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Physics / College Physics 1 / Chapter 11 / Problem 12

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

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Chapter 11, Problem 12

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QUESTION:

Problem 12PE

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 ?

Questions & Answers

QUESTION:

Problem 12PE

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 ?

ANSWER:

Solution to 12PE

Step 1 of 3

We need to calculate the pressure exerted by the tip of the phonograph needle on the record.

Given,

Mass of the needle,

Radius of the tip of the needle,

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