A very noisy chain saw operated by a tree surgeon emits a total acoustic power of 30.0 W uniformly in all directions.

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter17: Sound
Section: Chapter Questions
Problem 36P: A 250-Hz tuning fork is struck and begins to vibrate. A sound-level meter is located 34.00 m away....
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A very noisy chain saw operated by a tree surgeon
emits a total acoustic power of 30.0 W uniformly in
all directions.
Transcribed Image Text:A very noisy chain saw operated by a tree surgeon emits a total acoustic power of 30.0 W uniformly in all directions.
- Part A
At what distance from the source is the sound level equal to 100 dB?
Express your answer in meters.
R1
m
%D
Part B
At what distance from the source is the sound level equal to 55 dB?
Express your answer in kilometers.
?
EXH...
R2 =
km
%3D
Transcribed Image Text:- Part A At what distance from the source is the sound level equal to 100 dB? Express your answer in meters. R1 m %D Part B At what distance from the source is the sound level equal to 55 dB? Express your answer in kilometers. ? EXH... R2 = km %3D
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