College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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(D3) Sound
QIVFN
In most cases, the intensity (or loudness) of a sound decreases with increasing distance. If the sound
wave is free to expand spherically, then the relationship between intensity and distance is as given in the
diagram. Suppose the sound intensity 31 m from a jet engine is 95 W/m². Then find the intensity 56 m
from the engine.
Source
or 1₁² = 1₂2
71
12
8.
1₁
1₂
A.
33.92 W/m²
D. 29.11 W/m²
35.18 W/m²
B.
30.35 W/m²
E.
C.
31.53 W/m²
F.
32.5 W/m²
1--1
QIVIG
At the peak temperature on a sunny but cold day, the speed of sound in air was measured to be about
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Transcribed Image Text:(D3) Sound QIVFN In most cases, the intensity (or loudness) of a sound decreases with increasing distance. If the sound wave is free to expand spherically, then the relationship between intensity and distance is as given in the diagram. Suppose the sound intensity 31 m from a jet engine is 95 W/m². Then find the intensity 56 m from the engine. Source or 1₁² = 1₂2 71 12 8. 1₁ 1₂ A. 33.92 W/m² D. 29.11 W/m² 35.18 W/m² B. 30.35 W/m² E. C. 31.53 W/m² F. 32.5 W/m² 1--1 QIVIG At the peak temperature on a sunny but cold day, the speed of sound in air was measured to be about
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