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A fireworks rocket explodes at a height of 125 m above the ground. An observer on the ground directly under the explosion
experiences an average sound intensity of 6.85 x 10-2 w/m? for 0.190 s.
(a) What is the total amount of energy transferred away from the explosion by sound?
k)
(b) What is the sound level in decibels heard by the observer?
dB

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