Engineering Homework Help

Can you help me understand this Electrical Engineering question?

There is an induction motor with four poles, 460 V, 14.5 hp, 60 Hz, connected in Y, with the following parameters in ohms per phase referred to the stator circuit: R1 = 0.641; X1 = 1.106; R2 = 0.332; X2 = 0.464; XM = 26.3. The mechanical speed of the rotor shaft is 1760 r / min. Find a) The losses in the copper of the stator b) Power in the air gap c) Converted power and d) motor efficiency.