Showing that N(t)=Ne^(-kt) describes the amount of a radioactive substance we have at time T. For students with background in Calculus. Not necessary for intro chemistry class. Created by Sal Khan.
Introduction to Exponential Decay. Using the exponential decay formula to calculate k, calculating the mass of carbon-14 remaining after a given time, and calculating the time it takes to have a specific mass remaining . Created by Sal Khan.
This 8-minute video lesson looks at adding and subtracting rational expressions.
This 4-minute video lesson looks at multiplying and dividing rational expressions.
This 5-minute video lesson looks at multiplying and dividing rational expressions.
This 4-minute video lesson looks at multiplying and dividing rational expressions.
Introduction to extreme shots and angles.
More on the weaknesses of fractional reserve banking. The FDIC and deposit insurance and its side effects. Created by Sal Khan.
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. Created by Sal Khan.
Understanding how channel proteins and carrier proteins can facilitate diffusion across a cell membrane (passive transport).
In this video, learn how to apply the analysis of factor markets to a sample problem.
Price changes the quantity supplied, but what might cause supply to increase even if price hasn't changed? In this video, we explore the determinants of supply: those factors that cause an entire supply curve to shift. Created by Sal Khan.
Difference between Historical Cost and Fair Value Accounting. Created by Sal Khan.
The Roman Empire became less stable over the course of the Third to Fifth centuries CE. Historians point to internal divisions as well as repeated invasions from tribes such as the Huns and the Visigoths as reasons why the Empire fell. The fall of the Western Roman Empire occurred in 476 CE.
How a current can be induced in a loop of wire by a change in magnetic flux.
Example calculating induced current based on change in flux.
How Faraday's Law is used to generate electricity in turbines.
The first fascist regime was established by Benito Mussolini in Italy in 1925. The word fascism comes from "fasci ," an Italian term for "bundle of sticks" that was a symbol for strength in unity. Fascists believe in one-party, totalitarian control of a nation and its economy. Fascist regimes value nationalism and militarization and frequently build nationalist fervor around a concept of shared racial or ethnic superiority. Mussolini's Fascist regime of the 1920s inspired Adolf Hitler's regime in Germany. Created by Sal Khan.
Analysis of the federal reserve balance sheet as of Feb 2007. Created by Sal Khan.
Federal and state powers and the 10th and 14th amendments.