Very Easy Question but need help!!!!


label Physics
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An auto CD rotates at 480 rpm (rev/min).  What is the period and frequency of the CD?

Feb 12th, 2015

Frequency = 480 cycles / min = 8 cycles / sec

Period = 2pi / frequency = 2pi / 8 = pi / 4 seconds

Feb 12th, 2015

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Feb 12th, 2015
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Feb 12th, 2015
Nov 22nd, 2017
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