After an unfortunate accident occurred at a local warehouse, you were contracted to determine the cause. A jib crane collapsed and injured a worker. The horizontal steel beam had a mass of 85.10 kg per meter of length, and the tension in the cable was =12040 N. The crane was rated for a maximum load of 500 kg. If =5.000 m, =0.450 m, =2.000 m, and ℎ=2.250 m, what was the magnitude of L (the load on the crane) before the collapse? The acceleration due to gravity is =9.810 m/s2.

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)