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28-12-2016
Physics

contestada

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

Respuesta :

Nirina7 Nirina7

05-01-2017

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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