A firework charge is detonated many meters above the
Chapter 17, Problem 33(choose chapter or problem)
A firework charge is detonated many meters above the ground. At a distance of d1 5 500 m from the explosion, the acoustic pressure reaches a maximum of DPmax 5 10.0 Pa (Fig. P17.33). 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 5 4.00 3 103 m from the explosion?
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