Search Results: "Ni"
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18:29 Popular
US History Overview 1: Jamestown to the Civil War
1,114 views / 3 likes - addedJamestown to the Civil War. Correction: Jamestown was the first successful ENGLISH settlement in what is now the United States. The Spanish actually settled St. Augustine, Florida in 1595. More free lessons at: http://www.khanacademy.org/video?v=ghgPq2wjQ
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15:04
Communism
548 views / 0 likes - addedOverview of Communism and Marxist-Leninist States More free lessons at: http://www.khanacademy.org/video?v=MmRgMAZyYN0
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14:21
20th Century Capitalism and Regulation in the United States
606 views / 0 likes - addedOverview of cycles of regulation, de-regulation and government in 20th century US capitalism More free lessons at: http://www.khanacademy.org/video?v=J33nVRyTeyU
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14:51
French Revolution (Part 2)
545 views / 2 likes - addedRoyals try to escape. Champ De Mars Massacre. Declaration of Pillnitz. Movement towards becoming a Republic. More free lessons at: http://www.khanacademy.org/video?v=0t4MF9ZoppM
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20:22 Popular
Napoleon's Peninsular Campaigns
701 views / 0 likes - addedFrench forces get embroiled in the Iberian Peninsula More free lessons at: http://www.khanacademy.org/video?v=ALJGz4r_VF0
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05:49
Opportunity Cost
619 views / 0 likes - addedOpportunity cost (and marginal cost) based on the PPF More free lessons at: http://www.khanacademy.org/video?v=pkEiHZAtoro
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06:26
Increasing Opportunity Cost
681 views / 0 likes - addedWhy the opportunity cost may increase as you pursue more rabbits More free lessons at: http://www.khanacademy.org/video?v=00fgAG6VrRQ
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04:37
Constant Unit Elasticity
504 views / 0 likes - addedWhat a demand curve with constant unit elasticity would look like More free lessons at: http://www.khanacademy.org/video?v=m7qXvQvWlY4
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08:20
Producer Surplus
560 views / 0 likes - addedLooking at the supply curve as an opportunity cost curve. Understanding the producer surplus as the area between the supply curve and the market price More free lessons at: http://www.khanacademy.org/video?v=-V-Y5klejSg
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09:06
Minimum Wage and Price Floors
549 views / 0 likes - addedHow a minimum wage might effect the labor market More free lessons at: http://www.khanacademy.org/video?v=j0c2vmFGbtk
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08:10
Depreciation and Opportunity Cost of Capital
540 views / 0 likes - addedHow to account for things when you own the building instead of renting it More free lessons at: http://www.khanacademy.org/video?v=ckBKDrKVIMU
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05:55
Marginal Revenue Below Average Total Cost
523 views / 0 likes - addedWhy it is rational to produce at a loss More free lessons at: http://www.khanacademy.org/video?v=ni0TL4pXG5w
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09:21
Prisoners' Dilemma and Nash Equilibrium
599 views / 1 likes - addedWhy two not-so-loyal criminals would want to snitch each other out More free lessons at: http://www.khanacademy.org/video?v=UkXI-zPcDIM
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06:31
More on Nash Equilibrium
505 views / 0 likes - addedLooking more closely at the definition of Nash Equilibrium More free lessons at: http://www.khanacademy.org/video?v=ewu_7Dmj_18
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06:38
Tragedy of the Commons
478 views / 0 likes - addedHow public resources can be abused More free lessons at: http://www.khanacademy.org/video?v=0b2Tl0x-niw
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02:50
More on Final and Intermediate GDP Contributions
458 views / 0 likes - addedWhat happens when a good is not finished in a period More free lessons at: http://www.khanacademy.org/video?v=C1pHvEAKmLA
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08:54
Monetary and Fiscal Policy
488 views / 0 likes - addedBasic mechanics of monetary and fiscal policy More free lessons at: http://www.khanacademy.org/video?v=ntxMOKXHlfo
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06:29
Balance of Payments- Current Account
523 views / 0 likes - addedUnderstanding the United States Current Account in 2011 More free lessons at: http://www.khanacademy.org/video?v=dirBYVjDk7A
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07:41
Math Mechanics of Thai Banking Crisis
663 views / 0 likes - addedGoing through the mechanics of how a Thai financial institution can lose their shirt when their currency devalues. More free lessons at: http://www.khanacademy.org/video?v=9p3HNMe-oAI
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08:21
How and why Greece would leave the Euro (part 3)
469 views / 0 likes - addedThe pain and mechanics of leaving the Euro More free lessons at: http://www.khanacademy.org/video?v=jkmwAJMERrY
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04:03
Carry Trade Basics
652 views / 0 likes - addedThe mechanics of the carry trade More free lessons at: http://www.khanacademy.org/video?v=8In5PK1yUAA
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09:12 Popular
Koch Snowflake Fractal
710 views / 0 likes - addedA shape that has an infinite perimeter but finite area More free lessons at: http://www.khanacademy.org/video?v=azBNsPa1WC4
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03:15
US and Japanese Quantitative Easing
513 views / 0 likes - addedComparing quantitative easing in Japan to "credit easing" in the United States More free lessons at: http://www.khanacademy.org/video?v=a-R8qpea6lc
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11:20 Popular
Richter Scale
766 views / 2 likes - addedThe basics of the logarithmic Richter and Moment Magnitude Scales to measure earthquakes More free lessons at: http://www.khanacademy.org/video?v=RFn-IGlayAg
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12:26 Popular
Human Evolution Overview
967 views / 0 likes - addedFrom the extinction of the dinosaurs to humanity More free lessons at: http://www.khanacademy.org/video?v=frE1rjhH77Y
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11:10
Electoral College
541 views / 0 likes - addedHow we elect our President in the United States More free lessons at: http://www.khanacademy.org/video?v=oTbvYGH_Hiw
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13:19 Popular
Plate Tectonics -- Evidence of plate movement
1,981 views / 0 likes - addedPlate Tectonics -- Evidence of plate movement More free lessons at: http://www.khanacademy.org/video?v=6EdsBabSZ4g
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09:05
Projectile motion (part 3)
504 views / 0 likes - addedAn example of solving for the final velocity when you know the change in distance, time, initial velocity, and acceleration More free lessons at: http://www.khanacademy.org/video?v=Y5cSGxdDHz4
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08:58
Projectile motion (part 4)
449 views / 0 likes - addedSolving for time when you are given the change in distance, acceleration, and initial velocity More free lessons at: http://www.khanacademy.org/video?v=-W3RkgvLrGI
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08:10
Introduction to angular velocity
526 views / 0 likes - addedAngular velocity or how fast something is spinning.
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09:36
2003 AIME II Problem 12
490 views / 0 likes - addedMinimum members in a committee More free lessons at: http://www.khanacademy.org/video?v=KD46pC_KFWk
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06:43 Popular
IIT JEE Position Vectors
807 views / 0 likes - added2010 IIT JEE Paper 1 problem 32 Position Vectors More free lessons at: http://www.khanacademy.org/video?v=GDXyGy5TjnI
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13:11 Popular
IIT JEE Algebraic Manipulation
740 views / 0 likes - added2010 Paper 1 problem 35 Algebraic Manipulation More free lessons at: http://www.khanacademy.org/video?v=zs5LM7dxyTo
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09:54
IIT JEE Hairy Trig and Algebra (Part 2)
700 views / 0 likes - added2010 IIT JEE Paper 1 #38 Hairy Trig and Algebra (Part 2) More free lessons at: http://www.khanacademy.org/video?v=6t9ogglXNIM
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14:00 Popular
IIT JEE Differentiability and Boundedness
744 views / 0 likes - added2010 IIT JEE Paper 1 Problem 40 Differentiability and Boundedness More free lessons at: http://www.khanacademy.org/video?v=FIt1RNiCO6U
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09:55 Popular
IIT JEE Trigonometric Maximum
782 views / 0 likes - added2010 IIT JEE Paper 1 Problem 48 Trigonometric Maximum More free lessons at: http://www.khanacademy.org/video?v=tzR9jUCSniQ
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16:39
Radius of Observable Universe
480 views / 0 likes - addedRadius of Observable Universe More free lessons at: http://www.khanacademy.org/video?v=6nVysrZQnOQ
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02:15
(Correction) Radius of Observable Universe
484 views / 0 likes - added(Correction) Radius of Observable Universe More free lessons at: http://www.khanacademy.org/video?v=b6VQv76BQDs
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08:58
A Universe Smaller than the Observable
471 views / 0 likes - addedA Universe Smaller than the Observable More free lessons at: http://www.khanacademy.org/video?v=0w9R_foNLrg
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09:26
Stellar Parallax
449 views / 0 likes - addedAnother version of the stellar parallax introduction More free lessons at: http://www.khanacademy.org/video?v=omvNINaRdxg
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07:34
Parsec Definition
472 views / 0 likes - addedParsec Definition More free lessons at: http://www.khanacademy.org/video?v=6zV3JEjLoyE
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10:26
Beginnings of Life
660 views / 0 likes - addedLife and photosynthesis start to thrive in the Archean Eon More free lessons at: http://www.khanacademy.org/video?v=nYFuxTXDj90
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08:00 Popular
Plate Tectonics-- Difference between crust and lithosphere
711 views / 0 likes - addedPlate Tectonics Introduction and Difference between crust and lithosphere More free lessons at: http://www.khanacademy.org/video?v=f2BWsPVN7c4
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11:58 Popular
Plate Tectonics -- Geological Features of Divergent Plate Boundaries
1,510 views / 0 likes - addedPlate Tectonics -- Geological Features of Divergent Plate Boundaries More free lessons at: http://www.khanacademy.org/video?v=FK1s1-OJ5BE
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06:04 Popular
Plate Tectonics-- Geological features of Convergent Plate Boundaries
755 views / 1 likes - addedGeological features of Convergent Plate Boundaries More free lessons at: http://www.khanacademy.org/video?v=Y0eWnOZpSpQ
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11:50 Popular
Compositional and Mechanical Layers of the Earth
842 views / 2 likes - addedCrust, mantle, core, lithosphere, asthenosphere, mesosphere, outer core, inner core More free lessons at: http://www.khanacademy.org/video?v=hHteUIS0OFY
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10:35
Potassium-Argon (K-Ar) Dating
633 views / 0 likes - addedHow K-Ar dating can be used to date very old volcanic rock and the things that might be buried in between More free lessons at: http://www.khanacademy.org/video?v=NMZ5kJEviD0
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13:17
Collective Learning
562 views / 0 likes - addedHow symbolic language drives collective learning and how this is one of the truly differentiating aspects of human beings relative to the rest of the animal kingdom More free lessons at: http://www.khanacademy.org/video?v=NqR_dtZu4Mo
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01:51
Multiplying Whole Numbers and Applications 4
606 views / 0 likes - addedU01_L3_T1_we4 Multiplying Whole Numbers and Applications 4 More free lessons at: http://www.khanacademy.org/video?v=tx2Niw7aJJ8 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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06:26
Recognizing Divisibility
639 views / 0 likes - addedU02_L1_T3_we1 Recognizing Divisibility More free lessons at: http://www.khanacademy.org/video?v=2G_Jr_XpnY4 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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04:40
Recognizing Prime Numbers
585 views / 0 likes - addedU02_L1_T3_we4 Recognizing Prime Numbers More free lessons at: http://www.khanacademy.org/video?v=3h4UK62Qrbo Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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02:31
Finding Unit Rates
490 views / 0 likes - addedU04_L1_T1_we3 Finding Unit Rates More free lessons at: http://www.khanacademy.org/video?v=Zm0KaIw-35k Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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03:01
Describing the Meaning of Percent
450 views / 0 likes - addedU05_L1_T1_we1 Describing the Meaning of Percent More free lessons at: http://www.khanacademy.org/video?v=Lvr2YsxG10o Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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02:22
Describing the Meaning of Percent 2
472 views / 0 likes - addedU05_L1_T1_we2 Describing the Meaning of Percent 2 More free lessons at: http://www.khanacademy.org/video?v=MokI3Fi8jpc Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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05:48
Unit Conversion with Fractions
423 views / 0 likes - addedu6_l1_t1_we1 Unit Conversion with Fractions More free lessons at: http://www.khanacademy.org/video?v=jFSenp9ueaI Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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05:57
Adding different units of length
506 views / 0 likes - addedU06_L1_T1_we2 Adding different units of length
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08:04 Popular
Converting units of length
886 views / 0 likes - addedU06_L1_T1_we3 Converting units of length More free lessons at: http://www.khanacademy.org/video?v=AGFO-ROxH_I Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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03:31
Adding different units for weight
606 views / 0 likes - addedU06_L1_T2_we2 Adding different units for weight
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07:08
Application problems involving units of weight
565 views / 0 likes - addedU06_L1_T2_we3 Application problems involving units of weight More free lessons at: http://www.khanacademy.org/video?v=gnCL_0uA6Ds Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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05:23
Performing arithmetic calculations on units of volume
565 views / 0 likes - addedU06_L1_T3_we2 Performing arithmetic calculations on units of volume More free lessons at: http://www.khanacademy.org/video?v=hShqXKpI6KA Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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03:29
Solving application problems involving units of volume
567 views / 0 likes - addedU06_L1_T3_we3 Solving application problems involving units of volume More free lessons at: http://www.khanacademy.org/video?v=KgoXx_58QyQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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05:10 Popular
U.S. Customary and Metric units
741 views / 0 likes - addedU06_L2_T1_we1 U.S. Customary and Metric units More free lessons at: http://www.khanacademy.org/video?v=y2RHWA7t0WM Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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05:16 Popular
Conversion between metric units
839 views / 0 likes - addedU06_L2_T1_we2 Conversion between metric units More free lessons at: http://www.khanacademy.org/video?v=SYkmadc2wOI Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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06:13
Perimeter and Unit Conversion
516 views / 0 likes - addedu6_l2_t3_we1 Perimeter and Unit Conversion More free lessons at: http://www.khanacademy.org/video?v=q9XCrpLPfGk Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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07:29
Representing Structures of Organic Molecules
450 views / 0 likes - addedRepresenting Structures of Organic Molecules More free lessons at: http://www.khanacademy.org/video?v=pMoA65Dj-zk
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08:59
More Organic Chemistry Naming Examples 1
585 views / 0 likes - addedMore Organic Chemistry Naming Examples 1
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10:26
Organic Chemistry Naming Examples 2
502 views / 0 likes - addedOrganic Chemistry Naming Examples 2 More free lessons at: http://www.khanacademy.org/video?v=CJRQ8gOjq4E
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08:11
Organic Chemistry Naming Examples 3
495 views / 0 likes - addedOrganic Chemistry Naming Examples 3 More free lessons at: http://www.khanacademy.org/video?v=Se-ekDNhCDk
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07:48
Organic Chemistry Naming Examples 4
505 views / 0 likes - addedOrganic Chemistry Naming Examples 4
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10:04
Organic Chemistry Naming Examples 5
484 views / 0 likes - addedOrganic Chemistry Naming Examples 5 More free lessons at: http://www.khanacademy.org/video?v=6BR0Q5e74bs
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11:22
Introduction to Reaction Mechanisms
480 views / 0 likes - addedIntroduction to Reaction Mechanisms . Addition reaction to an alkene More free lessons at: http://www.khanacademy.org/video?v=Z_GWBW_GVGA
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09:09
Markovnikov's Rule and Carbocations
510 views / 0 likes - addedMarkovnikov's Rule and Carbocations. Figuring out which addition reaction is more likely. More free lessons at: http://www.khanacademy.org/video?v=X-VCk3WrGlM
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11:33
Ring-opening Sn2 reaction of expoxides
644 views / 0 likes - addedRing-opening Sn2 reaction of expoxides
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04:01
Recognizing Linear Functions
460 views / 0 likes - addedU03_L2_T5_we1 : Recognizing Linear Functions More free lessons at: http://www.khanacademy.org/video?v=AZroE4fJqtQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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02:43
Parallel lines 3
603 views / 0 likes - addedU04_L2_T1_we3 : Parallel lines 3 More free lessons at: http://www.khanacademy.org/video?v=y5yNi08cr6I Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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04:37
Polynomials1
653 views / 0 likes - addedU08_L2_T1_we1 Polynomials1 More free lessons at: http://www.khanacademy.org/video?v=EvvxBdNIUeQ Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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02:07
U12_L1_T3_we1 Inductive Reasoning 1
436 views / 0 likes - addedU12_L1_T3_we1 Inductive Reasoning 1 More free lessons at: http://www.khanacademy.org/video?v=MnQ7Lizkpqk Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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02:21
Inductive Reasoning 2
488 views / 0 likes - addedU12_L1_T3_we2 Inductive Reasoning 2 More free lessons at: http://www.khanacademy.org/video?v=ZSsBh4Ybbj8 Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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03:03
Inductive Reasoning 3
514 views / 0 likes - addedU12_L1_T3_we3 Inductive Reasoning 3 More free lessons at: http://www.khanacademy.org/video?v=pgfWkaySFGY Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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02:00
Deductive Reasoning 1
540 views / 0 likes - addedU12_L1_T4_we1 Deductive Reasoning 1 More free lessons at: http://www.khanacademy.org/video?v=GEId0GonOZM Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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03:57
Deductive Reasoning 2
525 views / 0 likes - addedU12_L1_T4_we2 Deductive Reasoning 2 More free lessons at: http://www.khanacademy.org/video?v=VMEV__2wW3E Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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04:11
Deductive Reasoning 3
551 views / 0 likes - addedU12_L1_T4_we3 Deductive Reasoning 3 More free lessons at: http://www.khanacademy.org/video?v=lYLaaMObgkw Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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19:55
Embryonic Stem Cells
518 views / 0 likes - addedAn overview of early development of a zygote to an embryo. Embryonic and somatic stem cells. More free lessons at: http://www.khanacademy.org/video?v=-yCIMk1x0Pk
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17:08
Oxidation and Reduction in Cellular Respiration
490 views / 0 likes - addedOxidation and reduction in cellular respiration. Reconciling the biology and chemistry definitions of oxidation and reduction. More free lessons at: http://www.khanacademy.org/video?v=_KyyVhlUDNU
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08:37 Popular
CAM Plants
921 views / 0 likes - addedHow CAM Plants are able to fix carbon at night so they don't have to keep their stomata open during the day More free lessons at: http://www.khanacademy.org/video?v=xp6Zj24h8uA
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18:53
Electrotonic and Action Potentials
513 views / 0 likes - addedHow electrotonic and action potentials propagate down cells
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09:38
Myosin and Actin
517 views / 0 likes - addedHow myosin and actin interact to produce mechanical force. More free lessons at: http://www.khanacademy.org/video?v=zopoN2i7ALQ
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09:22
Tropomyosin and troponin and their role in regulating muscle contraction
694 views / 0 likes - addedTropomyosin and troponin and their role in regulating muscle contraction. How calcium ion concentration dictates whether a muscle is contracting or not. More free lessons at: http://www.khanacademy.org/video?v=LiOfeSsjrB8
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16:20
Role of Phagocytes in Innate or Nonspecific Immunity
463 views / 0 likes - addedRole of phagocytes in innate or nonspecific immunity. Neutrophils, macrophages, and dendritic cells. MHC II. More free lessons at: http://www.khanacademy.org/video?v=O1N2rENXq_Y
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08:07
Types of immune responses: Innate and Adaptive. Humoral vs. Cell-Mediated
582 views / 0 likes - addedOverview of types of immune responses. Difference between innate and adaptive immunity. Differences between humoral adaptive immunity and cell-mediated adaptive immunity. More free lessons at: http://www.khanacademy.org/video?v=rp7T4IItbtM
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08:49
Species
676 views / 1 likes - addedWhat a species is and isn't. Ligers, tiglons, mule, hinnies, and dogs More free lessons at: http://www.khanacademy.org/video?v=Tmt4zrDK3dA
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12:13
Periodic Table Trends: Ionization Energy
556 views / 0 likes - addedWhat an ion is. Using the periodic table to understand how difficult it is to ionize an atom. More free lessons at: http://www.khanacademy.org/video?v=ywqg9PorTAw
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13:22
Ionic, Covalent, and Metallic Bonds
531 views / 0 likes - addedIntroduction to ionic, covalent, polar covalent and metallic bonds. More free lessons at: http://www.khanacademy.org/video?v=CGA8sRwqIFg
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09:44
The Mole and Avogadro's Number
625 views / 0 likes - addedIntroduction to the idea of a mole as a number (vs. an animal) More free lessons at: http://www.khanacademy.org/video?v=AsqEkF7hcII
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09:14
Covalent Networks, Metallic, and Ionic Crystals
587 views / 1 likes - addedCovalent Networks, Metallic, and Ionic Crystals: Some of the strongest molecular structures. More free lessons at: http://www.khanacademy.org/video?v=Rw_pDVbnfQk
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03:04
Mini-Video on Ion Size
542 views / 0 likes - addedCorrecting a mistake and learning a bit about ion size More free lessons at: http://www.khanacademy.org/video?v=HBi8xjMchZc
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18:09
Introduction to pH, pOH, and pKw
563 views / 0 likes - addedAutoionization of water into hydronium and hydroxide ions. pH, pOH, and pKa. More free lessons at: http://www.khanacademy.org/video?v=2q4vSKwaBtw
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18:37
Acid Base Introduction
580 views / 0 likes - addedArrhenius, Bronsted Lowry, and Lewis Acids and Bases. More free lessons at: http://www.khanacademy.org/video?v=vShCnTY1-T0
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12:31
Half-Life
683 views / 0 likes - addedIntroduction to half-life More free lessons at: http://www.khanacademy.org/video?v=9REPnibO4IQ
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15:38
Thermodynamic Entropy Definition Clarification
509 views / 0 likes - addedClarifying that the thermodynamic definition of Entropy requires a reversible system. More free lessons at: http://www.khanacademy.org/video?v=PFcGiMLwjeY
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28:26
Reconciling Thermodynamic and State Definitions of Entropy
475 views / 0 likes - addedLong video explaining why entropy is a measure of the number of states a system can take on (mathy, but mind-blowing). More free lessons at: http://www.khanacademy.org/video?v=WLKEVfLFau4
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14:04
Efficiency of a Carnot Engine
655 views / 0 likes - addedDefinition of efficiency for a heat engine. Efficiency of a Carnot Engine. More free lessons at: http://www.khanacademy.org/video?v=M_5KYncYNyc
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09:57
Gibbs Free Energy Example
584 views / 0 likes - addedDetermining if a reaction is spontaneous by calculating the change in Gibbs Free Energy. More free lessons at: http://www.khanacademy.org/video?v=sG1ZAdYi13A
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12:43
Spectrophotometry Example
478 views / 0 likes - addedSpectrophotometry Example - Determining concentration based on absorbance More free lessons at: http://www.khanacademy.org/video?v=VqAa_cmZ7OY
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10:15
Earnings and EPS
552 views / 0 likes - addedEarnings, EPS (earnings per share) and how they relate to the income statement and balance sheet More free lessons at: http://www.khanacademy.org/video?v=RouNXdkC0do
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14:47
Introduction to the Price-to-Earnings Ratio
452 views / 0 likes - addedPrice to Earnings Ration (or P/E ratio). More free lessons at: http://www.khanacademy.org/video?v=cppxO67e6eo
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15:34
P/E Discussion
481 views / 0 likes - addedDiscussion of the price-to-earnings ratio More free lessons at: http://www.khanacademy.org/video?v=V-rko8jgJ9o
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13:41
P/E Conundrum
560 views / 0 likes - addedA situation where the price to earnings ratio seems to not fairly price an asset More free lessons at: http://www.khanacademy.org/video?v=VrFbXxkl9JU
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11:19 Popular
Light Bulb Switching Brain Teaser
785 views / 0 likes - addedTurning light bulbs on and off. More free lessons at: http://www.khanacademy.org/video?v=WNhxkpmVQYw
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14:28
Sampling Distribution Example Problem
518 views / 0 likes - addedFiguring out the probability of running out of water on a camping trip More free lessons at: http://www.khanacademy.org/video?v=0ZstEh_8bYc
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06:47 Popular
Squared Error of Regression Line
718 views / 0 likes - addedIntroduction to the idea that one can find a line that minimizes the squared distances to the points More free lessons at: http://www.khanacademy.org/video?v=6OvhLPS7rj4
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10:35
Proof (Part 1) Minimizing Squared Error to Regression Line
680 views / 0 likes - addedProof (Part 1) Minimizing Squared Error to Regression Line More free lessons at: http://www.khanacademy.org/video?v=mIx2Oj5y9Q8
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10:54 Popular
Proof (Part 3) Minimizing Squared Error to Regression Line
724 views / 0 likes - addedProof (Part 3) Minimizing Squared Error to Regression Line More free lessons at: http://www.khanacademy.org/video?v=u1HhUB3NP8g
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04:18 Popular
Proof (Part 4) Minimizing Squared Error to Regression Line
784 views / 0 likes - addedProof (Part 4) Minimizing Squared Error to Regression Line More free lessons at: http://www.khanacademy.org/video?v=8RSTQl0bQuw
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09:54 Popular
Proof Part 2 Minimizing Squared Error to Line
749 views / 0 likes - addedProof Part 2 Minimizing Squared Error to Line More free lessons at: http://www.khanacademy.org/video?v=f6OnoxctvUk
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14:30
An IPO
561 views / 0 likes - addedThe initial public offering of our online sock company. More free lessons at: http://www.khanacademy.org/video?v=ywOr4OYqXOs
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11:59
Banking 2: A bank's income statement
671 views / 0 likes - addedIntroduction to the income statement of a bank (and to income statements in general). More free lessons at: http://www.khanacademy.org/video?v=h3lMANILkw0
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11:07
Banking 4: Multiplier effect and the money supply
637 views / 0 likes - addedHow "money" is created in a fractional reserve banking system. M0 and M1 definitions of the money suppy. The multiplier effect. More free lessons at: http://www.khanacademy.org/video?v=F7r7l1VG-Tw
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11:42
Banking 14: Fed Funds Rate
689 views / 0 likes - addedHow open market operations effect the rate at which banks lend to each other overnight. More free lessons at: http://www.khanacademy.org/video?v=IniG1KkPS2c
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12:16
Banking 15: More on the Fed Funds Rate
657 views / 0 likes - addedMore on the mechanics of the Federal Funds rate and how it increases the money supply. More free lessons at: http://www.khanacademy.org/video?v=rgqFXkLAc-4
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10:13 Popular
Banking 17: What happened to the gold?
715 views / 0 likes - addedGetting off the gold standard. A short discussion of the meaning of wealth. More free lessons at: http://www.khanacademy.org/video?v=NFDMXwwzyIM
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11:25
Repurchase Agreements (Repo transactions)
508 views / 0 likes - addedMechanics of repurchase agreements (repo transactions/loans) More free lessons at: http://www.khanacademy.org/video?v=QWninXOAMXE
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05:59
2nd Order Linear Homogeneous Differential Equations 3
583 views / 1 likes - addedLet's use some initial conditions to solve for the particular solution More free lessons at: http://www.khanacademy.org/video?v=UyCwAFQt4v0
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09:11
2nd Order Linear Homogeneous Differential Equations 4
636 views / 0 likes - addedAnother example with initial conditions! More free lessons at: http://www.khanacademy.org/video?v=3uO_uPb9H8w
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10:12
Complex roots of the characteristic equations 3
545 views / 0 likes - addedLets do an example with initial conditions! More free lessons at: http://www.khanacademy.org/video?v=rGaM6pwqhB0
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08:52
Repeated roots of the characterisitic equations part 2
531 views / 0 likes - addedAn example where we use initial conditions to solve a repeated-roots differential equation. More free lessons at: http://www.khanacademy.org/video?v=YezsgIlcb68
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09:07
Laplace Transform of : L{t}
588 views / 0 likes - addedDetermining the Laplace Transform of t More free lessons at: http://www.khanacademy.org/video?v=qhKJ1DG9kYY
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24:16 Popular
Laplace Transform of the Unit Step Function
795 views / 0 likes - addedIntroduction to the unit step function and its Laplace Transform More free lessons at: http://www.khanacademy.org/video?v=4Mr7aEHQr8E
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12:14
Using the Convolution Theorem to Solve an Initial Value Prob
598 views / 0 likes - addedUsing the Convolution Theorem to solve an initial value problem More free lessons at: http://www.khanacademy.org/video?v=rfyq32mHcYs
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17:38
More on linear independence
561 views / 0 likes - addedMore examples determining linear dependence or independence. More free lessons at: http://www.khanacademy.org/video?v=Alhcv5d_XOs
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16:53
Span and Linear Independence Example
537 views / 0 likes - addedDetermining whether 3 vectors are linearly independent and/or span R3 More free lessons at: http://www.khanacademy.org/video?v=9kW6zFK5E5c
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19:00
Linear Algebra: Basis of a Subspace
586 views / 0 likes - addedUnderstanding the definition of a basis of a subspace More free lessons at: http://www.khanacademy.org/video?v=zntNi3-ybfQ
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09:10
Vector Dot Product and Vector Length
565 views / 0 likes - addedDefinitions of the vector dot product and vector length More free lessons at: http://www.khanacademy.org/video?v=WNuIhXo39_k
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18:53
Linear Algebra: Vector Triangle Inequality
611 views / 0 likes - addedProving the triangle inequality for vectors in Rn More free lessons at: http://www.khanacademy.org/video?v=PsNidCBr5II
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25:11
Defining the angle between vectors
700 views / 0 likes - addedIntroducing the idea of an angle between two vectors More free lessons at: http://www.khanacademy.org/video?v=5AWob_z74Ks
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13:53
Defining a plane in R3 with a point and normal vector
691 views / 0 likes - addedDetermining the equation for a plane in R3 using a point on the plane and a normal vector More free lessons at: http://www.khanacademy.org/video?v=UJxgcVaNTqY
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21:10 Popular
Matrix Vector Products
718 views / 0 likes - addedDefining and understanding what it means to take the product of a matrix and a vector More free lessons at: http://www.khanacademy.org/video?v=7Mo4S2wyMg4
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21:11
Visualizing a Column Space as a Plane in R3
671 views / 0 likes - addedDetermining the planar equation for a column space in R3 More free lessons at: http://www.khanacademy.org/video?v=EGNlXtjYABw
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16:37 Popular
im(T): Image of a Transformation
741 views / 0 likes - addedShowing that the image of a subspace under a transformation is also a subspace. Definition of the image of a Transformation. More free lessons at: http://www.khanacademy.org/video?v=hZ827mfh1Jo
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05:23 Popular
Preimage of a set
824 views / 0 likes - addedDefinition of preimage of a set More free lessons at: http://www.khanacademy.org/video?v=zVsGtU8lIWs
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15:23 Popular
Preimage and Kernel Example
709 views / 0 likes - addedExample involving the preimage of a set under a transformation. Definition of kernel of a transformation. More free lessons at: http://www.khanacademy.org/video?v=6yrPU8rYOhs
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15:09
Sums and Scalar Multiples of Linear Transformations
658 views / 0 likes - addedSums and Scalar Multiples of Linear Transformations. Definitions of matrix addition and scalar multiplication. More free lessons at: http://www.khanacademy.org/video?v=wHuY97vss18
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06:59
Unit Vectors
685 views / 0 likes - addedWhat unit vectors are and how to construct them More free lessons at: http://www.khanacademy.org/video?v=lQn7fksaDq0
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14:37
Introduction to Projections
660 views / 0 likes - addedDetermining the projection of a vector on s line More free lessons at: http://www.khanacademy.org/video?v=27vT-NWuw0M
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16:41
Expressing a Projection on to a line as a Matrix Vector prod
668 views / 0 likes - addedExpressing a Projection on to a line as a Matrix Vector prod More free lessons at: http://www.khanacademy.org/video?v=JK-8XNIoAkI
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16:31
Compositions of Linear Transformations 2
645 views / 0 likes - addedProviding the motivation for definition of matrix products More free lessons at: http://www.khanacademy.org/video?v=BuqcKpe5ZQs
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22:41 Popular
Proof: Invertibility implies a unique solution to f(x)=y
731 views / 0 likes - addedProof: Invertibility implies a unique solution to f(x)=y for all y in co-domain of f. More free lessons at: http://www.khanacademy.org/video?v=7GEUgRcnfVE
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25:51
Determining whether a transformation is onto
630 views / 0 likes - addedDetermining whether a transformation is onto More free lessons at: http://www.khanacademy.org/video?v=eR8vEdJTvd0
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16:34 Popular
Linear Algebra: Exploring the solution set of Ax=b
1,859 views / 0 likes - addedExploring the solution set of Ax=b (non homogeneous equations) More free lessons at: http://www.khanacademy.org/video?v=1PsNIzUJPkc
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18:00
Linear Algebra: Deriving a method for determining inverses
638 views / 0 likes - addedDetermining a method for constructing inverse transformation matrices More free lessons at: http://www.khanacademy.org/video?v=6DpzCKJBsz0
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18:20
Linear Algebra: Formula for 2x2 inverse
685 views / 0 likes - addedFiguring out the formula for a 2x2 matrix. Defining the determinant. More free lessons at: http://www.khanacademy.org/video?v=eEUK_ThrHuQ
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18:40
Linear Algebra: nxn Determinant
636 views / 0 likes - addedDefining the determinant for nxn matrices. An exampled of a 4x4 determinant. More free lessons at: http://www.khanacademy.org/video?v=H9BWRYJNIv4
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27:01 Popular
Lin Alg: Representing vectors in Rn using subspace members
1,100 views / 0 likes - addedShowing that any member of Rn can be represented as a unique sum of a vector in subspace V and a vector in the orthogonal complement of V. More free lessons at: http://www.khanacademy.org/video?v=M6lFqkqvUgo
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03:27 Popular
Lin Alg: Orthogonal Complement of the Nullspace
741 views / 0 likes - addedThe orthogonal complement of the nullspace and left nullspace. More free lessons at: http://www.khanacademy.org/video?v=LE_aQAur7nI
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19:12 Popular
Lin Alg: Unique rowspace solution to Ax=b
733 views / 0 likes - addedShowing that, for any b that is in the column space of A, there is a unique member of the row space that is the "smallest" solution to Ax=b More free lessons at: http://www.khanacademy.org/video?v=czIYvs9zj2g
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09:28
Linear Alg: Visualizing a projection onto a plane
668 views / 0 likes - addedVisualizing a projection onto a plane. Showing that the old and new definitions of projections aren't that different. More free lessons at: http://www.khanacademy.org/video?v=uWbZlJURkfA
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09:19 Popular
Linear Algebra: Proof of formula for determining Eigenvalues
730 views / 0 likes - addedProof of formula for determining Eigenvalues More free lessons at: http://www.khanacademy.org/video?v=rfm0wQObxjk
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14:08
Linear Algebra: Eigenvalues of a 3x3 matrix
699 views / 0 likes - addedDetermining the eigenvalues of a 3x3 matrix More free lessons at: http://www.khanacademy.org/video?v=11dNghWC4HI
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15:31
Singapore Math: Grade 3a, Unit 1 (part 1)
499 views / 0 likes - addedObjectives: Read and write numbers less than 10,000. Relate each 4-digit number to its place value.
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15:11
Singapore Math: Grade 3a Unit 1 (part 2)
501 views / 0 likes - addedObjectives: Read and write numbers less than 10,000. Relate each digit in a 4-digit number to its place value.
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13:18
Singapore Math: Grade 3a, Unit 1 (part 3)
621 views / 0 likes - addedObjectives: 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.
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13:07
Singapore Math: Grade 3a, Unit 1 (part 5)
463 views / 0 likes - addedEven more on place value
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15:44
Singapore Math: Grade 3a, Unit 1 (part 6)
481 views / 0 likes - addedOrdering numbers using place value
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13:06
Singapore Math: Grade 3a, Unit 1 (part 7)
488 views / 0 likes - addedPlace value, ordering numbers, number patterns
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15:39
Singapore Math: Grade 3a, Unit 1 (part 8)
469 views / 0 likes - addedMore on number patterns with place value.
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17:53
Singapore Math: Grade 3a, Unit 1 (part 9)
501 views / 0 likes - addedMore number patterns with place value
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14:26
Singapore Math: Grade 3a Unit 2 (part 1)
605 views / 0 likes - addedThe sum of and difference between 2 numbers.
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13:07
Singapore Math: Grade 3a Unit 2 (part 2)
511 views / 0 likes - addedWord problem with cookies
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09:57
Singapore Math: Grade 3a Unit 2 (part 3)
476 views / 0 likes - addedA man selling balloons at a carnival.
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13:54
Singapore Math: Grade 3a Unit 2 (part 6)
427 views / 0 likes - addedMore adding of 4 digit numbers
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12:13
Singapore Math: Grade 3a Unit 2 (part 7)
445 views / 0 likes - addedEven more adding of 4-digit numbers
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15:02
Singapore Math: Grade 3a Unit 2 (part 8)
453 views / 0 likes - addedSubtracting 4-digit numbers
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13:07
Singapore Math: Grade 3a Unit 2 (part 9)
501 views / 0 likes - addedMore on subtracting 4-digit numbers
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11:31
Singapore Math: Grade 3a Unit 2 (part 10)
586 views / 0 likes - addedSome final 4 digit subtraction problems.
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12:16
Singapore Math: Grade 3a Unit 2 (part 11)
550 views / 0 likes - addedSome 2-step word problems.
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05:30 Popular
Mega Millions Jackpot Probability
756 views / 0 likes - addedProbability of winning the Mega Millions jackpot More free lessons at: http://www.khanacademy.org/video?v=gyqodNhM3EU
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15:43
Introduction to Gravity
673 views / 0 likes - addedBasics of gravity and the Law of Universal Gravitation More free lessons at: http://www.khanacademy.org/video?v=Xcel427Ezl0
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09:58
Deriving Displacement as a Function of Time, Acceleration and Initial Velocity
501 views / 0 likes - addedDeriving displacement as a function of time, constant acceleration and initial velocity More free lessons at: http://www.khanacademy.org/video?v=wlB0x9W-qBU
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07:09
Deriving Max Projectile Displacement Given Time
520 views / 0 likes - addedDeriving a formula for maximum projectile displacement as a function of elapsed time More free lessons at: http://www.khanacademy.org/video?v=P7LKEkcNibo
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11:43 Popular
Impact Velocity From Given Height
754 views / 0 likes - addedDetermining how fast something will be traveling upon impact when it is released from a given height More free lessons at: http://www.khanacademy.org/video?v=2ZgBJxT9pbU
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09:47
Different Way to Determine Time in Air
649 views / 0 likes - addedAnother way to determine time in the air given an initial vertical velocity More free lessons at: http://www.khanacademy.org/video?v=_NWc3C3cTNA
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07:53
Total Final Velocity for Projectile
565 views / 0 likes - addedCalculating the total final velocity for a projectile landing at a different altitude (mistake near end: I write 29.03 when it should be 26.03 m/s and the final total magnitude should be 26.55 m/s 78.7 degrees below horizontal More free lessons at: http:/
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07:58
Unit Vectors and Engineering Notation
494 views / 0 likes - addedUsing unit vectors to represent the components of a vector More free lessons at: http://www.khanacademy.org/video?v=2QjdcVTgTTA
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07:21
Intuition on Static and Kinetic Friction Comparisons
551 views / 0 likes - addedWhy static friction is harder to overcome than kinetic friction More free lessons at: http://www.khanacademy.org/video?v=J9BWNiOSGlc
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09:33
2-dimensional momentum problem (part 2)
561 views / 0 likes - addedWe finish the 2-dimensional momentum problem More free lessons at: http://www.khanacademy.org/video?v=leudxqivIJI
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10:02
Introduction to mechanical advantage
620 views / 0 likes - addedIntroduction to simple machines, mechanical advantage and moments. More free lessons at: http://www.khanacademy.org/video?v=pfzJ-z5Ij48
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06:50
Mechanical Advantage (part 2)
564 views / 0 likes - addedMore on mechanical advantage, levers and moments. More free lessons at: http://www.khanacademy.org/video?v=DiBXxWBrV24
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10:35
Mechanical Advantage (part 3)
497 views / 0 likes - addedIntroduction to pulleys and wedges More free lessons at: http://www.khanacademy.org/video?v=vSsK7Rfa3yA
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09:54
Unit Vector Notation
548 views / 0 likes - addedExpressing a vector as the scaled sum of unit vectors More free lessons at: http://www.khanacademy.org/video?v=FaF3v-ezbSk
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09:13 Popular
Unit Vector Notation (part 2)
1,796 views / 0 likes - addedMore 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
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03:01
Loop De Loop Question
660 views / 0 likes - addedAsks students to find the minimum speed necessary to complete the loop de loop More free lessons at: http://www.khanacademy.org/video?v=wjZb3zPuoeA
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06:05
Loop De Loop Answer part 1
580 views / 0 likes - addedFiguring out the minimum speed at the top of the loop de loop to stay on the track More free lessons at: http://www.khanacademy.org/video?v=4SQDybFjhRE
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10:04
Introduction to Harmonic Motion
474 views / 0 likes - addedIntuition behind the motion of a mass on a spring (some calculus near the end). More free lessons at: http://www.khanacademy.org/video?v=Nk2q-_jkJVs
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09:46
Harmonic Motion Part 2 (calculus)
551 views / 0 likes - addedWe 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
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09:44
Harmonic Motion Part 3 (no calculus)
555 views / 0 likes - addedFiguring 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
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10:08
Fluids (part 8)
469 views / 0 likes - addedBeginning of the proof of Bernoulli's Equation. More free lessons at: http://www.khanacademy.org/video?v=uqyLOuAzbvo
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10:09
Fluids (part 9)
554 views / 0 likes - addedSecond part of the Bernoulli's Equation proof. Beginning of a problem that uses the equation. More free lessons at: http://www.khanacademy.org/video?v=QX2YLR09Q78
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10:14
Thermodynamics (part 4)
466 views / 0 likes - addedIntroduction to the concept of a mole. Universal gas constant R. PV=nRT More free lessons at: http://www.khanacademy.org/video?v=5B1i26dUwME
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13:27 Popular
Proof (Advanced): Field from infinite plate (part 1)
791 views / 0 likes - addedElectric field generated by a uniformly charged, infinite plate More free lessons at: http://www.khanacademy.org/video?v=prLfVucoxpw
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