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A heat engine operates between a source at 530C and a sink at 8C. If heat is supplied to the heat engine at a steady rate of 1,450 kJ/min, determine the maximum power output of this heat engine.
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.
a freight elevator moving upward with a constant velocity of 6fts passes a passenger elevator which is stopped. four
two flows of air both at 200 kpa of equal flow rates mix in an insulated mixing chamber. one flow is at 1500 k and the
a barometer is used to measure atmospheric pressure contains mercury with a density of 13590 kgm3. if the local
consider the equation dydt y2y2-1 a- determine the equilibria and classify each one as asymptotically stable unstable
two of the three velocity components for an incompressible flow are u x2 2xz vy22 yz what is the general form of the
a certain indutrial process requires a steady stream of saturated vapor steam at 200 kpa at the rate of 2 kgs. there
an air-standard otto cycle has a compression ratio of 8 and the temperature and pressure at the beginning of the
for a certain experiment r-410a vapor is contained in a sealed glass tube at 20 degrees celcius. we want to know the
Solar energy impinging on the outer layer of earth’s atmosphere (usually called “solar constant”) has been measured as 1367W/m^2. What is the solar constant on Mars
a cylinder contains 2 kg of steam at 200 kpa and 200oc. now steam is compressed at constant pressure until its
a first class lever in static equilibrium has a 50lb resistance force and 15lb effort force. the levers effort force is
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