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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): š˜¶-substitution: rational function

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Another example of using u-subsitution Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starti…

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Class 11 Physics (India): Vector magnitude from components

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Sal finds the magnitude of a vector given its components of (5, -3). Class 11 Physics (India) Let's learn, practice, and master topics of c…

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Class 11 Physics (India) - Hindi: Choosing kinematic equations (Hindi)

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How to set up problems with constant acceleration and choose the best kinematic equation to solve for the target unknown. Class 11 Physics …

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Class 11 Physics (India): Finding height of fluid in a barometer

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Using our understanding of fluid pressure to figure out the height of a column of mercury. Class 11 Physics (India) Let's learn, practice, …

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Class 12 Physics (India): Electric motors (part 2)

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Sal shows that a commutator can be used in order to keep the loop of wire rotating in the magnetic field. Class 12 Physics (India) It is no…

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Physics: Electrolyte test (pure water vs. vinegar)

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First we attach our galvanometer to a piece of copper and zinc. Then we submerge the metals in pure water and vinegar. What is the differen…

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Health and medicine: Laryngomalacia

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Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

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Physics: Build a ping pong ball launcher

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This project shows you how to build a ping pong and test an adjustable ping pong ball launcher. Physics Learn about the basic principles th…

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Electrical engineering: Install on/off switches

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Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…

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Health and medicine: Anemia pathophysiology

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Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

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Class 11 Physics (India) - Hindi: Standing waves in open tubes (Hindi)

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Find out why a flute makes such specific notes. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi vid…

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Health and medicine: Sinusitis diagnosis and treatment

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Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

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Health and medicine: What is staphylococcal enteritis?

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Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…

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Class 11 Physics (India): Thermal energy from friction

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In this video David shows how to find the energy generated by the force of friction and solves an example conservation of energy problem in…

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Physics: Loop de loop question

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Asks students to find the minimum speed necessary to complete the loop de loop Physics Learn about the basic principles that govern the phy…