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A piston-cylinder assembly contains a two-phase liquid-vapor mixture of H2O at 200 lbf/in^2 with a quality of 80%. The mixture is heated and expands at constant pressure until a final temperature of 480 F is reached. Determine the work for the process, in Btu per lb of H2O present.
a square aluminum plate 5 mm thick and 200 mm on a side is heated while vertically suspended in quiescent air at 40c. a
a circular cylinder of tantalum with an initial diameter of 3.1 mm is fired at a target. during impact the base of the
Determine the forces in members DE,DF, and EF of the scissors truss shown. Also, state whether the members are in tension or compression. Note that the 400 lb force is directed along the line BF and the 800 lb force is parallel to line BF.
during some actual expansion and compression processes in piston-cylinder devices the gases have been observed to
oil with a specific gravity of 0.70 is used as the indicating fluid in a manometer. if the differential pressure across
The desire is to raise the temperature of the ambient air from 60 degree F to 350 degrees F ---- I need to calculate the amount of steam energy in BTU's per minutes and lbs of steam per minute necessary to accomplish the increase in air temperatur..
a closed gas turbine unit uses neon as the working fluid. there are two stages of compression with intercooling from
a water pump pumps out 2400kg of water pr min. a if water coming out with a velocity of 3ms what is power of the pump?
if the variation of the acceleration with gravity in ms2 with elevation z in m above sea level is g9.81 - 3.310-6z
A Carnot refrigerator using R-134a absorbs heat from a refrigerated space at 0oC and rejects heat to a kitchen at 27oC.The refrigerant enters the evaporator with a quality of zero and exits with a quality of one. The operating pressure of the evapora..
a frictionless piston-cylinder device and a rigid tank initially contain 12kg of an ideal gas each at the same
moist air at 30 degrees c 2 bar and 50 relative humidity enters a heat exchanger operating at steady state with a mass
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