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## Water waves in a shallow dish are 7.0 cm long. At one point, the water moves up and down at a rate of 4.0 oscillations per second. (a) What

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## Answers ( )

Answer:0.28 m/sExplanation:From the equation of a moving wave,

V = λf……………… Equation 1

Where V = speed of the water wave, λ = wave length of the water wave, f = frequency of the water wave.

Given: λ = 7.0 cm = 0.07 m, f = 4 Hz.

Substitute into equation 1

V = 0.07(4)

V = 0.28 m/s.

Hence the speed of the water wave = 0.28 m/s