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May 17, 2018 (Sec02) 1. (15 points) Air modeled as an ideal gas enters a combustion chamber at 20 lbf/in and 70-F through a rectangular duct, 5 ft by 4 ft. If the mass flow rate of the air is 830,000 lb/h, determine the velocity, in f/s. Carry all calculations in US system of units Combustion Chamber Air T-70°F m-830,000 lb/h
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