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A puck of mass m 5 50.0 g is attached to a taut cord

Physics for Scientists and Engineers with Modern Physics | 9th Edition | ISBN: 9781133954057 | Authors: Raymond A. Serway John W. Jewett ISBN: 9781133954057 230

Solution for problem 52 Chapter 11

Physics for Scientists and Engineers with Modern Physics | 9th Edition

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Physics for Scientists and Engineers with Modern Physics | 9th Edition | ISBN: 9781133954057 | Authors: Raymond A. Serway John W. Jewett

Physics for Scientists and Engineers with Modern Physics | 9th Edition

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Problem 52

A puck of mass m 5 50.0 g is attached to a taut cord passing through a small hole in a frictionless, horizontal surface (Fig. P11.52). The puck is initially orbiting with speed vi 5 1.50 m/s in a circle of radius ri 5 0.300 m. The cord is then slowly pulled from below, decreasing the radius of the circle to r 5 0.100 m. (a) What is the pucks speed at the smaller radius? (b) Find the tension in the cord at the smaller radius. (c) How much work is done by the hand in pulling the cord so that the radius of the pucks motion changes from 0.300 m to 0.100 m?

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Let there be light! 1 History: Maxwell thought that vacuum is a medium Hence strange notations (permittivitpermeability of free space ε0and µ0 1 µ = 0 0 c2  Prediction: speed of light should vary depending on our velocity with respect to aether vapparent = V train − V man/train 2 Michelson-Morley experiment The most famous failed experiment Motion through aether 3 Michelson-Morley

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Chapter 11, Problem 52 is Solved
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Textbook: Physics for Scientists and Engineers with Modern Physics
Edition: 9
Author: Raymond A. Serway John W. Jewett
ISBN: 9781133954057

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A puck of mass m 5 50.0 g is attached to a taut cord