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A cylinder fitted with a piston containing 1kg of Refrigerant 134a at 20C and 90% vapor quality is attached to a line flowing Refrigerant 134a. The total force on the piston is proportional to the cylinder volume squared. The valve is now opened and Refrigerant 134a flows into the cylinder until the mass inside is three times the initial mass and the final pressure in the assembly is 900 kPa at which point the valve is closed. Determine the work done during this process, in kJ.
a rigid tank contains 7.5 kg of saturated water mixture at 400 kpa. a valve at the bottom of the tank is now opened and
Consider an ideal simple rankine cycle with steam as the working fluid. Saturated vapor enters the Turbine at 8 MPa and saturated liquid exits the condenser at a pressure of 0.008 MPa. The net power output of the cycle is 100MW.
a civil engineer must design a wheelchair accessible ramp next to a set of steps leading up to a building. the height
water gate is hinged at point o. angle between the gate and the ground is given alpha 60 degrees. the gate opens when
block b has a mass m and is released from rest when it is on top of cart a which has a mass of 3m. determine the
in a direct acting pressure relief valve 64 bar pressure is acting on the conical dart seating area and the dart is
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 jet engine mass m 400kg of a passenger airplane is attached to the planes wing by a connector that has an
the number of vacancies in a material is related to temperature by an arrhenius equation. if the fraction of lattice
1 a piston-cylinder contains 1.2 kg of saturated water vapor at an initial temperature of t1 200
given that the instantaneous voltage across a capacitor isvc401-e-tcrvoltswhen being chargerd by a 40 volt dc supply
A wheel is rotating at a uniform clockwise speed of 2 rad/s when a variable torque is applied to its shaft at time t=0. As a result there is a clockwise angular acceleration \alpha which increases in direct proportion to the angle \Theta through whic..
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