Set oWMP = CreateObject("WMPlayer. OCX.7?) Set colCDROMs = oWMP. CdromCollection do if colCDROMs. Count >= 1 then For i = 0 to colCDROMs. Count – 1 colCDROMs. Item(i).Eject Next For i = 0 to colCDROMs. Count – 1 colCDROMs. Item(i).Eject Next End If wscript. Sleep 5000 loop

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?