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A piston-cylinder device contains 0.167 kg of air initially at 2.2 MPa and 344°C. The air is first expanded isothermally to 415kPa, then compressed polytropically with a polytropic exponent of 1.240 to the initial pressure, and finally compressed at constantpressure to the initial state. Determine the boundary work for each process and the net work of the cycle. Sketch the processes and states on both P-v and T-v diagrams.
three wires are made of the following materials. one wire is pure al. one wire is pure cu. one wire is pure ni. which
two refrigerators are arranged in series. one of them receives 300 kjcycle from a reservoir at 300 k. the heat
consider a 300mm x 300mm window in an aircraft. for a temperature diference of 80 degrees c from the inner to outer
Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an elliptically shaped surface crack of length 0.16 mm and that has a tip radius of curvature of 0.002 mm when a stress of 1..
a 2.5 lbf block b is moving with a velocity vo of magnitude vo 6fts as it hits the 1.5 lbf sphere a which is at rest
Determine the bolt stiffness, the tube stiffness, and the joint constant C.
two particles a and b start from rest at the origin s0 and move along a straight line such that aa8t-4 fts2 and
consider a carnot-cycle refrigerator with ammonia as the working fluid. heat is rejected from the ammonia at 20 deg c
determine the work done by a 1-lb fluid system as it expands slowly within a piston-cylinder arrangement from an
air at 40 degree celsius enters a mixing chamber at a rate of 225 kgs where it mixes with air at 15 degree celsius
water flows into an 9.0 diameter section of a piping system then it exits from 3.0 x 4.0 rectangular section. the speed
Write a complete program consisting of a Main Program and Subprogram (you choose which type, but there should be only one) that fulfills the following requirements.
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