Two rooms are separated by a wall that is wood panel, r= 0.93 (usual units) on one side, with fiberglass insulation r = 13.0 between the walls and wall board r = 0.46 on the other. one room is air conditioned at 74 deg. f and the room is not air conditioned at 92 deg. f. film coefficients are r = 0.68 on both walls. what is the heat transfer rate from the warm room to the cool room? neglect the heat transfer reduction by the wall studs.

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms