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A converging nozzle with diameter 6cm is attached to a resevoir maintained at 30-c and 150kpa absolute. Determine the mass flux using the appropriate properties table.
the end of a robtoic arm extends along the path of the limacon r 1.5 cos thetam. at the instant that theta pi4 the
a gas in a piston-cylinder assembly undergoes two processes in series. from state 1 to state 2 there is energy transfer
The other half of the satellite is and tip temperature for GS = 0 and an extremely large value of the thermal conductivity. Compare coated with a diffuse gray material with a2 = 0.3.
Using the results of Problem 1.38, determine the modified coefficient of performance and the required power input W under (a) clean and (b) dusty coil conditions.
Calculate the fraction of atom sites that are vacant for copper (Cu) at a temperature of 729°C (1002 K). Assume energy for vacancy formation of 0.90 eV/atom. Repeat this calculation at room temperature (298 K).
the temperature inside a carnot refrigerator is maintained at 5 degrees c by rejecting heat to the surrounings at an
At the end of the isothermalexpansion, the pressure is 600 kPa and the volume is 0.4 m3. Assuming the ideal gas model for air, determine the thermal efficiency.
two perfectely black squares 10 ft x 10 ft are spaced 20 feet apart. what is the net rate of heat exchange between them
A plane can fly 299 mph in still air. If it can fly 180 miles downwind in the same amount of time it can fly 119 miles upwind, find the velocity of the wind.
a gas refrigeration system composed of a turbine a compressor and two heat exchangers is operating at steady state. air
hot engine oil enters a 1-in schedule 40 steel pipe at 80?c with a velocity of 5 ms.nbspthe pipe is submerged
A turbojet aircraft flies with a velocity of 900 km/h at an altitude where the air temperature and pressure are -35 degrees C and 40 kPa. Air leaves the diffuser at 50kPa with a velocity of 15 m/s, and combustion gases enter the turbine at 450 kPa an..
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