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5 votes
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?

User Nikolin
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2 Answers

5 votes
frequency is the number of waves divided by the time
SO...
5 waves/2 s = 2.5 Hz (Hz being the unit of frequency)
User Stepan Grigoryan
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2 votes
the wave Frequency is 2.5 and then the units if those are required 
User Hien Tran
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