The mathematical model for a wave on a tightly stretched wire is y(x, r) = 0.390 sin(9:rt 3::x + f) 4 where x and y are in meters, t is in seconds, and ,u of the wire is 68.5 g/m. (a) Calculate the average rate energy is conveyed along the wire (in W). |:|W (b) What is the energy per cycle of the wave (in J)? |:|J