Answer: A piano wire with mass 3.00 g and length 80.0 cm

Chapter 15, Problem 22E

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QUESTION:

Problem 22E

A piano wire with mass 3.00 g and length 80.0 cm is stretched with a tension of 25.0 N. A wave with frequency 120.0 Hz and amplitude 1.6 mm travels along the wire. (a) Calculate the average power carried by the wave. (b) What happens to the average power if the wave amplitude is halved?

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QUESTION:

Problem 22E

A piano wire with mass 3.00 g and length 80.0 cm is stretched with a tension of 25.0 N. A wave with frequency 120.0 Hz and amplitude 1.6 mm travels along the wire. (a) Calculate the average power carried by the wave. (b) What happens to the average power if the wave amplitude is halved?

ANSWER:
Step 1 of 3

We have to calculate the average power of the wave on string.

The average power of wave moving on string is given by

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