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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 10 Physics (India): Convex & concave mirror ray diagrams

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Let's explore the ray tracing technique to figure out the properties of images when things are kept in front of a concave or a convex mirro…

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Chemistry: Standard reduction potentials

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How to use a table of standard reduction potentials to calculate standard cell potential. Identifying trends in oxidizing and reducing agen…

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Electrical engineering: Application of the fundamental laws (solve)

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We solve the equations created by direct application of the fundamental laws: Ohm's Law and Kirchhoff's Laws. (Part 2 of 2) Electrical engi…

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Class 11 Physics (India): Tangent identities: symmetry

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Sal finds several trigonometric identities for tangent by considering horizontal and vertical symmetries of the unit circle. Class 11 Physi…

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Health and medicine: Bronchiolitis diagnosis

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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): Addition and subtraction with significant figures

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Learn to add and subtract with significant figures. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (…

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Class 12 Physics (India): Minority charge carriers in extrinsic semiconductors

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When we add impurities to semiconductors, what happens to minority charge carriers? Do they remain the same? In this video, we will explore…

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Health and medicine: Arteriosclerosis, arteriolosclerosis, and atherosclerosis

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Learn the difference between Arteriosclerosis, Arteriolosclerosis, and Atherosclerosis! Rishi is a pediatric infectious disease physician a…

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Health and medicine: Pathophysiology of herpes

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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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Health and medicine: Preventing an HIV infection

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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 12 Physics (India): Coulomb's Law

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Sal explains the fundamental force that causes charged particles to attract or repel each other Class 12 Physics (India) It is now time to …

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Physics: Thin lens equation and problem solving

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Some examples of using the thin lens equation Physics Learn about the basic principles that govern the physical world around us. Solid unde…

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Class 11 Physics (India): Unbalanced forces and motion

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Thinking about what is true about how unbalanced forces relate to motion and acceleration Class 11 Physics (India) Let's learn, practice, a…

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Class 11 Physics (India) - Hindi: Intro to thermal expansion (Hindi)

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Things expand on heating, but why? Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi videos, we've cr…

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Class 12 Physics (India): Mass spectrometer

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Class 12 Physics (India) It is now time to dive deeper into the world of physics with topics from class 12 (NCERT) such as electrostatics, …