A loudspeaker at a rock concert generates 102 W/m2 at 20 m at a frequency of 1
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A loudspeaker at a rock concert generates 102 W/m2 at 20 m at a frequency of 1 kHz. Assume that the speaker spreads its energy uniformly in three dimensions.
(a) What is the total acoustic power output of the speaker?
(b) At what distance will the intensity be at the pain threshold of 1 W/m2?
(c) What is the intensity at 30 m?
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Related Book For
Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
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