fkc9atiArgrld fkc9atiArgrld

28-12-2016
Physics

Answered

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?

A5.0 Hz
B2.5 Hz
C10 Hz
D2.0 Hz

Verified Answer :

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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