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Chery Chery
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7 years ago Edited: 2 years ago, bio_man
Two motors in a factory are running at slightly different rates. One runs at 825.0 rpm and the other at 786.0 rpm. You hear the sound intensity increase and then decrease periodically due to wave interference. How long does it take between successive instances of the sound intensity increasing?
A) 1.54 s
B) 1.43 s
C) 1.66 s
D) 1.79 s
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College Physics

College Physics


Edition: 1st
Authors:
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lyalllyall
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7 years ago Edited: 2 years ago, bio_man
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Chery Author
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#2
7 years ago
You're right again!

Appreciate it
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#3
4 years ago
Thx
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Danke
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3 years ago
Happy to help I am Physics teacher
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SCAM
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#7
2 years ago
THx
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