(Drag—low Reynolds number) (a) How fast do small water droplets of 0.06-µm (6 × 10-8 m) diameter fall through the air under standard sea-level conditions? Assume the drops do not evaporate. (b) Repeat the problem for standard conditions at 7000-m altitude.

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

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.

Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.