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OpenStudy (anonymous):
if the period of a wave is 20 s then what is its frequency? A. 0.05 Hz B. 2.0 Hz C. 10 Hz D. 20 Hz
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OpenStudy (michele_laino):
it is simple, the frequency is: f=1/20=...Hz
OpenStudy (anonymous):
oh! so 0.05 Hz?
OpenStudy (michele_laino):
that's right!
OpenStudy (anonymous):
yay! thank you!!
OpenStudy (michele_laino):
:)
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