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The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent...

The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 1.30 g is supported by a needle, the tip of which is a circle 0.240 mm in radius, what pressure is exerted on the record in N/m2?

______N/m2

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Answer #1

solution: e The pressure of force act on an area 1 đ Then on A = 102 sy to (0.24 mm) (inom) A = 18.096 X10 m2 of substitute F

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