Two streams of air mix in a constant-area mixing tube. The primary stream enters the mixing tube at station 1 CD with a velocity of 1000 [L Isee and a temperature of ISOOOR. The secondary stream enters with velocity 100 ft/ sec and temperature 50QOR. The flow at stations; and 21) may be assumed one-d imensional. The sure at s(ationc s 15 psia and the ratio or primary to secondary flow areas at station 1 is 1:3 Primary Secondary PROBLEM 13 (a) Using continuity, momentum, and energy equations, along with the perfect-gas law, show how the flow at 2 may be determined from conditions at. (b) Determine the velocity, temperature, and pressure at station (2)