A piano wire with mass 3.50 g and length 75.0 cm is stretched with a tension of 27.0 N. A wave with frequency 100 Hz and amplitude 1.90 mm travels along the wire. Calculate the average power carried by the wave. Express your answer in watts. What happens to the average power if the wave amplitude is halved? Express your answer in watts.

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A piano wire with mass 3.50 g and length 75.0 cm is stretched with a tension of 27.0 N. A wave with frequency 100 Hz and amplitude 1.90 mm travels along the wire.

Calculate the average power carried by the wave.
Express your answer in watts.
What happens to the average power if the wave amplitude is halved?
Express your answer in watts.
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