Answer:
The average power is 0.1570 W.
Explanation:
Given that,
Mass of piano wire = 3.50 g
Length = 83.0 cm
Tension = 35.0 N
Frequency = 120 Hz
Amplitude = 1.20 mm
Suppose we need to calculate the average power carried by the wave
We need to calculate the angular frequency
Using formula of frequency
We need to calculate the linear density
Using formula of linear density
Put the value into the formula
We need to calculate the average power
Using formula of average power
Put the value into the formula
Hence, The average power is 0.1570 W.