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The cantilevered bar in the figure has a circular cross section and is subject to bending and torsion. The normal stress due to bending in x=28 kpsi and the shear stress due to torsion is xz=15.3 kpsi. The change in diameter introduces a stress concentration. Determine the principal stresses and maximum principle shear stress at this position.
a rigid insulated tank that is initially evacuated is connected through a valve to a supply line that carries helium at
a lead bullet weighing 0.0200 lbf and traveling horizontally at 3000 fts is suddenly stopped by a perfectly rigid
A cylindrical bar of aluminum 19 mm (0.75 in) in diameter is to be deformed elastically by application of a force along the bar axis. Using E=10 psi (Modulus of Elasticity), determine the force that will produce an elastic reduction of 1e-4 in. in..
helium gas expands from 125 kpa 350k and 0.25m3 to 100 kpa in a polytropic process with n 1.667 or 53. is the work
a thin metal cylinder contains an ideal gas. the cylinder has a cross sectional area of 100 cm2. the surroundings
an adiabatic compressor compresses air from atmospheric pressure and 70 degf at a rate of 10000 acfm actual cubic feet
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a. calculate the density of air in lbmft3 at standard conditions 75f and 14.7 psia assume m 28.9 lbmlb-mol.b.
a cylinder fitted with a piston 10 lbm of r 134a at 100 psi and 140 f. the refrigerant is cooled at constant pressure
a pistoncylinder contains water with quality 75 at 200 kpa. slow expansion is performed while there is heat transfer
the rigid beam shown is supported by three cylindrical posts which rest on a rigid base a 20 mm dia. brass post at be
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