How much sound power will strike the eardrum of an airport, Ask an Expert

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Q. The decibel level of the noise from a jet aircraft is 130 dB when measured 15.3 m from the aircraft.

(a) How much sound power does the jet aircraft emit?

(b) How much sound power would strike the eardrum of an airport worker 15.3 m from the aircraft? (Use 1.9 10-2 m as the diameter of the ear.)

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