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

What precautions should you take to prevent injuries when dealing with heavy loads?

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.