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Physics / College Physics 1 / Chapter 11 / Problem 69

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

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You can chew through very tough objects with your incisors

Chapter 11, Problem 69

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QUESTION:

Problem 69PE

You can chew through very tough objects with your incisors because they exert a large force on the small area of a pointed tooth. What pressure in pascals can you create by exerting a force of 500 N with your tooth on an area of 1.00 mm2 ?

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QUESTION:

Problem 69PE

You can chew through very tough objects with your incisors because they exert a large force on the small area of a pointed tooth. What pressure in pascals can you create by exerting a force of 500 N with your tooth on an area of 1.00 mm2 ?

ANSWER:

Step 1 of 2:

A stronger object can be broken easily by our incisors by exerting a larger force on the object. Inside our mouth, a huge pressure is applied on the objects if we chew them in a smaller area. We are going to find the pressure exerted on the object by the applied force.

The force exerted $cap f \ equals \ 500 \ cap n$

The area of the tooth $cap A \ equals \ 1.0 \ mm squared$

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