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Carbon dioxide gas enters a well-insulated diffuser at 20 lbf/in.2, 500°R, with a velocity of 800 ft/s through a flow area of 1.4 in.2 At the exit, the flow area is 30 times the inlet area, and the velocity is 20 ft/s. The potential energy change from inlet to exit is negligible. For steady-state operation, determine (a) the exit temperature, in °R, (b) the exit pressure, in lbf/in.,2and (c) the mass flow rate, in lb/s.
How long wi1l it take for the mid plane temperature to achieve 50% of its maximum possible temperature reduction?
a hypothetical a-b alloy of composition 59 wt b-41 wt a at some temperature is found to consist of mass fractions of
the coefficients of static friction and kinetic friction 0.4, 0.30 between all surface of contact. determine the force p for which motion of the 30kg block is impending if cable AB is attached is shown and removed.
determine an expression for steady temperature distribution in a long hollow cylinder with specified surface
What is the nozzle-exit-to-throat area ratio for case (a)? The gross thrust is the contribution to engine thrust made by the exhaust nozzle only.
find the cartesian components of force p acting in the x y and z directions given p20n alpha 134.5 deg beta 55.0 deg
A 0.7-lb block rests on top of a 0.5-lb block supported by but not attached to a spring of constant 9 lb/ft. The upper block is suddenly removed. Determine (a) the Maximum velocity reached by the 0.5-lb block, (b) the maximum height reached by the..
The cylinder of a water-cooled reciprocating compressor contains 0.05m^3 of air at 1.01bar. It is compressed isothermally to 8.0 bar. Determine the work input and the amount of heat rejected to the compressor cooling water.
calculater the size of air reciever required to supply air to a pneumatic system using 100 scfm of air for 15 minutes
a piston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is
a turbojet aircraft is flying with a velocity of 320 ms at an altitude of 9150 m where the ambient conditions are 32
the cable is made of steel. what diameter should tar cable b so that the material does not exceed 50 percent of its
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