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Q. Sit on a rotating chair. Slowly twist your body in one direction and then rapidly twist it in the other. What is going to happen? Is angular momentum conserved and if not why?

Q. An electron moving in a direction perpendicular to a uniform magnetic field at a speed of 3.2x10^7 m/s undergoes an acceleration of 5.0x 10^16 m/s2 to the right (the positive x-direction) when its velocity is upward (the positive y-direction). Determine the magnitude and direction of the field.

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Category:- Physics
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