In this video David quickly reviews the momentum and impulse topics on the AP Physics 1 exam and solves an example problem for each concept. Created by David SantoPietro.
In this video, David quickly explains each torque and angular concept and does a sample question for each one. Created by David SantoPietro.
In this video David quickly explains each concept for waves and simple harmonic motion and does an example question for each one. Created by David SantoPietro.
Learn more about ATP: how it stores energy, and how that energy is released when it's converted to ADP and phosphate. Created by Sal Khan.
ATP synthase and its role in mitochondria during respiration and chloroplasts during photosynthesis.
Using shell model diagram to relate absorption to emission. Derives relationship between emitted photon and energy levels, the Balmer-Rydberg equation. Created by Jay.
This art history video discussion examines Jackson Pollock's "One: Number 31", 1950, Oil and enamel paint on unprimed canvas, 1950 (MoMA).
Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction. Created by Sal Khan.
What is the acceleration due to gravity at the space station. Created by Sal Khan.
A rational agent considers both accounting profit and economic profit. In this video, see an example highlighting the difference between accounting profit and economic profit from a business and a discussion of explicit and implicit costs of operating a business.
The simulation Sal mentions in the video can be found directly following this video in the lesson.
Simple example of accrual accounting. Created by Sal Khan.
How and why a central bank would build foreign currency reserves. Created by Sal Khan.
In this section we will be talking about the basics of acids and bases and how acid-base chemistry is related to chemical equilibrium. We will cover acid and base definitions, pH, acid-base equilibria, acid-base properties of salts, and the pH of salt solutions.
Acoma polychrome water jar, c. 1890, from Acoma, clay and pigment, 25.1 x 29.8 cm (The Metropolitan Museum of Art); speaker: Brian Vallo, Director, Indian Arts Research Center School for Advanced Research, Santa Fe, New Mexico. Created by The Metropolitan Museum of Art.
Mechanics of a share-based acquisition. Created by Sal Khan.
Introduction to Act 1.
Overview of Act 2.
Introduction to Act 3.
Using the signal transduction pathway for the cholera toxin to understand activation and inhibition.