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Determine the speed of transverse waves on

a string under a tension of 73 N if the string

has a length of 2.1 m and a mass of 5.9 g

Answer= 161.1925893 m/s

I have a problem with the second part of the question:

Calculate the power required to generate

these waves if they have a wavelength of 29 cm

and an amplitude of 7.3 cm. Answer in units

of kW.

2. Velocity= Square Root [Tension/(mass/length)]

Energy= 2 pi^2 mf^2 A^2

A-amplitude

m-mass

f- frequency

Power= Energy/time

3. I found the frequency by taking the velocity/wavelength and then found the energy using the above equation. I tried to find a value for time by taking the inverse of the frequency (period) and then plugging the values into P=E/t, but was not correct

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# Homework Help: Power required to generate waves

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