(Solution) - Repeat Prob 17 66 assuming the entrance velocity is negligible Prob 17 66 Air -(2025 Original AI-Free Solution)

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Repeat Prob. 17-66 assuming the entrance velocity is negligible.
Prob. 17-66
Air enters a nozzle at 0.5 MPa, 420 K, and a velocity of 110 m/s. Approximating the flow as isentropic, determine the pressure and temperature of air at a location where the air velocity equals the speed of sound. What is the ratio of the area at this location to the entrance area?