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An evacuated 150-L tank is connected to a line flowing air at room temperature, 25 degree C and 8 MPa pressure. The valve is opened, allowing air to flow into the tank until the pressure inside is 6 MPa. At this point the valve is closed. This filling process occurs rapidly and is essentially adiabatic. The tank is then placed in storage, where it eventually returns to room temperature. What is the final pressure?
collar c moves along a circular guide with radius R=2ft with a constant speed v=18ft/s. at the instant, the bars AB and BC are vertical and horizontal respectively. Letting L=4ft and H=5ft, determine the angular acceleration of the bars AB and BC ..
In a refrigerator 1 kW is removed from the -10 degree C cold space and 1.3 kW is moved into the 30 degree C warm space. Find the exergy fluxes including direction associated with the two heat transfers.
20 kg of water at 200 kpa with a quality 25 is heated under a constant volume process until its pressure reaches 400
If I take measurements using a Pitot Tube and get results for pressures Horizontal In, Horizontal Out, Vertical In, and Vertical Out all in inches of mercury. How do I take these pressures and determine a Velocity using Bernoullis equation?
a carnot heat engine operates between a heat source at 1200 k and the environment at 300 k. the net work produced by
when a brass specimen initially .505 in in diameter is tested the maximum load of 12000lbs was recorded at an
the upside-down steel a frame shown in the figure is to be bolted to steel beams on the ceiling of a machine room using
What is the concentration of FeCl3 in a solution prepared by dissolving 20.0 g of FeCl3 in enough water to make 275 mL of solution?
a computer cpu chip operates at steady state with d-c electrical input of 4.5 amps at 9 volts. to prevent the chip from
the system is released from rest with no slack in the cable and with the spring stretched 100 mm. determine the
Calculate the force required to punch out a rectangular hole 100m x 50mm in a 2mm thick aluminium sheet. The ultimate strength in shear is 125 MN/m^2.
what does it mean when a steel cable is required to have a factor of safety of at least 5 against its ultimate load?
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