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A constant-area duct is fed by a converging-only nozzle. The nozzle receives air from a large chamber at p1=600 KPa and T1=550 K. The duct has a friction length of 5.3, and it is choked at the exit. What is the pressure at the end of the duct? If 80 percent of the duct is removed, and the conditions at station 1 and the friction factor remain constant, what is the new exit pressure and Mach number?
ammonia enters a control volume operating at steady state at p1 14 bar t1 28 oc with a mass flow rate of 0.5 kgs.
a motorist decreases the speed of an automobile at a constant rate from 45 to 30 mih over a distance of 750 ft along a
A cart travels a track and experiences a constant tangential acceleration from point A to point C. The speeds of the cart are 11.2ft/s at point A and 17.2ft/s at point C. The cart takes 4.50s to go from point A to point C, and the cart takes 1.20s to..
if the seat pocket diameter in a ball valve is 5.000 the seat seal ring to ball sealing diameter is 4.438 and the
Calculate real gas pseudopressure at a pressure of 1902.7 psia using the following data and a base pressure of 102.7 psia. Was the calculation of real gas pseudopressure necessary for this gas? Explain your answer.
calculate the change in specific internal energy and enthalpy of air for a process starting at 250 k and ending at 500
consider a rankine cycle 100 mw net power vapor power plant with a reheater and regeneration and a single open
a radar station is tracking a plane flying at constant altitude with a speed of v0 600 mph. if at a given instant r
a 12-mm diameter jet of water discharges vertically into the atmosphere. due to surface tension the pressure inside the
a piston-cylinder device containing water undergoes a thermodynamic cycle consisting of the following three
for an iron-carbon alloy of eutectoid composition 0.76 wt carbon what is the required time at 675 degrees celsious to
a bicycle rider rides from home along a highway and back along the same road in such a way that her distance from home
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