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July 1, 2015

Homework Help: Physics

Posted by Justin on Sunday, July 14, 2013 at 5:16pm.

The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 1.00 g is supported by a needle, the tip of which is a circle 0.200 mm in radius, what pressure is exerted on the record in N/m2?

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