Explain the specific work and specific heat transfer
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An axially loaded brass strut hinged at both ends is 1m long and is of a square cross-section of sides 20mm. What should be the dimension of a steel strut of the same length and subjected to the same axial loads?
Twenty pounds of a gas mixture is contained in a tank with volume 30 cubic feet at 30 psia and 70 F. Using constant-specific heat theory, find the final temperature if 400 Btu of heat is added to the gas mixture.
Saturated water vapor at 60°C has its pressure decreased to increase the volume by 10% keeping the temperature constant. To what pressure should it be expanded?
Determine the magnitude and direction of the net electrostatic force on the charge at x = +3.0 m. Specify the direction relative to the -x axis.
Carbon dioxide flows through a device entering at 300 K, 200 kPa and leaving at 500 K. The process is steady state polytropic with n = 3.8 and heat transfer comes from a 600 K source.
Sigma x = sigma y = 80 bar sigma zz = 100 bar tau xy = tau xz = tau yz = 0 Pw = 80 bar. Derive the general Kirsch equation.
A 3.6 vC change is moved from a position where its electric potential energy is 7.2 mJ to a position where its potential energy is 1.8 mJ. What is the change in potential from, the initial position to the final position?
An expansion in a gas turbine can be approximated with a polytropic process with exponent n = 1.25. The inlet air is at 1200 K, 800 kPa and the exit pressure is 125 kPa with a mass flow rate of 0.75 kg/s. Find the turbine heat transfer and power o
A centrifugal compressor takes in ambient air at 100 kPa, 15°C, and discharges it at 450 kPa. The compressor has an isentropic efficiency of 80%. What is your best estimate for the discharge temperature?
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