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August 29, 2015

Homework Help: Physics

Posted by Chris on Wednesday, November 25, 2009 at 9:49pm.

I'm not sure how to calculate this question help me! (Grade 11 Physics)
it's sound intensity... Show me how to do it please! (textbook says answer is 3.5 m)

At close proximity, rustling leaves have a sound intensity of about 1.2 x 10^-11 W/m squared. At what distance is the sound at the threshold of hearing (1.0 x 10^-12 W/m squared

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