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A wave of sinusoidal form has a frequency of 1277 rads/s and an amplitude of 2.6...

A wave of sinusoidal form has a frequency of 1277 rads/s and an amplitude of 2.6 mm propagates along a cable with linear density of 2.4 g/m and tension 1250N.

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

(b) an identical wave simultaneously travels along an adjacent 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 0 rad, .36pi rad, .86pi rad, pi rad?

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