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A solid circular shell is made of steel that may be treated as perfectly elastoplastic. The shear stress yielding point for the steel is 165 MPa. The modulus of rigidity for the steel is 80 GPa. A torque is applied such that the shear stress reaches its yield point at 1/2 the radius of the shaft.Find the shear strain at the outer surface of the shell
calculate the position of the quasi-Fermi levels for electrons and holes with respect to the intrinsic level (assume that ni=1.5x10^10cm^-3).
Determine the mean effective pressure of an ideal Otto cycle that uses air as the working fluid; it's state at the beginning of compression is 13 psia and 56°F; it's temperature at the end of combustion is 1,525°F; and it's compression ratio is 11. U..
An H2O boiler is designed to take 7000 lbm/hr in a steady-state process from saturated liquid at 1200 psi to an exit temperature of 900 degrees F. What is the required rate of heat transport for the boiler?
the adjoining figure illustrates a piston-cylinder arrangement. this cylinder contains helium at 21oc and 1.379 mpa.
If the wide-flange beam is subjected to a share of V = 25 kip, determine the maximum shear stress in the beam.
A steel rod 1 cm in diameter and 30 cm long protrudes from a steel surface at 150 C. The rod is surrounded by air at 10 C with a convective heat transfer coefficient of 10 W/m2 C. The thermal conductivity of steel is 114 W/m C. Determine the heat ..
a distillation column as shown in the figure to the right is a device used to separate components with different
a gas initially at p1 1 bar and occupying a volume of 1 liter is compressed within a piston-cylinder assembly to a
Water at 100 kPa and 400 K is heated electrically, adding 700 kJ/kg in a constant pressure process. Find the final temperature using- The ideal gas table A-8 (Ideal gas properties of various substances, Entropies at 0.1 MPa (1-bar) pressure, mass bas..
I need to be able to derive the velocity profile from the navier-stocks equations. Basically from scratch. Problem 4.36 in the fluid mechanics seventh edition Frank M. White In need to get derived down to the Differential form and find the constant o..
An octave is defined as a doubling of the frequency. The claim is made that a low-pass Butterworth filter of order n has a roll-off (attenuation) of 6n dB/octave. Calculate the gain in dB for a second-order filter for the cut-off frequency itself, an..
The discharge coefficient of a Venturimeter was found to be constant for rates of flow exceeding a certain value. Show that for this condition the loss of head due to friction in the convergent parts of the meter can be expressed as KQ2 m where K is ..
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