# physics

The distance between successive crests in a series of water waves is 5.0m; the crests travel 8.6m in 5.0s . Calculate the frequency of a block of wood bobbing up and down in the water

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1. wavelength = speed * period
5 = (8.6/5) * period
period = 25/8.6 = 2.9 seconds
frequency = 1/period = .344 Hz

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