Show that the octahedral shear stress τ0 (the magnitude of the tangential component of the traction vector on the octahedral plane, that is, a plane whose normal makes equal angles with the three principal directions) is given by τ0 = q 2 3 IIs, where IIs is the second invariant of the stress deviator.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

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