Question

A  wave of sinusoidal form has a frequency 1275 rads/s and a amplitude of 2.75 mm propagates along a cable with linear density of 2.35 g/m and tension 1245N

(a) The average rate energy is moved by the wave to the opposite end of the cable is?

(b) An identical wave, simultaneously travels along an adjacent identical cable, what is the total average rate at which energy is moved to the opposite ends of the two cables by the waves? Alternatively, the two waves are sent along the same cable simultaneously, what is the total average rate at which they move energy when they have a phase difference of

(c) 0 rad?

(d) .35 π rad?

(e) .85 π rad?

(f) π rad?

Answer 1