Yielding is observed in an isotropic material for the circumstances described in (a) and (b). in each case, what uniaxial yield stress σy does this information predict, according to the maximum shear stress criterion and according to the von mises criterion? (a) torsion of a shaft in which the maxmium shear stress is 200 mpa.(b) a solid bar, 40 mm in diameter, loaded by a 480 kn axial tensile force and by fluid pressure of 160 mpa on its cylindrical surface.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.