Question: A jetliner is flying at 275 m/s at a high altitude where the atmospheric pressure and temperature are 50 kPa and 250 K, respectively. Air

A jetliner is flying at 275 m/s at a high altitude where the atmospheric pressure and temperature are 50 kPa and 250 K, respectively. Air is first decelerated in a diffuser, before it is compressed by an isentropic compressor with a compression ratio of 10. Determine
(a) The pressure at the compressor inlet and
(b) The compressor work per unit mass of air.

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