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Classical Mechanics, Second Edition, 2nd Edition
book

Classical Mechanics, Second Edition, 2nd Edition

by Tai L. Chow
May 2013
Intermediate to advanced content levelIntermediate to advanced
639 pages
23h 12m
English
CRC Press
Content preview from Classical Mechanics, Second Edition, 2nd Edition
214 Classical Mechanics
© 2010 Taylor & Francis Group, LLC
A heavily damped system loses its energy rapidly, and its Q is low. For a lightly damped
oscillator, Q ω
0
/2β and is much greater than 1. A tuning fork has a Q of a thousand or so;
an undamped oscillator has innite Q.
In summary, light damping slightly reduces the frequency of an oscillator and intro-
duces a decay factor exp(–βt) in the amplitude. The average energy also decays exponen-
tially, losing a fraction of its value per unit of time.
Example 7.2
A musician’s tuning fork rings at A above middle C, 440 Hz. A sound-level meter indicates that
the sound intensity decreases by a ...
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Publisher Resources

ISBN: 9781466569980