A low-wing airplane has an equivalent flat-plate area of 8 ft2, a wing loading of 20 psf, an aspect ratio of 7.0, and a gross weight of 5000 Ib. Calculate its minimum drag and corresponding speed at SSL and 10,000 ft altitude.

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