Question: Air flows through a duct whose area is 1 foot at a speed of 7 0 0 feet / sec . The temperature is 1

Air flows through a duct whose area is 1 foot at a speed of 700 feet/sec. The temperature is 140F and the pressure is 50 psia. Calculate the area of the minimum downstream reach for which it is certain that this flow is "throttled"

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