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Air is compressed in a car engine from 22 °C and 95 kPa in a reversible and adiabatic manner. If the compression ratio, V1/V2 of this piston-cylinder device is 8, determine the final temperature of the air.
Assume the air is an ideal gas and: kair= 1.4, cv,air = 0.717J/g.K, cp,air =1.004 J/g.K, Mair = 28.97 g/mol.
if the resultant force .middotr is directed along anbspline measu red 75 clockwise from the positie x axis andnbspthe
a deep-water oil rig has just collapsed into the gulf of mexico. its blowout -preventer system has failed so thousands
refrigerant 134a at -10degc 1.4 bar and a mass flow rate of 280 kghr enters an insulated compressor operating at steady
water at 1000 kpa 200c is brought to saturated vapor in a pistoncylinder with an isobaric process. find the specific
an element of a material experiences stresses sigmaz ?20 mpa sigmax 40 mpa tauexz 40 mpa sigmay 80mpa. the shear
a gaseous mixture consists of 75 methane and 25 ethane by mass. one million cubic feet of this mixture is trapped in
a rigid tank contains 5 kg of refrigerant-134a initially at 20degc and 140 kpa. the refrigerant is now cooled while
in an infinite homogeneous medium containing a uniformly distributed radionuclide source emitting radiation energy at a
A 40 mm diameter hole is drilled 3 m deep into the steel shaft. When the two torque are applied, determine (a) the maximum shear stress in the shaft: and (b) the angle of rotation of the free end of the shaft. Use G= 83GPa for steel.
a pipe in a manufacturing plant is transporting superheated vapor at a mass flow rate of 0.3 kgs. the pipe is 10 m long
Calculation of percentage heat reduction, Water at 90 C flows through a 50mm bore steel pipe of wall thickness 8 mm. Ambient temperature is 18 C. Calculate the heat loss per metre length of pipe
a power drive shaft is designed with a safety factor of 8. the shaft is subjected only to torsional load torque. if the
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