A480-v, 60-hz, 6-pole, y-connected, three-phase induction motor has a stator impedance of 0.2 + j0.43 ohm per phase and a rotor impedance of 0.04 +j0.7 ohm per phase at standstill. the core-loss resistance is 150 ohm/phase, and the magnetization reactance is 760 ohm/phase. the friction and windage loss is 2500w. when the motor operates at its full-load slip of 7%, determine 1. the power input 2. the stator copper loss 3. the rotor copper loss 4. the air-gap power 5. the power developed 6. the power output 7. the efficiency 8. the shaft torque 9. the horsepower rating of the motor.