If the allowable bearing stress for the material under the supports at a and b is σb = 760 psi, determine the maximum load pmax that can be applied to the beam. the bearing plates each have square cross sections of 5 in. by 5 in. the reactions at the supports are vertical. assume w = 600 lb/ft, a = 12 ft, and b = 6 ft.

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?