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Gas with an initial volume of 0.36 m3 is slowly compressed to a final volume of 0.16 m3 by a process during which the pressure changes with volume according to the relation P = aV + b, where a = -1100 kPa/m3 and b = 500 kPa. Determine the work done during the process (a) by plotting the process on a P-V diagram and finding the area under the process curve and (b) by performing the necessary integration.
What is a 90 percent confidence interval for the standard deviation of the thickness of a washer produced by this procedure?
a steel rod with a diameter of 2 cm length l25cm thermal conductivity of 50 wmk is exposed to ambient air at 20c. heat
determine the thermal efficiency and the required steam flow rate kgs for a reheat-regenerative steam power plant which
An ideal vapor-compression refrigeration cycle uses R-134a as the working fluid in an air-conditioning system. The refrigerant enters the compressor as a saturated vapor at 40 °F
a particle which moves with curvilinear motion has coordinates in meters which vary with time t in seconds according
a 3-lb collar can slide on a horizontal rod which is free to rotate about a vertical shaft. the collar is intially held
A wheel barrow is used to lift a 200 lb load. The length from the wheel axle to the center of the load is 2 ft. The length from the wheel and axle to the effort is 5 ft. 5. What is the ideal mechanical advantage of the system?
natural gas at 70 f and standard atmospheric pressure of 14.7 psi is compressed isentropically to a new absolute
heat treatment is common in processing semiconductor materials. a 200- mm-diameter silicon wafer with thickness of 725
Twenty-five samples of steel beam were chosen and tested for Young's Modulus. Eight had a modulus of E = 30 x 10^6 psi. Two had a modulus of E = 29 x 10^6 psi. Fifteen had a modulus of E = 30. x 1-^6 psi.
the portion of a race track between points a corresponding to x0 and b is part of a parabolic curve described by the
bullet a from west with a mass of 175g and speed of 550ms and bullet b from east with a mass of 150g and speed of 200ms
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