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December 22, 2014

Homework Help: physics

Posted by me on Sunday, March 11, 2012 at 6:34pm.

A person, with his ear to the ground, sees a huge stone strike the concrete pavement. A moment later two sounds are heard from the impact: one travels in the air and the other in the concrete, and they are 1.7 s apart. How far away did the impact occur?

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