A 105 g wire is held under a tension of 251 N, with one end at a: = 0 and the other at a: = 8.00 m.. (a) At time t = 0, one end of the wire is plucked and released to send a wave pulse down the wire. How long will it take for the wave pulse to reach the other end of the wire? (b) Instead of plucking the wire, a machine is now attached to one end that vibrates the end of the wire back and forth with a period of 2.00 ms (2 milliseconds), producing a sinusoidal wave on the wire. What will the wavelength of this sinusoidal wave be? (c) What frequency would the vibrating machine need to have in order for the wavelength of the resulting sinusoidal wave to be exactly equal to the length of the string