Ajet craft traveling at a velocity of 700 ft/s takes in air at a rate of 1.68slugs/s. the air: fuel ratio is 20: 1, and the exhaust velocity relative to the jet is 2105 ft/s. determine the thrust produced by the jet engine

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.