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An inventor claims to have developed a device that executes a power cycle while operating between reservoirs at 500 and 300 K that has a thermal efficiency of (a) 45%, (b) 40%, (c) 35%. Evaluate the claim for each case.
a 3 cm thick stainless steel thermal diffusivity 0.0000044 k16.3 initially at 500degc is suddenly exposed to convective
the acceleration of a particle is given by a -ks2 where a is in meters per second squared k is a constant and s is in
a force of 67000 n is applied to a steel wire 7.5 m in length. the tensile stress in the wire must not exceed 138 mpa
a mixture of gases with an apparent molecular weight of 35 kgkilo-mol is flowing at 20 degrees celsius the manometer
A frictionless piston-cylinder contains 3.0 kg of H2O and is initially at 300 kPa. The initial volume is 1.0 m3. The water is heated until the temperature is 300 C. If the volume within the system reaches 1.5 m3, the piston hits a set of stops and is..
A Steam-powered catapult on an aircraft carrier accelerates a 16000-kg aircraft from zero to 320 km/h in 2 seconds. Assume that the acceleration is constant. A) Determine the work done by the catapult on the aircraft. B) Determine the kinetic energy ..
plot your results determined in the previous part. (c) Calculate the values of n and C in the Taylor equation solving simultaneous equations.
a pitot-static tube used to measure air velocity is connected to a differential pressure gage. if the air temperature
three lbm of air at 300 f and 100 psia expands to twice its original volume in an adiabatic process carried out in a
The cantilevered bar in the figure has a circular cross section and is subject to bending and torsion. The normal stress due to bending in x=28 kpsi and the shear stress due to torsion is xz=15.3 kpsi. The change in diameter introduces a stress conce..
the main waterline into a tall building has a pressure of 90 psia at 16 ft elevation below ground level. how much extra
determine the temperatures of surface 1 through 4 of the furnace cavity of example 13.3 if the entire furnace
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