3) The displacement–time graph for an oscillating pendulum is shown below. If the frequency of the pendulum is 60 Hz, what is the time interval between points a & b? (1 Dgree)
You can attach a screenshot using any free image hosting websites. To determine the time interval, find the period as a reciprocal of frequency (1/60=0.0167 s).
Then, knowing that one complete wavelength is ine full sine wave, and a half of it is half of the period, find the time interval.
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