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A rod of 0.5 in. diameter is subjected to a 8050 lb tension force. The rod elongates 0.031 in. in a gage length of 8 in. and the diameter decreases 0.000629 in. Determine a) the modulus of elasticity, b) the engineering stress, c) true stress, d) engineering strain, and e) true strain.
air flows into the narrow gap of height h between closely spaced parallel disks through a porous surface as shown. use
refrigerant 134a undergoes a process for which the pressure-volume relation is pvn constant. the initial and final
a contact feedwater heater operates on the principle of mixing steam and water. steam enters the heater at 100 psia and
suppose the past data indicates that the probability of a fluorescent light produced from a production line has a
consider a heat pump that operates on the ideal vapor compression refrigeration cycle with r-134a as the working fluid
an air conditioning system is designed for a zone with a high dehumidification demands and humid outdoor conditions.
The diameter of the tube is 13 cm and its length is 60 m. Determine the overall heat transfer coefficient of this heat exchanger using (a) LMTD and (b) -NTU method.
a cylinder contains 2 kg of steam at 200 kpa and 200oc. now steam is compressed at constant pressure until its
a scuba diver has a tank with an internal volume of 2500 cm3 air tank which is pressurized to 22 mpa at 27 deg c. after
in the absence of compressed liquid property tables it is common to approximate properties by using the saturated
a gas refrigeration cycle with a pressure ratio of 3 uses helium as the working fluid. the temperature of teh helium is
a pump accepts liquid water at 60 degf and 14 psia and compresses it isothermally to a pressure of 100 psia. the pump
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