슐 ilearn.sfsu.edu (35 Problem 2 At cruise conditions, air flows into a jet engine at a steady rate of 65 Ibm/sec Fuel enters the engine at a steady rate of 0.60 lbm/sec. The mixture of air and fuel, leave the engine as exhaust gas. The average velocity of the exhaust gas is 1500 ft/sec. The engine exhaust effective cross- sectional area is 3.5 square ft. The density of the exhaust gas is-.lbm/cubic ft. Begin by drawing the schematic. ,Fuai iw 2 つesos 飞iv