Question

A small steel wire of diameter 1.3 mm is connected to an oscillator and is under a tension of 5.1 N . The frequency of the oscillator is 55.0 Hz and it is observed that the amplitude of the wave on the steel wire is 0.56 cm .

a) What is the power output of the oscillator, assuming that the wave is not reflected back?

P = ... W

b) If the power output stays constant but the frequency is doubled, what is the amplitude of the wave?

A = ... m

Express your answer using two significant figures

Answer #1

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