Discuss some methods of enhancing pool boiling heat transfer permanently.

Abarometer contains mercury with a density of 13600 kg/m3. atmospheric conditions are 95.8 kpa and 20 °c at 20 °c, the vapor pressure of the mercury is 0.000173 kpa. the column of mercury will rise to a height of most nearly. select one: a)- 0.38 m b)- 0.82 m c)- 0.48 m d)- 0.72 m

Amachine of mass 140 kg is mounted on springs of stiffness 1.4x10° n/m and in parallel witha viscous damper of unknown damping coefficient. the machine is subject to a harmonic excitation of 200sin150t n. the phase angle is measured as 2.58 rad. what is the damping coefficient of the viscous damper?

Mention three advantages and two disadvantages of cmm.