sinusoidal wave of angular frequency 1205 rad/s and amplitude3.20 mm is sent along a cord with linear density 2.10 g/m andtension 1233 N. (a) What is the average rate atwhich energy is transported by the wave to the opposite end of thecord? (b) If, simultaneously, an identical wavetravels along an adjacent, identical cord, what is the totalaverage rate at which energy is transported to the opposite ends ofthe two cords by the waves? If, instead, those two waves are sentalong the same cord simultaneously, what is the totalaverage rate at which they transport energy when their phasedifference is (c) 0, (d)0.6? rad, and (e)? rad?
I figured everything out except part d