(a) Calculate the length of the blades of a 1 MW wind turbine. Assume the air density is 1.0 kg/m^3, average wind speed is 15 m/sec, and overall efficiency is 25%.
(b) An ideal solar cell is operating at30°C. The reverse saturation curren is0.15 microAmps and the solar current is constant at 1 A. Determine the open circuit voltage.