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a closed, fricitionless, piston-cylinder assembly contains 4 lbm of water. beginning with an initial volume 10 ft^3, the water is compressed slowly until the volume has reduced to 10 percent of the initial volume. During the process, heat transfer from the water occurs at such a rate as to keep the temperature constant at 300 F. Determine the magnitude and the direction of the work (ft-lbf) and heat transfer (Btu) for the process.
a horizontal cylinder is separated into two sections by an adiabatic frictionless piston. one section contains 0.2 m3
a piston d50mm sits on top of a fluid s.g.11 connected to a 10mm diameter tube open to the atmosphere. a if the fluid
Saturated liquid-vapor mixture of water, called wet steam, in a steam line at 2000 kPa is throttled to 100 kPa and 120?C. What is the quality in the steam .
a flywheel can be considered as being composed of a thin disc and a rim. the rim weighs 322 lb and has diameters of 24
State the sequence in which the cylinders operate on the operation of the start valve and show, with the aid of a schematic diagram, how an electronic controller could be included in the circuit to control the sequence of cylinder operations.
during a simple orienteering exercise a person walks 250 m south then 620 m at an angle of 30 north of east and finally
This problem came from the "kinematics of particles" part holding the "Determination of the motion of a particle" section, so use the formula relating to this section of this part.
calculate the bulk density of a rock which has 20 porosity. the bulk mineralogy of the rock is 80 quartz 15 calcite and
Steam enters a diffuser at 20 psia and 240oF with a velocity of 900 ft/s and exits as saturated vapor at 240oF and 100 ft/s. The exit area of the diffuser is 1 ft2. Determine (a) the mass flow rate of steam and (b) the rate of entropy generation.
draw a block-diagram of a yaw rate damping system.include the following components the airframe the rudder actuator the
find the total heat loss per m length of the steam line. Find also the temperature at the interface of steam and insulation.
discuss whether the following situations should be modeled as closed systems or open systems. clearly define the
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