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April 20, 2014

Homework Help: Physics HELP!!

Posted by rory on Saturday, November 24, 2012 at 11:48am.

The sound intensity of 1.2x10-12J/m2s is the threshold of hearing for humans. What is the amplitude of the motion of the air molecules if the speed of sound in the air is 343m/s and the density of air is 1.28kg/m^3? Take the frequency of the air molecules as 1000 Hz

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