Describe some of the physical properties of the material you selected (e. g. weight (heavy/light), appearance, apparent mechanical properties (soft/hard/ductile...etc.). Name, and then describe at least 5 properties.1.One 2.Two 3.Three. Four. Five

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

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.

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