Question: A person that is 2 0 0 m below a jet passing overhead hears the roar of the engine, whips out their phone and meaasures

A person that is 200m below a jet passing overhead hears the roar of the engine, whips out their phone and meaasures that the sound is 55 dB.(a) what is the total sound energy emitted by the plane engines? and (b) how many dB would the sound be at if you were just 2
m away from the engines?

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