A firework charge is detonated many meters above the ground. At a distance of d1 = 500 m from the explosion, the acoustic pressure reaches a maximum of ΔPmax = 10 Pa. Assume the speed of sound is constant at 343 m/s throughout the atmosphere over the region considered, the ground absorbs all the sound falling on it, and the air absorbs sound energy as described by the rate 7.00 dB/km. What is the sound level (in decibels) at a distance of d2 = 4.00x103 m from the explosion?

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter13: Mechanical Waves
Section: Chapter Questions
Problem 31P: Write an expression that describes the pressure variation as a function of position and time for a...
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A firework charge is detonated many meters above the ground. At a distance of
d1 = 500 m from the explosion, the acoustic pressure reaches a maximum of
ΔPmax = 10 Pa. Assume the speed of sound is constant at 343 m/s throughout the
atmosphere over the region considered, the ground absorbs all the sound falling on
it, and the air absorbs sound energy as described by the rate 7.00 dB/km. What is the
sound level (in decibels) at a distance of d2 = 4.00x103 m from the explosion?

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