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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): Moments (part 2)

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2 more moment problems. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinemat…

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Class 11 Physics (India) - Hindi: Angular motion variables (Hindi)

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Ram explains the meaning of angular displacement, angular velocity, and angular acceleration. Class 11 Physics (India) - Hindi To help stud…

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Class 11 Physics (India): Introduction to gravity

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Basics of gravity and the Law of Universal Gravitation Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physic…

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Chemistry: Electrolysis of molten sodium chloride

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Example quantitative electrolysis problem using molten sodium chloride. Chemistry Did you know that everything is made out of chemicals? Ch…

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Electrical engineering: Data wires

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data wires allow you to send values directly from input sensors to output devices Electrical engineering Learn about electricity, circuit t…

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Class 11 Physics (India) - Hindi: Work and energy part 2 (Hindi)

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More on work. Introduction to Kinetic and Potential Energies. Class 11 Physics (India) - Hindi To help students who prefer to learn by watc…

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Health and medicine: The lymphatic system's role in immunity

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Learn about how B and T cells reside in lymph nodes. Find out how that enables them to get a preview of what they need to be prepared to fi…

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Class 11 Physics (India) - Hindi: Distance or arc length from angular displacement (Hindi)

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Relating angular displacement to distance traveled or arc length. Class 11 Physics (India) - Hindi To help students who prefer to learn by …

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Electrical engineering: Feedback

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Feedback is the design technique where a part of the amplifier output "feeds back" to the input of the amplifier. The overall effect create…

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Class 11 Physics (India) - Hindi: Rolling without slipping (Hindi)

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Ram explains how to solve problems where an object rolls without slipping. Class 11 Physics (India) - Hindi To help students who prefer to …

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Class 12 Physics (India): Specular and diffuse reflection 2

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Specular and Diffuse Reflection 2 Class 12 Physics (India) It is now time to dive deeper into the world of physics with topics from class 1…

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Organic chemistry: E2 mechanism: kinetics and substrate

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Mechanism of an E2 elimination reaction. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic unde…

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Health and medicine: Changing glomerular filtration rate

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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): Vectors word problem: pushing a box

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Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinematics and then moving to d…

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Physics: Compass: Which way is north?

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how would you know which way is north if you had no reference? Can the direction of stroke alone tell you this? Are you sure? Physics Learn…