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A sound wave with an intensity level of 80.6 dB is incident on an eardrum of...

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Physics

A sound wave with an intensity level of 80.6 dB is incident onan eardrum of area 0.600 ✕ 10-4 m2. How muchenergy is absorbed by the eardrum in 4.0 minutes?
µJ?

A source of sound waves of frequency 1.2 kHz is travelingthrough the air at 0.55 times the speed of sound.

(a) Find the frequency of the sound received by a stationaryobserver if the source moves toward her.
Hz
(b) Repeat if the source moves away from her instead.
Hz

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