Ashaft rotating at 2,500 rpm is transmitting a power of 15 hp. (a) if the diameter of the shaft is 1.5 in, determine the maximum shear stress. (b) if the circular shaft is to be replaced with a square shaft, what would be the size to that the maximum shear stress remains the same?

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?

What are the major differences between injection molding and extrusion?