The pressure exerted by a phonograph needle on a record is surprisingly large, due to the very small width of the needle. If the equivalent of 0.85 g is supported by a needle, the tip of which is a circle 0.195 mm in radius, what pressure is exerted on the record, in pascals?

The pressure exerted by a phonograph needle on a record is surprisingly large, due to the very small width of the needle. If the equivalent of 0.85 g is supported by a needle, the tip of which is a circle 0.195 mm in radius, what pressure is exerted on the record, in pascals?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter15: Fluid Mechanics

Section: Chapter Questions

Problem 23P: A table-tennis ball has a diameter of 3.80 cm and average density of 0.084 0 g/cm3. What force is...

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