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Explain the difference between a jig and fixture which are used as work holding devices
an automotive radiator has glycerine at 140 degf enter and return at 130degf. air flows in at 68degf and leaves at
2 m3 of air in a rigid and insulated container that is fitted with a paddle wheel assembly. the air starts at 300 k and
a 0.2 m3 tank containing helium at bar and 22 c will be used to supply 4.5 moles per minute of helium at atmospheric
a rocket weighs 2600 lb including 2200 lb of fuel which is consumed at a rate of 25 lbs and ejected with a relative
air at 80oc and a pressure of approximately 1350 kpa abs flows in a 20-mm-diameter tube. what is the minimum turbulent
consider a house whose walls are 4 m high and 12 m long. two of the walls of the house have no windows while each of
R-410a flows at 0.3 Ibm/s in a refrigeration system. The R-410a is throttled from 60 F. 270 psia to 45 psia. Determine the temperature and quality of the R-410a after throttling.
a floating platform weighs 30 kn. a hollow sealed cylinder 1 m in diameter weighs 1 kn per meter of length. the water
air is used in a carnot cycle as a working substance . determine the efficiency of the cycle if as a result of an
On a unit surface area basis, determine the rate of heat transfer into and out of the wall and the rate of change of energy stored by the wall.
A Carnot heat engine operates between 40C and 320 C. What is the thermal efficiency? if the work output is 200 kJ/kg, what is the quality of state A (in 320C)?
On Earth, an astronaut weighs 145 pounds. Compute a) this astronaut's weight (in SI units) on the surface of Mars where the gravitational acceleration is 12.2 ft/s^2, b) her mass on Mars in British units, c) her mass on Mars in SI units, d) her mass ..
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