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1-2 an actual refrigerator absorbs 500 kJ of heat from a sink at 250 K and reject 660 kJ of heat to environment at 300 K. T0 = 300 K. the heat transfer processes are reversible. Determine The second law efficiency of the device and The actual COP of the device
you have tested bearings for a particular machine. this resulted in a mean of 40570000 cycles with a standard deviation
a pressure vessel of radius 11.0 in is filled with a gas at a pressure of 550.0 psi gauge. the top of the vessel is
A train accelerates uniformly along a straight track and passes three trackside markers. The distance between the first two markers is equal to 0.25 km and between the second and third the distance is 0.4km
determine the maximum theoretical speed that may be achieved over a distance of 360ft by a car of weight w starting
Calculate the net cycle work in kJ assuming air is an ideal gas with constant specific heats.
a four-stroke-cycle engine operates on the air-standard diesel cycle. the engine has six cylinders with a 0.105 m bore
an insulated rigid tank with a volume of 10ft3 is connected by a valve to a supply line containing steam at 500 psia
consider the flow of air over a vertical flat plate at a low velocity u1 in ambient pressure p1. the plate surface
Name products that are manufactured using these processes and write two sentences on why you know it's made from this process.
How many engagement points on the flywheel would be necessary to make this machine safe?
air at mass flow rate of 10 kgs at 1 atm 300 k point1 enters an adiabatic compressor and exists at 8 atm 600 k point 2.
a discuss the assumption that when a piece of metal is deformed at constant temperature its volume is unchanged.b a
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