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you exert a force of 30N on the head of a thumbtack. the head of the thumbtack has a radius of 5mm. what is the pressure on your tumb?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter13: State Of Matter

Section: Chapter Questions

Problem 74A

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