Fig. p3.9, p3.10, and p3.11 it is known that a force with a moment of 960 n m about d is required to straighten the fence post cd. if the capacity of winch puller ab is 2400 n, determine the minimum value of distance d to create the specified moment about point d.

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature