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A Carnot heat engine operates between 40C and 320 C. What is the thermal efficiency? if the work output is 200 kJ/kg, what is the quality of state A (in 320C)?
an ideal gas power cycle is executed within a closed piston-cylinder system and consists of three processes as follows1
At a certain instant, gyrosensors on an airplane report that it is heading 40 degrees west of north, climbing at an angle of 20 degrees, and that its wings are banked at an angle 10 degrees clockwise as looking forward (along the axis of the plane). ..
a cylindrical wheel billet 1ft. in diameter and 3ft. long initially at 1000 f is quenched in oil. assume that the
the combustion gases modeled as air enter a turbine at 6atm 1000k and exits at 1atm 500k. determine the isentropic
A system consisting of 1kg of H2O undergoes a cycle composed of the following closed processes:
the ball is kicked with an initail speed of 8 ms at an angle of 40 degrees with the horizontal. find the equation of
refrigerant 134a enters the expansion valve of a refrigeration systems at a pressure of 1.0mpa and a temperature of 34
refrigerant-134a at 800 kpa and 25 degree c is throttled to a temperature of -20 degree c. determine the pressure and
A box of clear plastic wrap for household use is polyethylene, C2H4, with density = 0.910 Mg/m3. A box of this product contains 87 ft2 of material (in a roll 304 mm wide by 26.5 m long). If the wrap is 0.2 mil (5.08 micrometers) thick, calculate the ..
a fluid is held between a lower place of temperature t1 and an upper place of temperature t2 the distance between the
A three-point bending test was performed on a glass specimen having a square cross-section of 15 mm length on each edge. The specimen fractured at a load of 4770 N when the distance between the support points was 41 mm.
a 4 lb block with an initial velocity of 5 fts is sliding down a 30 degree slope before being slowed by a spring. if
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