A 480-V, three-phase, four-pole, A-connected, 60-Hz induction motor is running at a slip of 0.035 (i.e., 3.5 percent). Compute the following:
a. Speed of the magnetic fields in revolutions per minute
b. Speed of the rotor in revolutions per minute
c. Slip speed of the rotor
d. Rotor frequency in hertz