By measurement you determine that sound waves are spreading out equally in all directions from a point

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By measurement you determine that sound waves are spreading out equally in all directions from a point source and that the intensity is 0.026 W 1m2 at a distance of 4.3 m from the source.
(a) What is the intensity at a distance of 3.1 m from the source?
(b) How much sound energy does the source emit in one hour if its power output remains constant?
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Calculus Early Transcendentals

ISBN: 9781337613927

9th Edition

Authors: James Stewart, Daniel K. Clegg, Saleem Watson, Lothar Redlin

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