College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 8CQ
(a) Does a sound level of zero decibels mean that there is no sound? (b) Is there any physical meaning to a sound having a negative intensity level? What is it? (c) Does a sound intensity of zero mean that there is no sound? (d) Is there any physical meaning to a sound having a negative intensity? Why?
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A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance of 12 m from the source, the
intensity of the sound is 4.2 x 10-³ W/m². What is the total sound power P emitted by the source?
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Chapter 12 Solutions
College Physics (10th Edition)
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