabolic Mirrors 2

    Parabolic Mirrors 2

    690 views / 0 likes - added

    Parabolic Mirrors 2 More free lessons at: http://www.khanacademy.org/video?v=7m0u6dxA5Xo

  • 11:25 Popular Snell's Law Example 2

    Snell's Law Example 2

    724 views / 0 likes - added

    Snell's Law Example 2 More free lessons at: http://www.khanacademy.org/video?v=10LuSfZZa3E

  • 07:42 Specular and Diffuse Reflection 2

    Specular and Diffuse Reflection 2

    599 views / 0 likes - added

    Specular and Diffuse Reflection 2 More free lessons at: http://www.khanacademy.org/video?v=XR52dXLyz-M

  • 11:01 Magnetism 8

    Magnetism 8

    694 views / 0 likes - added

    More on the forces exerted by 2 current carrying wires on each other. More free lessons at: http://www.khanacademy.org/video?v=4tctB1wZNiI

  • 10:39 Magnetism 4

    Magnetism 4

    678 views / 0 likes - added

    Part 2 of the proton through a magnetic field problem More free lessons at: http://www.khanacademy.org/video?v=b1QFKLZC11U

  • 10:48 Popular Magnetism 3

    Magnetism 3

    792 views / 0 likes - added

    Whats happens when a speeding proton goes through a magnetic field More free lessons at: http://www.khanacademy.org/video?v=LTuGQy4rmmo

  • 08:59 Popular Magnetism 2

    Magnetism 2

    792 views / 0 likes - added

    Magnetic fields and their effects on moving electrical charges More free lessons at: http://www.khanacademy.org/video?v=NnlAI4ZiUrQ

  • 10:53 Popular Cross Product 2

    Cross Product 2

    713 views / 0 likes - added

    A little more intuition on the cross product. More free lessons at: http://www.khanacademy.org/video?v=o_puKe_lTKk

  • 12:21 Circuits (part 3)

    Circuits (part 3)

    654 views / 0 likes - added

    Resistors in parallel More free lessons at: http://www.khanacademy.org/video?v=ZrMw7P6P2Gw

  • 11:08 Circuits (part 2)

    Circuits (part 2)

    596 views / 0 likes - added

    Resistors in series More free lessons at: http://www.khanacademy.org/video?v=7vHh1sfZ5KE

  • 09:51 Popular Electric Potential Energy (part 2-- involves calculus)

    Electric Potential Energy (part 2-- involves calculus)

    843 views / 0 likes - added

    Electric potential energy difference in a varying field More free lessons at: http://www.khanacademy.org/video?v=CqsYCIjSm9A

  • 11:29 Popular Proof (Advanced): Field from infinite plate (part 2)

    Proof (Advanced): Field from infinite plate (part 2)

    1,207 views / 1 likes - added

    We see that the infinite, uniformly charged plate generates a constant electric field (independent of the height above the plate) More free lessons at: http://www.khanacademy.org/video?v=TxwE4_dXo8s

  • 13:33 Electrostatics (part 2)

    Electrostatics (part 2)

    642 views / 0 likes - added

    Electric Fields More free lessons at: http://www.khanacademy.org/video?v=0YOGrTNgGhE

  • 10:25 Thermodynamics (part 3)

    Thermodynamics (part 3)

    597 views / 0 likes - added

    Introduction to Kelvin. Example of a problem involving the ideal gas law More free lessons at: http://www.khanacademy.org/video?v=HvYUKRMT0VI

  • 10:18 Thermodynamics (part 2)

    Thermodynamics (part 2)

    577 views / 0 likes - added

    Example problem that pv=pv. Introduction to temperature. More free lessons at: http://www.khanacademy.org/video?v=x34OTtDE5q8

  • 09:55 Fluids (part 3)

    Fluids (part 3)

    611 views / 0 likes - added

    Pressure in a fluid at depth More free lessons at: http://www.khanacademy.org/video?v=5EWjlpc0S00

  • 10:13 Fluids (part 2)

    Fluids (part 2)

    589 views / 0 likes - added

    Pressure and Pascal's Principal. More free lessons at: http://www.khanacademy.org/video?v=lWDtFHDVqqk

  • 09:44 Popular Harmonic Motion Part 3 (no calculus)

    Harmonic Motion Part 3 (no calculus)

    776 views / 0 likes - added

    Figuring out the period, frequency, and amplitude of the harmonic motion of a mass attached to a spring. More free lessons at: http://www.khanacademy.org/video?v=oqBHBO8cqLI

  • 09:46 Popular Harmonic Motion Part 2 (calculus)

    Harmonic Motion Part 2 (calculus)

    777 views / 0 likes - added

    We test whether Acos(wt) can describe the motion of the mass on a spring by substituting into the differential equation F=-kx More free lessons at: http://www.khanacademy.org/video?v=xoUppFlif04

  • 08:17 Gravitation (part 2)

    Gravitation (part 2)

    600 views / 0 likes - added

    A little bit more on gravity More free lessons at: http://www.khanacademy.org/video?v=8i0j3j16yFk

  • 04:48 Popular Loop De Loop Answer part 2

    Loop De Loop Answer part 2

    906 views / 0 likes - added

    Figuring out the car's average speed while completing the loop de loop More free lessons at: http://www.khanacademy.org/video?v=zcnnZz2pCSg

  • 14:22 Popular Calculus proof of centripetal acceleration formula

    Calculus proof of centripetal acceleration formula

    884 views / 0 likes - added

    Proving that a = v^2/r More free lessons at: http://www.khanacademy.org/video?v=XjCEumlJBno

  • 09:13 Popular Unit Vector Notation (part 2)

    Unit Vector Notation (part 2)

    2,041 views / 0 likes - added

    More on unit vector notation. Showing that adding the x and y components of two vectors is equivalent to adding the vectors visually using the head-to-tail method More free lessons at: http://www.khanacademy.org/video?v=595Tiga1gIg

  • 13:50 Moments (part 2)

    Moments (part 2)

    623 views / 0 likes - added

    2 more moment problems. More free lessons at: http://www.khanacademy.org/video?v=peXbz0frV74

  • 10:35 Mechanical Advantage (part 3)

    Mechanical Advantage (part 3)

    675 views / 0 likes - added

    Introduction to pulleys and wedges More free lessons at: http://www.khanacademy.org/video?v=vSsK7Rfa3yA

  • 06:50 Popular Mechanical Advantage (part 2)

    Mechanical Advantage (part 2)

    763 views / 0 likes - added

    More on mechanical advantage, levers and moments. More free lessons at: http://www.khanacademy.org/video?v=DiBXxWBrV24

  • 09:52 Popular Work and Energy (part 2)

    Work and Energy (part 2)

    852 views / 1 likes - added

    More on work. Introduction to Kinetic and Potential Energies. More free lessons at: http://www.khanacademy.org/video?v=3mier94pbnU

  • 09:33 Popular 2-dimensional momentum problem (part 2)

    2-dimensional momentum problem (part 2)

    811 views / 0 likes - added

    We finish the 2-dimensional momentum problem More free lessons at: http://www.khanacademy.org/video?v=leudxqivIJI

  • 10:36 2-dimensional momentum problem

    2-dimensional momentum problem

    686 views / 0 likes - added

    An example of conservation of momentum in two dimensions. More free lessons at: http://www.khanacademy.org/video?v=CFygKiTB-4A

  • 10:19 Tension (part 2)

    Tension (part 2)

    624 views / 0 likes - added

    A slightly more difficult tension problem. More free lessons at: http://www.khanacademy.org/video?v=zwDJ1wVr7Is

  • 02:39 Popular Optimal angle for a projectile part 3 - Horizontal distance as a function of angle (and speed)

    Optimal angle for a projectile part 3 - Horizontal distance as a function of angle (and speed)

    1,459 views / 0 likes - added

    Horizontal distance as a function of angle (and speed) More free lessons at: http://www.khanacademy.org/video?v=-h_x8TwC1ik

  • 04:12 Popular Optimal angle for a projectile part 2 - Hangtime

    Optimal angle for a projectile part 2 - Hangtime

    780 views / 0 likes - added

    Optimal angle for a projectile part 2 - Hangtime More free lessons at: http://www.khanacademy.org/video?v=XtAB9GOfLiM

  • 12:54 Popular Visualizing Vectors in 2 Dimensions

    Visualizing Vectors in 2 Dimensions

    776 views / 0 likes - added

    Visualizing, adding and breaking down vectors in 2 dimensions More free lessons at: http://www.khanacademy.org/video?v=xp6ibuI8UuQ

  • 13:17 Popular Birthday Probability Problem

    Birthday Probability Problem

    1,106 views / 0 likes - added

    The probability that at least 2 people in a room of 30 share the same birthday. More free lessons at: http://www.khanacademy.org/video?v=9G0w61pZPig

  • 10:36 Popular Probability and Combinations (part 2)

    Probability and Combinations (part 2)

    860 views / 0 likes - added

    Making at least 3 out of 5 free throws. More free lessons at: http://www.khanacademy.org/video?v=W7DmsJKLoxc

  • 09:10 Popular Probability using Combinations

    Probability using Combinations

    994 views / 0 likes - added

    Probability of getting exactly 3 heads in 8 flips of a fair coin. More free lessons at: http://www.khanacademy.org/video?v=Xqfcy1rqMbI

  • 06:34 Popular Dependent Probability Example 2

    Dependent Probability Example 2

    986 views / 0 likes - added

    Another example of dependent probability More free lessons at: http://www.khanacademy.org/video?v=7BkcNLOf56w

  • 10:06 Popular Probability (part 3)

    Probability (part 3)

    885 views / 0 likes - added

    More on probability. More free lessons at: http://www.khanacademy.org/video?v=wBDOCvHYckE

  • 09:54 Popular Probability (part 2)

    Probability (part 2)

    838 views / 0 likes - added

    Let's flip a coin. More free lessons at: http://www.khanacademy.org/video?v=6E_NVnboMB8

  • 06:52 Popular Exactly Three Heads in Five Flips

    Exactly Three Heads in Five Flips

    886 views / 0 likes - added

    Probability of exactly 3 heads in 5 flips using combinations More free lessons at: http://www.khanacademy.org/video?v=udG9KhNMKJw

  • 10:00 Popular Getting Exactly Two Heads (Combinatorics)

    Getting Exactly Two Heads (Combinatorics)

    873 views / 0 likes - added

    A different way to think about the probability of getting 2 heads in 4 flips More free lessons at: http://www.khanacademy.org/video?v=8TIben0bJpU

  • 12:16 Popular Singapore Math:  Grade 3a Unit 2 (part 11)

    Singapore Math: Grade 3a Unit 2 (part 11)

    724 views / 0 likes - added

    Some 2-step word problems.

  • 11:31 Popular Singapore Math: Grade 3a Unit 2 (part 10)

    Singapore Math: Grade 3a Unit 2 (part 10)

    742 views / 0 likes - added

    Some final 4 digit subtraction problems.

  • 13:07 Singapore Math: Grade 3a Unit 2 (part 9)

    Singapore Math: Grade 3a Unit 2 (part 9)

    666 views / 0 likes - added

    More on subtracting 4-digit numbers

  • 15:02 Singapore Math: Grade 3a Unit 2 (part 8)

    Singapore Math: Grade 3a Unit 2 (part 8)

    627 views / 0 likes - added

    Subtracting 4-digit numbers

  • 12:13 Singapore Math: Grade 3a Unit 2 (part 7)

    Singapore Math: Grade 3a Unit 2 (part 7)

    656 views / 0 likes - added

    Even more adding of 4-digit numbers

  • 13:54 Singapore Math: Grade 3a Unit 2 (part 6)

    Singapore Math: Grade 3a Unit 2 (part 6)

    600 views / 0 likes - added

    More adding of 4 digit numbers

  • 14:18 Singapore Math: Grade 3a Unit 2 (part 5)

    Singapore Math: Grade 3a Unit 2 (part 5)

    664 views / 0 likes - added

    Adding 4 digit numbers

  • 13:04 Singapore Math: Grade 3a Unit 2 (part 4)

    Singapore Math: Grade 3a Unit 2 (part 4)

    617 views / 0 likes - added

    Some more word problems

  • 09:57 Singapore Math: Grade 3a Unit 2 (part 3)

    Singapore Math: Grade 3a Unit 2 (part 3)

    646 views / 0 likes - added

    A man selling balloons at a carnival.

  • 13:07 Popular Singapore Math: Grade 3a Unit 2 (part 2)

    Singapore Math: Grade 3a Unit 2 (part 2)

    737 views / 0 likes - added

    Word problem with cookies

  • 14:26 Popular Singapore Math: Grade 3a Unit 2 (part 1)

    Singapore Math: Grade 3a Unit 2 (part 1)

    817 views / 0 likes - added

    The sum of and difference between 2 numbers.

  • 13:18 Popular Singapore Math: Grade 3a, Unit 1 (part 3)

    Singapore Math: Grade 3a, Unit 1 (part 3)

    859 views / 0 likes - added

    Objectives: Read and write numbers less than 10,000. Relate each digit in a 4-digit number to its place value. Compare and order numbers within 10,000.

  • 15:11 Singapore Math: Grade 3a Unit 1 (part 2)

    Singapore Math: Grade 3a Unit 1 (part 2)

    694 views / 0 likes - added

    Objectives: Read and write numbers less than 10,000. Relate each digit in a 4-digit number to its place value.

  • 14:34 Popular Linear Algebra:  Finding Eigenvectors and Eigenspaces example

    Linear Algebra: Finding Eigenvectors and Eigenspaces example

    1,012 views / 0 likes - added

    Finding the eigenvectors and eigenspaces of a 2x2 matrix More free lessons at: http://www.khanacademy.org/video?v=3-xfmbdzkqc

  • 13:57 Popular Linear Algebra:  Gram-Schmidt example with 3 basis vectors

    Linear Algebra: Gram-Schmidt example with 3 basis vectors

    1,018 views / 0 likes - added

    Gram-Schmidt example with 3 basis vectors More free lessons at: http://www.khanacademy.org/video?v=ZRRG386v6DI

  • 12:36 Popular Lin Alg: Alternate Basis Tranformation Matrix Example Part 2

    Lin Alg: Alternate Basis Tranformation Matrix Example Part 2

    1,204 views / 0 likes - added

    Showing that the transformation matrix with respect to basis B actually works. Brief point on why someone would want to operate in a different basis to begin with. More free lessons at: http://www.khanacademy.org/video?v=EyORbCPUAd4

  • 16:55 Popular Linear Algebra: Determinant when row is added

    Linear Algebra: Determinant when row is added

    1,211 views / 0 likes - added

    The determinant when one matrix has a row that is the sum of the rows of other matrices (and every other term is identical in the 3 matrices) More free lessons at: http://www.khanacademy.org/video?v=VrB3LaSD_uo

  • 16:31 Popular Compositions of Linear Transformations 2

    Compositions of Linear Transformations 2

    873 views / 0 likes - added

    Providing the motivation for definition of matrix products More free lessons at: http://www.khanacademy.org/video?v=BuqcKpe5ZQs

  • 11:35 Popular Null Space 3: Relation to Linear Independence

    Null Space 3: Relation to Linear Independence

    929 views / 0 likes - added

    Understanding how the null space of a matrix relates to the linear independence of its column vectors More free lessons at: http://www.khanacademy.org/video?v=vFctYRhK2M0

  • 13:08 Popular Null Space 2: Calculating the null space of a matrix

    Null Space 2: Calculating the null space of a matrix

    965 views / 0 likes - added

    Calculating the null space of a matrix More free lessons at: http://www.khanacademy.org/video?v=qvyboGryeA8

  • 12:08 Popular Matrices: Reduced Row Echelon Form 3

    Matrices: Reduced Row Echelon Form 3

    1,014 views / 0 likes - added

    And another example of solving a system of linear equations by putting an augmented matrix into reduced row echelon form More free lessons at: http://www.khanacademy.org/video?v=JVDrlTdzxiI

  • 07:37 Popular Matrices: Reduced Row Echelon Form 2

    Matrices: Reduced Row Echelon Form 2

    1,003 views / 0 likes - added

    Another example of solving a system of linear equations by putting an augmented matrix into reduced row echelon form More free lessons at: http://www.khanacademy.org/video?v=lP1DGtZ8Wys

  • 16:53 Popular Span and Linear Independence Example

    Span and Linear Independence Example

    793 views / 0 likes - added

    Determining whether 3 vectors are linearly independent and/or span R3 More free lessons at: http://www.khanacademy.org/video?v=9kW6zFK5E5c

  • 15:26 Popular Solving 3 Equations with 3 Unknowns

    Solving 3 Equations with 3 Unknowns

    865 views / 0 likes - added

    Solving 3 equations with 3 unknowns (old video from July 2008)

  • 08:02 Popular 3-variable linear equations (part 1)

    3-variable linear equations (part 1)

    978 views / 0 likes - added

    Visual intuition of a 3-variable linear equation.

  • 14:20 Popular Matrices to solve a vector combination problem

    Matrices to solve a vector combination problem

    848 views / 0 likes - added

    Using matrices to figure out if some combination of 2 vectors can create a 3rd vector More free lessons at: http://www.khanacademy.org/video?v=gsNgdVdAT1o

  • 13:36 Popular Inverting Matrices (part 3)

    Inverting Matrices (part 3)

    982 views / 0 likes - added

    Using Gauss-Jordan elimination to invert a 3x3 matrix. More free lessons at: http://www.khanacademy.org/video?v=obts_JDS6_Q

  • 16:45 Popular Inverting matrices (part 2)

    Inverting matrices (part 2)

    735 views / 0 likes - added

    Inverting a 3x3 matrix More free lessons at: http://www.khanacademy.org/video?v=S4n-tQZnU6o

  • 14:37 Popular Matrix multiplication (part 2)

    Matrix multiplication (part 2)

    773 views / 0 likes - added

    More on multiplying matrices.

  • 10:46 Popular Laplace Transform solves an equation 2

    Laplace Transform solves an equation 2

    818 views / 0 likes - added

    Second part of using the Laplace Transform to solve a differential equation. More free lessons at: http://www.khanacademy.org/video?v=EdQ7Q9VoF44

  • 09:14 Popular Laplace Transform 4

    Laplace Transform 4

    794 views / 0 likes - added

    Part 2 of getting the Laplace transform of sin(at) More free lessons at: http://www.khanacademy.org/video?v=-cApVwKR1Ps

  • 10:45 Popular Laplace Transform 3 (L{sin(at)})

    Laplace Transform 3 (L{sin(at)})

    871 views / 0 likes - added

    Laplace Transform of sin(at) (part 1) More free lessons at: http://www.khanacademy.org/video?v=gMcs6RF_LrQ

  • 07:35 Popular Laplace Transform 2

    Laplace Transform 2

    807 views / 0 likes - added

    Laplace transform of e^at More free lessons at: http://www.khanacademy.org/video?v=33TYoybjqPg

  • 08:10 Popular Undetermined Coefficients 3

    Undetermined Coefficients 3

    755 views / 0 likes - added

    Another example where the nonhomogeneous part is a polynomial More free lessons at: http://www.khanacademy.org/video?v=I3vIAzMcm4Y

  • 11:01 Popular Undetermined Coefficients 2

    Undetermined Coefficients 2

    706 views / 0 likes - added

    Another example using undetermined coefficients. More free lessons at: http://www.khanacademy.org/video?v=hbJ2o9EUmJ0

  • 08:52 Popular Repeated roots of the characterisitic equations part 2

    Repeated roots of the characterisitic equations part 2

    830 views / 0 likes - added

    An example where we use initial conditions to solve a repeated-roots differential equation. More free lessons at: http://www.khanacademy.org/video?v=YezsgIlcb68

  • 10:12 Popular Complex roots of the characteristic equations 3

    Complex roots of the characteristic equations 3

    808 views / 0 likes - added

    Lets do an example with initial conditions! More free lessons at: http://www.khanacademy.org/video?v=rGaM6pwqhB0

  • 10:24 Popular Complex roots of the characteristic equations 2

    Complex roots of the characteristic equations 2

    896 views / 0 likes - added

    What happens when the characteristic equation has complex roots? More free lessons at: http://www.khanacademy.org/video?v=jJyRrIZ595c

  • 05:59 Popular 2nd Order Linear Homogeneous Differential Equations 3

    2nd Order Linear Homogeneous Differential Equations 3

    832 views / 1 likes - added

    Let's use some initial conditions to solve for the particular solution More free lessons at: http://www.khanacademy.org/video?v=UyCwAFQt4v0

  • 08:28 Popular 2nd Order Linear Homogeneous Differential Equations 2

    2nd Order Linear Homogeneous Differential Equations 2

    863 views / 0 likes - added

    Let's find the general solution! More free lessons at: http://www.khanacademy.org/video?v=SPVqgkOZMAc

  • 08:23 Popular First order homogenous equations 2

    First order homogenous equations 2

    805 views / 0 likes - added

    Another example of using substitution to solve a first order homogeneous differential equations. More free lessons at: http://www.khanacademy.org/video?v=6YRGEsQWZzY

  • 08:26 Popular Integrating factors 2

    Integrating factors 2

    702 views / 0 likes - added

    Now that we've made the equation exact, let's solve it! More free lessons at: http://www.khanacademy.org/video?v=0NyeDUhKwBE

  • 09:59 Popular Exact Equations Example 3

    Exact Equations Example 3

    768 views / 0 likes - added

    One more exact equation example More free lessons at: http://www.khanacademy.org/video?v=eu_GFuU7tLI

  • 08:01 Popular Exact Equations Example 2

    Exact Equations Example 2

    791 views / 0 likes - added

    Some more exact equation examples More free lessons at: http://www.khanacademy.org/video?v=utQi1ZhF__Q

  • 10:51 Popular Exact Equations Intuition 2 (proofy)

    Exact Equations Intuition 2 (proofy)

    813 views / 0 likes - added

    More intuitive building blocks for exact equations. More free lessons at: http://www.khanacademy.org/video?v=a7wYAtMjORQ

  • 05:38 Popular Separable differential equations 2

    Separable differential equations 2

    834 views / 0 likes - added

    Another separable differential equation example. More free lessons at: http://www.khanacademy.org/video?v=xVWCfMe97ws

  • 10:40 Wealth Destruction 2

    Wealth Destruction 2

    688 views / 0 likes - added

    How bubbles destroy wealth. More free lessons at: http://www.khanacademy.org/video?v=eRImmzuExyg

  • 12:04 Popular Credit Default Swaps 2

    Credit Default Swaps 2

    724 views / 0 likes - added

    Systemic risks of credit default swaps. Financial weapons of mass destruction. More free lessons at: http://www.khanacademy.org/video?v=neAFEvNsiqw

  • 09:49 Popular Housing Price Conundrum (part 3)

    Housing Price Conundrum (part 3)

    736 views / 0 likes - added

    Why did lending standards become more and more lax from 2000 to 2006? More free lessons at: http://www.khanacademy.org/video?v=aAfMps_VyOY

  • 08:55 Popular Housing price conundrum (part 2)

    Housing price conundrum (part 2)

    847 views / 0 likes - added

    How lower lending standards led to housing price inflation. More free lessons at: http://www.khanacademy.org/video?v=wYAhlTHIBT4

  • 21:28 Popular FRB Commentary 3: Big Picture

    FRB Commentary 3: Big Picture

    829 views / 0 likes - added

    Summary of thoughts in last two videos. Discussion of why Fractional Reserve Banking is a subsidy to banks and allows them to arbitrage the yield curve. More free lessons at: http://www.khanacademy.org/video?v=8SAMey9Gl5I

  • 17:20 Popular FRB Commentary 2: Deposit Insurance

    FRB Commentary 2: Deposit Insurance

    803 views / 0 likes - added

    More on the weaknesses of fractional reserve banking. The FDIC and deposit insurance and its side effects. More free lessons at: http://www.khanacademy.org/video?v=otstXFxMkl4

  • 11:48 Popular Banking 3: Fractional Reserve Banking

    Banking 3: Fractional Reserve Banking

    958 views / 0 likes - added

    Fractional reserve banking and the multiplier effect. Introduction to the money supply. More free lessons at: http://www.khanacademy.org/video?v=nH2-37rTA8U

  • 11:59 Popular Banking 2: A bank's income statement

    Banking 2: A bank's income statement

    878 views / 0 likes - added

    Introduction to the income statement of a bank (and to income statements in general). More free lessons at: http://www.khanacademy.org/video?v=h3lMANILkw0

  • 10:33 Popular Bailout 3: Book value vs. market value

    Bailout 3: Book value vs. market value

    891 views / 0 likes - added

    What it means when the market value of a stock is different from its book value. More free lessons at: http://www.khanacademy.org/video?v=TUOQZjotyAQ

  • 10:52 Popular Bailout 2: Book Value

    Bailout 2: Book Value

    850 views / 0 likes - added

    Hypothetical bank balance sheet. What book value means. More free lessons at: http://www.khanacademy.org/video?v=YJBqGM29_64

  • 10:14 Popular ANOVA 3 -Hypothesis Test with F-Statistic

    ANOVA 3 -Hypothesis Test with F-Statistic

    948 views / 0 likes - added

    Analysis of Variance 3 -Hypothesis Test with F-Statistic More free lessons at: http://www.khanacademy.org/video?v=Xg8_iSkJpAE

  • 13:20 Popular ANOVA 2 - Calculating SSW and SSB (Total Sum of Squares Within and Between).avi

    ANOVA 2 - Calculating SSW and SSB (Total Sum of Squares Within and Between).avi

    1,077 views / 0 likes - added

    Analysis of Variance 2 - Calculating SSW and SSB (Total Sum of Squares Within and Between).avi More free lessons at: http://www.khanacademy.org/video?v=j9ZPMlVHJVs

  • 09:54 Popular Proof Part 2 Minimizing Squared Error to Line

    Proof Part 2 Minimizing Squared Error to Line

    985 views / 0 likes - added

    Proof Part 2 Minimizing Squared Error to Line More free lessons at: http://www.khanacademy.org/video?v=f6OnoxctvUk

  • 10:54 Popular Proof (Part 3) Minimizing Squared Error to Regression Line

    Proof (Part 3) Minimizing Squared Error to Regression Line

    976 views / 0 likes - added

    Proof (Part 3) Minimizing Squared Error to Regression Line More free lessons at: http://www.khanacademy.org/video?v=u1HhUB3NP8g

  • 10:01 Popular Comparing Population Proportions 2

    Comparing Population Proportions 2

    902 views / 0 likes - added

    Comparing Population Proportions 2 More free lessons at: http://www.khanacademy.org/video?v=MNbat1lrJW4

  • 10:05 Popular Margin of Error 2

    Margin of Error 2

    711 views / 0 likes - added

    Finding the 95% confidence interval for the proportion of a population voting for a candidate. More free lessons at: http://www.khanacademy.org/video?v=YclQE2XtaLw

  • 13:20 Popular Sampling Distribution of the Sample Mean 2

    Sampling Distribution of the Sample Mean 2

    852 views / 0 likes - added

    More on the Central Limit Theorem and the Sampling Distribution of the Sample Mean More free lessons at: http://www.khanacademy.org/video?v=NYd6wzYkQIM

  • 12:42 Popular Poisson Process 2

    Poisson Process 2

    703 views / 0 likes - added

    More of the derivation of the Poisson Distribution. More free lessons at: http://www.khanacademy.org/video?v=Jkr4FSrNEVY

  • 13:27 Popular Binomial Distribution 3

    Binomial Distribution 3

    831 views / 0 likes - added

    Basketball binomial distribution More free lessons at: http://www.khanacademy.org/video?v=vKNpQ_KTXvE

  • 11:05 Popular Binomial Distribution 2

    Binomial Distribution 2

    750 views / 0 likes - added

    More on the binomial distribution More free lessons at: http://www.khanacademy.org/video?v=FI8xtVaI068

  • 12:25 Popular Geithner Plan 2.5

    Geithner Plan 2.5

    730 views / 0 likes - added

    More exotic ways that a bank could buy transfer exposure to the taxpayer. More free lessons at: http://www.khanacademy.org/video?v=0FxRYePmogU

  • 09:38 Popular Unemployment Rate Primer

    Unemployment Rate Primer

    741 views / 0 likes - added

    Understanding how the headline unemployment rate (U-3) is calculated More free lessons at: http://www.khanacademy.org/video?v=9DGbDx5xQNo

  • 13:21 Popular Inflation&Deflation 3: Obama Stimulus Plan

    Inflation&Deflation 3: Obama Stimulus Plan

    794 views / 0 likes - added

    Is the stimulus large enough to offset the demand shock caused by the contraction in credit? Will it lead to inflation? More free lessons at: http://www.khanacademy.org/video?v=sZRkERfzzn4

  • 11:50 Inflation, Deflation&Capacity Utilization 2

    Inflation, Deflation&Capacity Utilization 2

    622 views / 0 likes - added

    More on inflation and capacity utilization More free lessons at: http://www.khanacademy.org/video?v=cugQ4z4cJF8

  • 12:59 Popular Cupcake Economics 3

    Cupcake Economics 3

    799 views / 0 likes - added

    Using our spreadsheet to show why prices decrease when utilization is low and prices increase when utilization is high. More free lessons at: http://www.khanacademy.org/video?v=8x1-TeDxblU

  • 11:38 Popular Cupcake Economics 2

    Cupcake Economics 2

    741 views / 0 likes - added

    More analysis of the cupcake business. More free lessons at: http://www.khanacademy.org/video?v=-LTXzYXaAuk

  • 12:16 Popular 3-D Path Counting Brain Teaser

    3-D Path Counting Brain Teaser

    929 views / 0 likes - added

    Extending the path counting to three dimensions More free lessons at: http://www.khanacademy.org/video?v=wRxzDOloS3o

  • 10:17 ROA Discussion 2

    ROA Discussion 2

    440 views / 0 likes - added

    More on the return on asset discussion. More free lessons at: http://www.khanacademy.org/video?v=R_5slDeVCQk

  • 10:34 Molecular and Empirical Forumlas from Percent Composition

    Molecular and Empirical Forumlas from Percent Composition

    686 views / 0 likes - added

    Molecular and Empirical Forumlas from Percent Composition. Example 2.9 from Kotz Chemistry book More free lessons at: http://www.khanacademy.org/video?v=_H009sTvYE0

  • 18:53 Popular Stoichiometry Example Problem 2

    Stoichiometry Example Problem 2

    737 views / 0 likes - added

    Stoichiometry Example Problem 2 More free lessons at: http://www.khanacademy.org/video?v=eQf_EAYGo-k

  • 12:17 Carnot Efficiency 3:  Proving that it is the most efficient

    Carnot Efficiency 3: Proving that it is the most efficient

    668 views / 0 likes - added

    Proving that a Carnot Engine is the most efficient engine More free lessons at: http://www.khanacademy.org/video?v=LUoUb4hGMH8

  • 14:01 Carnot Efficiency 2:  Reversing the Cycle

    Carnot Efficiency 2: Reversing the Cycle

    684 views / 0 likes - added

    Seeing how we can scale and or reverse a Carnot Engine (to make a refrigerator) More free lessons at: http://www.khanacademy.org/video?v=pQWwP7YYH6o

  • 16:56 Popular Proof: U=(3/2)PV or U=(3/2)nRT

    Proof: U=(3/2)PV or U=(3/2)nRT

    1,138 views / 0 likes - added

    Conceptual proof that the internal energy of an ideal gas system is 3/2 PV. More free lessons at: http://www.khanacademy.org/video?v=qSFY7GKhSRs

  • 13:00 pH of a Weak Base

    pH of a Weak Base

    653 views / 0 likes - added

    pH of .2 M of NH3 (weak base). More free lessons at: http://www.khanacademy.org/video?v=gDJtOIxDu78

  • 05:46 Ideal Gas Equation Example 3

    Ideal Gas Equation Example 3

    657 views / 0 likes - added

    Figuring out the mass of Oxygen we have. More free lessons at: http://www.khanacademy.org/video?v=69V-60sga3M

  • 13:01 Popular Ideal Gas Equation Example 2

    Ideal Gas Equation Example 2

    783 views / 0 likes - added

    PV/T is a constant. Figuring out the volume of an ideal gas at standard temperature and pressure (STP). More free lessons at: http://www.khanacademy.org/video?v=GwoX_BemwHs

  • 10:18 Popular Electron Configurations 2

    Electron Configurations 2

    726 views / 0 likes - added

    Figuring out configurations for the d-block elements More free lessons at: http://www.khanacademy.org/video?v=YURReI6OJsg

  • 06:24 Popular Adding Rational Expressions Example 3

    Adding Rational Expressions Example 3

    778 views / 0 likes - added

    Adding Rational Expressions Example 3

  • 06:40 Popular Adding Rational Expressions Example 2

    Adding Rational Expressions Example 2

    942 views / 0 likes - added

    Adding Rational Expressions Example 2

  • 08:05 Popular Identifying Quadratic Models

    Identifying Quadratic Models

    716 views / 0 likes - added

    Using y=x^2 to give a sense of why the change in the change of y (or the change in the slope) is constant

  • 11:06 Popular Word Problem Solving 3

    Word Problem Solving 3

    814 views / 0 likes - added

    Word problem solving strategies from chapter 3 of ck12.org Algebra I book

  • 14:15 Popular Percent Problems

    Percent Problems

    777 views / 0 likes - added

    Percent Problems from Chapter 3 of ck12.org Algebra I textbook

  • 12:20 Popular Problem Solving Word Problems 2

    Problem Solving Word Problems 2

    727 views / 0 likes - added

    More free lessons at: http://www.khanacademy.org/video?v=s1QN7sSfBM8

  • 03:03 Popular Graphing Linear Inequalities in Two Variables Example 2

    Graphing Linear Inequalities in Two Variables Example 2

    817 views / 0 likes - added

    U05_L2_T1_WE2 Graphing Linear Inequalities in Two Variables More free lessons at: http://www.khanacademy.org/video?v=FnrqBgot3jM Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 10:51 Probability of Dependent Events 2

    Probability of Dependent Events 2

    679 views / 0 likes - added

    U12_L2_T4_we3 Probability of Dependent Events 2 More free lessons at: http://www.khanacademy.org/video?v=ccrYD6iX_SY Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 07:43 Permutations and Combinations 3

    Permutations and Combinations 3

    669 views / 0 likes - added

    U12_L2_T3_we3 Permutations and Combinations 3 More free lessons at: http://www.khanacademy.org/video?v=SbpoyXTpC84 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

  • 02:19 Permutations and Combinations 2

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