Asailor is being rescued using a boatswain's chair that is suspended from a pulley that can roll freely on the support cable acb and is pulled at a constant speed by cable cd. knowing that alpha = 30 degree and beta = 10degree and that the combined weight of the boatswain's chair and the sailor is 900 n, determine the tension (a) in the support cable acb, (b) in the traction cable cd.

Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 k, 1 bar, with a volumetric flow rate of 0.25 m°/s, and exits at 325 k, 0.95 bar. the flow area is 0.04 m2. assuming the ideal gas model with k = 1.4 for the air, determine (a) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer, in kw flow rate, in kg/s, (b) the mass kg 0.3