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A cylinder with a piston restrained by a linear spring contains 2kg of carbon dioxide at 500 kPa, 400 C the system is now cooled to 40C, at which point the pressure is 300 kPa. You may assume ideal gas behavior with constant specific heat value Cv=0.6529 kJ/kg-K (a) Calculate the work for the process, in kJ (b) Calculate the heat transfer for the process, in kJ
two refrigerators are arranged in series. one of them receives 300 kjcycle from a reservoir at 300 k. the heat
air undergoes a polytropic process in a piston-cylinder assemply from p1 14.7 lbfin2 t1 70 degrees f to p2
a spring 75 nm has an equilibrium length of 1.00 m. the spring is compressed to a length of 0.50m and a mass of 2.1kg
Calculating a Constant Pressure Process, In a constant pressure, nonflow process, 6Btus of heat are added to a gas while the volumes change from 1.6ft^3 to 2.0ft^3
a brake system applies a resistive torque of 25 n. how many revolutions will occur if a 300 kg solid wheel of diameter
a tennis racket hits a tennis ball with a force of fat-bt2 where a1 1280 nms b1 460 nms2 and t is the time in
a spur pinion d 100 mm has a torque of 225 nm applied to it. for pressure angle of 20 degreea. calculate wt wn and wr
A heat engine operates between two temperature limits of 1200 K and 300 K. It receives 1 MJ of heat while producing 450 kJ of useful work.
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..
Determine the required length L of each splice if a factor of safety is 2.75.
an aircraft model tested in a wind tunnel produced 5 pounds of lift giving a lift coefficient of 0.7. when the actual
a steam power plant operates on an ideal regenerative rankine cycle with two open feedwater heaters. steam enters the
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