Answer
$P=282.6W$
Work Step by Step
Since, Intensity level is 110 dB,
$110=10log\frac{I}{10^{-12}}$
Thus, $I=0.1$
So, $\frac{P}{4\times3.14\times15^{2}}=0.1$
$P=282.6W$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Chapter 14 - Sound - Learning Path Questions and Exercises - Exercises - Page 524: 32
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