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November 21, 2014

Homework Help: physics ..PLEASE HELP ASSIGN DUE SOON :(

Posted by joane on Monday, November 26, 2012 at 5:25pm.

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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