Two boats are located 20 m apart. The wavelength of the water waves is 2.5 m. One of the boaters counts 15 waves passing him by in a timer of 10 seconds. How much time does it take for a particular wave to travel between boats?
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Expert's answer
2020-05-25T11:18:19-0400
By definition, the frequency of waves is
"\\nu=15\/10 = 1.5 Hz"
If the wavelength of the wave is "\\lambda = 2.5 m", then the speed of wave is:
"v =\\nu\\lambda= 2.5\\cdot1.5 = 3.75 m\/s"
Then covering the distance "l = 20m" between the boards will take:
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