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In a piston cylinder assembly, Refrigerant 134a undergoes a constant pressure process from saturated vapor at 8 bar to 50 °C. Determine the work and heat transfer, per unit mass, each in kJ/kg, for the refrigerant. Neglect changes in kinetic and potential energies.
a uniform stream of speed v is inclined at angle alpha from the x-axis. the flow is steadu state and two dimensional
you have a freezer in you apartment that maintains an inside temperature at 12degreef. the coefficient of performance
A plane can fly 305 mph in still air. If it can fly 185 miles downwind in the same amount of time it can fly 120 miles upwind, find the velocity of the wind.
A steam turbine is operated ith an input temp of 800C and exhaust temp of 150C. What is the maximum amount of work the turbine can do for a given heat input Q? Under what conditions is the maximum achieved?
A table shows values of a force function f(x), where x is measured in meters and f(x)in newtons. Use Simpson's Rule to estimate the work dome by the force in moving an object a distance of 18m
a cast-iron tube is used to support a compressive load. knowing that e 69 gpa and that the maximum allowable change in
why is the correct tightening of friction grip bolts important?
the 230000 lb space shuttle orbiter touches down at about 220 mihr. at 200 mihr its drag parachute deploys. at 35 mihr
a rigid tank contains 20 lbm of air at 20 psia and 70degf. more air is added until the pressure and temperature rise to
What happens to the cutting and thrust force as tool rake angle and cutting speed are increased and what is the relation between the cutting and thrust forces to the depth of cut?
Two kilograms of Refrigerant134a, initially at 2 bar and occupying a volume of 0.12 m3, undergoes a process at constant pressure until the volume has doubled. Kinetic and potential energy effects are negligible. Determine the work and heat transfe..
problem 1 air at 29.5ordmc db flows over a cooling coil and leaves it at a state of 13ordmc db and 8.5 gkg absolute
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