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A non flow system undergoes a reversible process according to law p=4.5/v+2 where pressure p is in bar , specific volume v in m3/kg. During this process volume changes from 0.12 m3/kg. if the specific gas constant is 278j/kg-k, find p1 and T1 (in si units) p2 and T2, expansion work done during the process and whether the work is done on the system or BY the system, if the specific heats cp=1000j/kgk and cv=772j/kgk what is the change in internal energy and enthalpy of the gas going from process 1 to process 2.
A cylindrical bar of aluminum 19 mm (0.75 in) in diameter is to be deformed elastically by application of a force along the bar axis. Using E=10 psi (Modulus of Elasticity), determine the force that will produce an elastic reduction of 1e-4 in. in..
in an air compressor the pressure at inlet and outlet are 1bar and 5bar respectively. the temperature of the air at
If the minimum attractive rate of return is20% per year, determine the one machine that should be selected on the basis of a rate of return analysis.
steam enters an insulated nozzle with a velocity of 500 ms and a pressure of 5.0mpa and a temperature of 600 degrees
nitrogen gas at 60 kpa and 7degc enters an adiabatic diffuser steadily with a velocity of 275 mls and leaves at 85 kpa
a. if the largest internal crack in a polycarbonate sheet is 0.100mm long and there are no surface cracks what is the
a rankine steam power plant should operate with a high pressure of 3 mpa a low pressure of 10 kpa and the boiler exit
a 500-hp hydroelectric plant generates power using water at a rate of 1000 ft2min with an overall efficiency of 35.
the displacement volume of a six-cylinder diesel engine is 3 liters. the cycle can be modeled as an ideal diesel cycle
The rack structure will be built 2 ft above floor level, and the clearance between the rack structure and the ceiling of the building must be at least 18 in. Determine the dimensions (height, length, and width) of the rack structure.
A construction crew lifts approximately 560 lb of material several times during a day from a flatbed truck to a 32 ft rooftop. A block and tackle system with 50 lb of effort force is designed to lift the materials.
Determine the factor of safety against net section yield in the presence of the crack and determine the factor of safety against brittle fracture for the same conditions.
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