A Wave is traveling at 36 m/s. If its wavelength is 12 m, how many times does a wavelength move across a set point every second? one time
three times
twelve times
thirty-six times

3 times.

Explanation:

Using the rquation:

v = f\

Where \ is wavelength.

f = v/ wavelength

f = 36/12

f = 3 Hz.

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