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A 3"-diameter, 5"-long gas-piston assembly contains air at STP. (STP: Standard Temperature and Pressure conditions, 300K and 1 atm. At these conditions the air density is approximately 1.2kg/m3.) Calculate the necessary piston displacement in order to increase the pressure to 45 atm (typical of a diesel engine) varying linearly with displacement (i.e. the pressure varies linearly with displacement) during an adiabatic compression that will increase the gas' internal energy by 1.2kJ.
A 4 m diameter sphere is embedded in insulation. The sphere contains a liquid-ice mixture maintained at 0 deg C. The ambient temperature surrounding the insulation is 25 deg C.
a locomotive car of mass 2000 kg traveling at a velocity v10msec is stopped at the end of tracks by a spring-damper
Water is being pumped from a large lake to a reservoir 30 m above at a rate of 5x10-3 m3/s by a 12 kW (shaft) pump. If the irreversible head loss of the piping system is 8m, determine the mechanical efficiency of the pump.
Finding Metal Removal Rate In an electrochemical machining operation, the frontal working area of the electrode is 2.5in squared
Given that an activity's normal time and cost are 10 days and $400 and its crash time and cost are 5 days and $800, what is the activity's slope?
an air-standard brayton cycle is utilized as a jet propulsion engine. the aircraft flies at an altitude of 5000 m at a
1. with reference to basic constructional features contrast the methods of compression employed by positive
a thin flat pate that is 0.2m by 0.2m on a side is oriented parallel to an atmospheric airstream having a velocity of
air within a piston-cylinder assembly initially at 12bar 327 degree celcius undergoes an isentropic expansion to
water is flowing horizontally through 100 feet of 2 inch pipe then into a sudden expansion to 3 inch pipe for 50 more
a bar of mild steel has a diameter of 75 mm and is placed inside a hollow aluminum cylinder of internal diameter 75 mm
r-22 enters an insulated diffuser as saturated vapor at 4c with a velocity of 300ms. the refrigerant exits the diffuser
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