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New videos from Khan Academy 2018-04-25T15:12:40.426314
Mis à jour : il y a 53 min 5 sec

Supply and demand curves in foreign exchange

il y a 0 s
In this video, learn about how the model of the foreign exchange market is used to represent the determination of exchange rates. AP(R) Macroeconomics on Khan Academy: Macroeconomics is all about how an entire nation’s performance is determined and improved over time. Learn how factors like unemployment, inflation, interest rates, economic growth and recession are caused and how they affect individuals and society as a whole. We hit the traditional topics from an AP Macroeconomics course, including basic economic concepts, economic indicators, and the business cycle, national income and price determination, the financial sector, the long-run consequences of stabilization policies, and international trade and finance. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything https://www.youtube.com/subscription_center?add_user=khanacademy

The light of democracy — examining the Statue of Liberty

il y a 0 s
Statue of Liberty, New York Harbor, installed 1886, conceived by Édouard Laboulaye, sculpture designed by Frédéric Auguste Bartholdi, engineered by Gustave Eiffel, pedestal designed by Richard Morris Hunt. Speakers: Dr. Elizabeth Macaulay-Lewis and Dr. Steven Zucker

How to recognize Monet: The Basin at Argenteuil

il y a 46 min
Claude Monet, The Basin at Argenteuil, c. 1872, oil on canvas, 60 x 80.5 cm (Musee d’Orsay, Paris). Speakers: Dr. Steven Zucker and Dr. Beth Harris

Intro to whole numbers

il y a 1 heure 8 min
Let's learn about whole numbers.

Intro to the number line

il y a 1 heure 8 min
Let's look at how and why it is interesting to draw numbers as a line.

Conditions for inference on slope

il y a 12 heures 26 min
Introducing the conditions for making a confidence interval or doing a test about slope in least-squares regression.

Introduction to inference about slope in linear regression

mar, 2018-04-24 23:18
Introduction to sample slopes and using them to make confidence intervals or do a test about the population slope in least-squares regression

Using a confidence interval to test slope

mar, 2018-04-24 20:05
Using confidence interval for hypothesis test on regression slope

Using a P-value to make conclusions in a test about slope

lun, 2018-04-23 17:53
Making conclusions in a hypothesis test about the slope of a least-squares regression line.

Law of conservation of energy

sam, 2018-04-21 01:29
Sal discusses how energy can't be created or destroyed in an isolated system, and works an example of how energy is transformed when a ball falls toward the Earth.

Energy graphs for simple harmonic motion

sam, 2018-04-21 01:29
Sal graphs elastic potential energy and kinetic energy for a mass on a spring and compares the total energy when with and without dissipative forces (friction).

Free body diagram with angled forces: worked example

sam, 2018-04-21 01:20
Sal draws a free body diagram for a box held stationary against a wall with a force at an angle theta.

Breaking down forces for free body diagrams

sam, 2018-04-21 01:20
Sal explains how to draw free body diagrams when forces are applied at an angle. How to find horizontal and vertical components of an angled force using trigonometry.

Types of forces and free body diagrams

sam, 2018-04-21 01:20
Sal defines and compares tension, weight, friction and normal forces using free body diagrams.

Understanding economic growth

ven, 2018-04-20 22:47
In this video, learn about the definition of economic growth and how growth occurs. AP(R) Macroeconomics on Khan Academy: Macroeconomics is all about how an entire nation’s performance is determined and improved over time. Learn how factors like unemployment, inflation, interest rates, economic growth and recession are caused and how they affect individuals and society as a whole. We hit the traditional topics from an AP Macroeconomics course, including basic economic concepts, economic indicators, and the business cycle, national income and price determination, the financial sector, the long-run consequences of stabilization policies, and international trade and finance. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything https://www.youtube.com/subscription_center?add_user=khanacademy

Calculating t statistic for slope of regression line

ven, 2018-04-20 22:28
Calculate the test statistic in a test about the slope of a regression line

Current through resistor in parallel: Worked example

ven, 2018-04-20 21:52
How to calculate the current through a resistor in parallel using equivalent resistance and Ohm's law.

Current due to closing a switch: worked example

ven, 2018-04-20 21:52
Find the current due to closing a switch using equivalent resistance and Ohm's law.

Brown v. Board of Education of Topeka

jeu, 2018-04-19 21:55
Brown v. Board was a Supreme Court case decided in 1954. It ended the doctrine of "separate but equal", and brought an end to racial segregation in schools. In this video, Kim discusses the case with scholars Theodore Shaw and Michael McConnell. To learn more about US Government and Politics, visit Khan Academy at https://www.khanacademy.org/humanities/ap-us-government-and-politics To read more about constitutional law, visit the National Constitution Center’s website: https://constitutioncenter.org On this site, leading scholars interact and explore the Constitution and its history. For each provision of the Constitution, experts from different political perspectives coauthor interpretive explanations when they agree and write separately when their opinions diverge.

Confidence interval for the slope of a regression line

jeu, 2018-04-19 18:21
Confidence interval for the slope of a regression line

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