COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 13, Problem 109QAP
To determine
(a)
The maximum displacement of the air molecules produced by the waves.
To determine
(b)
The energy delivered by the wave to a 2.0 m by 3.0 m wall in 1.0 min.
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Many natural phenomena produce very high-energy, but inaudible, sound waves at frequencies below 20 Hz (infrasound). During the 2003 eruption of the Fuego volcano in Guatemala, sound waves of frequency 6.0 Hzwith a sound level of 120 dB were recorded. Assume the density of air is 1.2 kg/m3.
What was the maximum displacement ?A of the air molecules produced by the waves and how much energy ? would such a wave deliver to a 2.0 m by 4.0 m wall in 1.0 min?
Chapter 13 Solutions
COLLEGE PHYSICS
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