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Physics 11 Online
OpenStudy (anonymous):

The intensity I of a sound at a point P is inversely proportional to the square of the distance x of P from the source of the sound. Air Molecules at P, a distance r from S, oscillate with amplitude 8.0 um. Point Q is situated a distance 2r from S. What is the amplitude of oscillation of air molecules at Q? *See Diagram Below.

OpenStudy (aravindg):

diagram please?

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