An outside loudspeaker (considered a small source) emits sound waves with a power output of 107 W. (a) Find the intensity 12.4 m from the source. W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB?
An outside loudspeaker (considered a small source) emits sound waves with a power output of 107 W. (a) Find the intensity 12.4 m from the source. W/m2 (b) Find the intensity level in decibels at that distance. dB (c) At what distance would you experience the sound at the threshold of pain, 120 dB?
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter16: Waves
Section: Chapter Questions
Problem 87P: A 250-Hz tuning fork is struck and the intensity at the source is I1at a distance of one meter from...
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