The cylinder has a mass of 30 kg and is mounted on an axle that is supported by bearings at a and b. if the axle is turning at omega = {- 40j} rad/s, determine the vertical components of force acting at the bearings at this instant.

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero