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Khan Academy: 2757 products

Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere. All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …

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Class 11 Physics (India) - Hindi: Bernoulli's example problem 1 (Hindi)

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Ram solves an example problem where liquid exits a hole in a container. Class 11 Physics (India) - Hindi To help students who prefer to lea…

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Class 11 Physics (India): Rewriting before integrating: challenge problem

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In this example, we find the antiderivative an expression which is not so simple. Class 11 Physics (India) Let's learn, practice, and maste…

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Class 11 Physics (India): Relative speed of sound in solids, liquids, and gases

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Sounds travels at different speeds in different media Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics…

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Class 12 Physics (India): Electric potential energy of charges

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In this video David explains how to find the electric potential energy for a system of charges and solves an example problem to find the sp…

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Physics: Introduction to work and energy

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Introduction to work and energy Physics Learn about the basic principles that govern the physical world around us. Solid understanding of a…

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Class 10 Physics (India): Absolute & Relative refractive index

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Let's explore the refractive index in detail. We will see the difference between absolute and relative refractive index Created by Mahesh S…

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Class 11 Physics (India): Ice accelerating down an incline

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Figuring out the acceleration of ice down a plane made of ice Class 11 Physics (India) Let's learn, practice, and master topics of class 11…

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Class 11 Physics (India): 2-dimensional momentum problem (part 2)

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We finish the 2-dimensional momentum problem Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) …

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Physics: Deriving max projectile displacement given time

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Deriving a formula for maximum projectile displacement as a function of elapsed time Physics Learn about the basic principles that govern t…

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Physics: Measuring time in meters in Minkowski spacetime

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As counterintuitive as it might sound, it will become extremely convenient to use the same units for space and time. Happily, we can do tha…

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Class 11 Physics (India): Mild and medium tension

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David explains how to solve tension problems for hanging objects. Class 11 Physics (India) Let's learn, practice, and master topics of clas…

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Class 11 Physics (India) - Hindi: Doppler effect introduction (Hindi)

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Learn about the Doppler effect and how it explains the change in frequency of a wave when its source and an observer are moving. Class 11 P…

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Class 11 Physics (India) - Hindi: Pressure at a depth in a fluid (Hindi)

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Ram derives the formula to determine the pressure at a specific depth in a fluid. Class 11 Physics (India) - Hindi To help students who pre…

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Class 11 Physics (India) - Hindi: Normal forces on Lubricon VI (Hindi)

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Whether the normal force balances the force of gravity for a frozen sock or banana. Class 11 Physics (India) - Hindi To help students who p…

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Class 11 Physics (India): Force of friction keeping the block stationary

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Block of wood kept stationary by the force of friction (Correction made in next video) Class 11 Physics (India) Let's learn, practice, and …