Air enters a converging-diverging nozzle of a supersonic wind tunnel at 1000 kPa and 35oC with a

Question:

Air enters a converging-diverging nozzle of a supersonic wind tunnel at 1000 kPa and 35oC with a low velocity. The flow area of the test section is equal to the exit area of the nozzle, which is 0.5 m2. Determine
(a) Velocity (V) and
(b) The mass flow rate (m) in the test section where M = 2.