Question

A loudspeaker driver 25.0 cm in diameter is vibrating at 880 Hz with an amplitude of...

A loudspeaker driver 25.0 cm in diameter is vibrating at 880 Hz with an amplitude of 0.0220 mm.

(a) Assuming that the air molecules in the vicinity have this same amplitude of vibration, find the pressure amplitude immediately in front of the diaphragm.
N/m2

(b) Find the sound intensity.
W/m2

(c) Find the acoustic power being radiated.
W

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Homework Answers

Answer #1

Note that pressure amplitude unit is in Pascal

that can simply re written as N/m2

Pressur amplitue = 5.1260*104 N/m2

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