At what depth will pressure in a straight cylindrical powder compact of 10 mm diameter become

(i) zero, and
(ii) one-half of the punch pressure?
Assume that the powders are being compacted using single-action compaction. Given: radial-to-axial stress ratio=0.5, friction coefficient=0.3.

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

Fluids at rest possess no flow energy. a)- true b)- false