A200 g, 20 cm diameter plastic disk is spun on an axle through its center by an electric motor. what torque must the motor supply to take the disk from 0 rpm to 1800 rpm in 4.0s?

Which governments provide garbage collection services to homes and businesses

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples

The law of reflection states that the angle of reflection is equal to the angle of