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A closed system consisting of 0.13 lbmol of air undergoes a polytropic process from a pressure of 14 psia and specific volume of 11.50 ft3/lb to a final state of 83 psia and specific volume of 3.98 ft3/lb. Determine the amount of energy transfer by work, in Btu, for the process. The molar mass of air is 28.97 lb/mol.
steady-state creep rate data are given for an alloy taken at 474 k with the activation energy for creep of 140000
a 100-mm long and 20-mm diameter rod of 403-stainless steel is pulled to fracture with reported results as follows
water at atmospheric pressure boils on the surface of alarge horizontal copper tube. the heat flux is 90 ofthe critical
an especially violent lightning bolt has an average current of 1.37 103 a lasting 0.125 s. how much charge is delivered
water flows through the horizontal y-fitting shown in figure p3.101. if the flowrate and pressure in pipe1 are q1 2.3
a rectangular fuel storage tank 2.4m wide and 2m high has a volume of 40 m3. it is placed horizontally so the top of
Assume that viscous effects are negligible Plot this data using appropriate dimensionless groups
on the apollo 14 mission to the moon astronaut alan shepard hit a golf ball with a golf club improvised from a tool.
1 consider the diagram below where a pump is used to draw water from a lake to feed an irrigation system.a which of the
consider two concentric thin wall steel tubes the larger one closed at the bottom and the inner one open. the tubes are
a mass-spring-damper system has a mass of 100 kg. its free response amplitude decays such that the amplitude of the
A two capacity process tank is to be analyzed using proportional and integral controllers. A process could be a steam jacketed kettle as shown in Figure.1.Water is heated continuously by the steam flow and it is proposed to use a controller to regula..
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