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The United States Patent and Trademark Office rejects

Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt ISBN: 9780321909107 29

Solution for problem 45E Chapter 18

Conceptual Physics | 12th Edition

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Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

Conceptual Physics | 12th Edition

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Problem 45E

The United States Patent and Trademark Office rejects claims for perpetual motion machines (in which energy output is as great or greater than energy input) without even investigating them. Why is this?

Step-by-Step Solution:
Step 1 of 3

Chapter 1 ­ Introduction  Physics o The study of nature  The Domains of Physics o Microscopic Domain  The domain of atoms, molecules, electrons, protons, pion and mesons, etc.  Extreme small in mass  Uncertainty of physical properties  Unpredictable behavior o Macroscopic Domain  The domain of man, house, car, ball, even a planet  Daily life experiences  Physics experienced on earth  Governed by gravity, Newton's Laws (orbit)  Predictable behavior o Galactic Domain  The domain of galaxies and their clusters characterized by huge masses and high velocities  Black holes  Relativity  Uncertainty of physical properties  Three Fundamental Quantities o Length  The spatial distance between two points o Mass  Measure of an object's resistance to a change in its motion (Inertia)  Different from weight!  Mass has no direction, therefore it is a Scalar Quantity o Time  Is realized by change  All other physical quantities can be constructed from these three fundamental quantities o Example: length  Speed or Velocity is a quantity

Step 2 of 3

Chapter 18, Problem 45E is Solved
Step 3 of 3

Textbook: Conceptual Physics
Edition: 12
Author: Paul G. Hewitt
ISBN: 9780321909107

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The United States Patent and Trademark Office rejects