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Assuming that the air density is 1.29 kg/m3 and the sound speed at 20C is 343 m/s, (a) what is the maximum displacement of the

Assuming that the air density is 1.29 kg/m3 and the sound speed at 20C is 343 m/s, (a) what is the maximum displacement of the air molecules when a sound wave of 330 Hz passes and with an intensity at the pain threshold, 120 dB; and (b) what is the pressure amplitude in this wave? Please no hand writing solution for other wise down vote

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