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Helium at 68 degrees Farenheit and 14.7 psia in a large tank flows steadily and isentropically thorugh a converging nozzle to a reciever pipe. The cross-sectional area of the throat of the converging passage is 0.05 ft^2. Determine the mass flow rate through the duct if the reciever pressure is A.) 10 psia, B.) 5 psia. Sketch temperature-entropy diagrams for situations A and B.
an electrical power plant has stack gases exhausting at 150 degree c. design a basic rankine cycle that uses water
Saturated liquid-vapor mixture of water, called wet steam, in a steam line at 2000 kPa is throttled to 100 kPa and 120?C. What is the quality in the steam .
10 mols of liquid benzene at 20degc and 1 bar is pumped to 5 bar. at the inlet conditions the molar volume of benzene
if a particles position is described by the polar coordinates r 2 sin 2u m and u 4t rad where t is in seconds
a piston-cylinder device initially contains 0.07 m3 of nitrogen gas at 130 kpa and 120 oc. the nitrogen is now expanded
an infinitely long sheet of charge of width l lies in the xy-plane between x - l2 and x l2. the surface charge
a fluid flows through an adiabatic device. at one end the velocity is 30 ms h 320 kjkg and s 0.695 kjkg k and at the
a diffuser is a device that the flow of air in order to recover a pressure loss. for the diffuser shown in the attached
Three springs anda mass are attached to a rigid, weightless bar PQ hinged at one end. How do I find the natural frequency?
the wheel roles without slipping such that at the instant shown it has an angular velocity and angular acceleration.
air enters a compressor at 179 kpa and 290 k and exits at a temperature of 500.9 k. determine the power kw for the
the service life of a battery used in a cardiac pacemaker is assumed to be normally distributed. a random sample of 10
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