abcdefghikimnopqrstuvwxyz abcdefghjklmnopqrstuvwxyz abcdefghijklmnop yz A converging nozzle has a throat area of 8.5 x10 m². Given that the stagnation air pressure and abcdefg abcdefgh abcdefgh yz temperature are 185 kPa and 450 K, respectively, and k is 1.4. abcdefghijklmnopqrstuvwxyz abcdefghil mnopqrstuvwxyz abcdefgh abcdefgh yz (a) Determine the critical throat pressure. abcdefghijklmnopqrstuvwxyz mnopqrstuvwxyz nopqrstuvwxyz abcdefgh abcdefgh abcdefgh abcdefghijklmnopqrstuv abcdefghijklmnong abcdefgh abcdefghijklmnopqrstuvwx abcoefghijklmnopqrstu abcdefghijkimnopqrstuvwxyz abcdefghijklmnopqrstuv yz (b) Determine the exit Mach number, exit pressure and mass flow if the back pressure is 115 abcdefg abcdefgh abcdefgh wwxyzkPa. State whether the flow is choked or not. abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrs abcdefgh abcdefghijklmnopqrstuvw abcdefgh abcdefgh abcdefgh abcdefgh mnopqrstuvwxyz mnopqrstuvwxyz klmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz abcdefghijkimnopqrstuvwxyz abcdefgh z (c) Determine the exit pressure if the back pressure is 80 kPa. State whether the flow is choked abcdefg stuvwxyz abcdefgh wwxyz or not. abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvw nnopqrstuvwxyz impeparstuvwxyz abcdefghijklmnopqrstu abcdefghijklmnopqrstuv abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuv

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