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Warm air is conatined in a piston-and-cylinder device oriented horizontally, as shown below. The air cools slowly from an initial volume of 0.003 m3 to a final volume of 0.002 m3. During this process, the spring exerts a force that varies linearly from 900 N to a final value of zero N. The atmospheric pressure is 100 kPa and the area of the piston face is 0.018 m2. Friction between the piston and cylinder wall can be neglected because the process occurs so slowly. For the air, determine the initial and final pressures in kPa and the boundary work for the process in kJ.
A piston -cylinder device contains 0.06 m3 of saturated water vapor at 350 KPa pressure. Determine the temperature and the mass of the vapor inside the cylinder.
Also determine the axial force and deformation of the diameter due to temperature rise. Let E = 120 GPa and Co-efficient of linear thermal expansion = 0.0000168 per °C.
Determine a) the volume of the tank,b)the final temperature and pressure, and c) the internal energychange of the water.
Plot the total mass in the tank, in kg, and the amount of heat transfer, in kJ, versus the final quality x ranging from 0.2 to 1.0
Steam enters a turbine operating at steady-state at 700 ºF and 600 lbf/in2 and leaves at 0.6 lbf/in2 with a quality of 90%. The turbine develops 12,000 hp
If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding out of the turn when traveling at 85 km/h?
100 kg of liquid water at 25C and 50 kg of ice at 0C are placed in an isolated container. (a) (b) (c) Find the initial volume of the liquid-ice mixture, in m3. Determine the volume after all the ice is melted, in m3. Will the temperature of the li..
Using the data in Problem , Meredith and Smunt Manufacturing expects sales of pumps to grow by 10% next year. Compute next year's sales and the sales for each quarter.
The block is a cube that is 300mm on each side. Assume the block is incredibly tall. At steady state, what is the velocity of the block?
Midrange and amplitude components, A shaft is subjected to a completely reversed bending stress such that Xmax=40kpsi and Xmin=-40kpsi
If an identical spring is cut so that one part is one-fourth and the other part three-fourths of the original length, and the mass m is connected to the two parts, what would be the natural period of the system?
Steam at 15 bar and 350 degrees C is expanded through a 50% reaction turbine to a pressure of 0.14 bar. The stage efficiency is 80% for each stage and the reheat factor is 1.05.
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