A large vessel vents when the enclosed air (R = 287 J/kgK and γ = 1.4) reaches a pressure of 25 bar and a temperature of 400 K. The venting system can be approximated by a pipe 6 m long and 20 mm in diameter, followed by a choked convergent nozzle with a throat diameter of 12 mm. The friction factor for the pipe is 0.005. Determine: (a) the two possible Mach numbers at the nozzle inlet, based on the