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August 20, 2014

Homework Help: Physics

Posted by Kristina on Friday, February 11, 2011 at 3:12pm.

At a height of 15 meters above the surface of a lake, a sound pulse is generated. The echo from the bottom of the lake returns to the point of origin 0.150 s later. The air and water temperatures are 20C. How deep is the lake?

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