What is the minimum weight (W1) required to hold the block (M2) static on the ramp, if the ramp is inclined 30 degrees and the coefficient of friction between the block and the ramp is 0.5? Assume the pulley is frictionless.

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