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28 March, 00:57

Amy counts the wave crests traveling down a stretched string. Five wave crests pass Amy in two seconds. What is the frequency of the wave?

A. 5.0 Hz

B. 2.5 Hz

C. 10 Hz

D. 2.0 Hz

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Answers (1)
  1. 28 March, 01:18
    0
    The frequency is 5 wave crests / 2 seconds = 5 crests / 2s=2.5c/s

    so it is B. 2.5 Hz
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