Worksheet: Energy and Power of Waves on a String
In this worksheet, we will practice calculating the average power transmitted by mechanical waves on a taut string.
A wave on a string is driven by a string vibrator, which oscillates at a frequency of 100.00 Hz and an amplitude of 1.00 cm. The string vibrator operates at a voltage of 12.00 V and a current of 0.200 A. The power consumed by the string vibrator is . Assume that the string vibrator is 90.0% efficient at converting electrical energy into the energy associated with the vibrations of the string. The string is 3.00 m long and is under a tension of 60.00 N. What is the linear mass density of the string?
- A kg/m
- B kg/m
- C kg/m
- D kg/m
- E kg/m