3. For each of the following, calculate the frequency, in hertz, and the period, in seconds:
(a) a pendulum swinging 20 times per minute
(b) a car engine rotating at 8000 rpm's (revolutions per minute)
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3. For each of the following, calculate the frequency, in hertz, and the period, in seconds:
(a) a pendulum swinging 20 times per minute
(b) a car engine rotating at 8000 rpm's (revolutions per minute)
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Answer:
b..a car engine rotating at 8000 rpm's (revolutions per minute)
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