max A firework charge is detonated many meters above the ground. At a distance of d = 490 m from the explosion, the acoustic pressure reaches a maximum of AP = 10.0 Pa (see figure below). 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 d = 4.60 103 m from the explosion? dB -d2-