A small steel wire of diameter 1.4mmis connected to an oscillator and is under a tension of 6.3N. The frequency of the oscillator is 57.0Hzand it is observed that the amplitude of the wave on the steel wire is0.52cm.A.What is the power output of the oscillator, assuming that the wave is not reflected back?B.If the power output stays constant but the frequency is doubled, what is the amplitude of the wave?