During sheet metal bending, springback is the increase in bend angle and the increase in bend radius. the increase in bend angle and the decrease in bend radius. the decrease in bend angle and the increase in bend radius. the decrease in bend angle and the decrease in bend radius. none of the above

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