The freauency of waves is given in:
a. nodes per second
b. graphs
c. waves per second
d. cycles per second

Given this definition, it is reasonable that the quantity frequency would have units of cycles/second, waves/second, vibrations/second, or something/second. Another unit for frequency is the Hertz (abbreviated Hz) where 1 Hz is equivalent to 1 cycle/second.

D.) Cycles per second

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