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Principles of Analog Electronics
book

Principles of Analog Electronics

by Giovanni Saggio
January 2014
Intermediate to advanced content levelIntermediate to advanced
567 pages
23h 13m
English
CRC Press
Content preview from Principles of Analog Electronics
Principles of Analog Electronics
54
Mechanical waves are often called audio waves, but this expression is inappro-
priate since audio waves are only a subset of mechanical waves. Audio waves are
those within the frequency range audible to humans. Mechanical waves that have
a frequency lower than the audible range are named infrasonic and those that are
a higher frequency are named ultrasonic.
The propagation speed of a mechanical wave varies according to the material in
which it propagates. For example, in air it has a speed of about 340 m/s = (1224 km/h),
in water about 1480 m/s, in soil about 3000 m/s, in steel around 5050 m/s,
andsoon.
Two ...
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Publisher Resources

ISBN: 9781466582026