A 100 W beam of light is shined onto a blackbody of mass 2 x 10 -3

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A 100 W beam of light is shined onto a blackbody of mass 2 x 10^-3 kg for 10⁴ s. The blackbody is initially at rest in a frictionless space.

(a) Compute the total energy and momentum absorbed by the blackbody from the light beam,

(b) Calculate the blackbody’s velocity at the end of the period of illumination, and

(c) Compute the final kinetic energy of the blackbody. Why is the latter less than the total energy of the absorbed photons?

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Modern Physics

ISBN: 9781429250788

6th Edition

Authors: Paul A. Tipler, Ralph Llewellyn

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Question Posted: Feb 03, 2023 04:57 AM

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A 100 W beam of light is shined onto a blackbody of mass 2 x 10 -3

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a b c The difference in energy has been i ...View the full answer

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