A2-ft diameter pump produces 30 ft head and delivers 500 gpm at 1000 rpm. determine the performance parameters (gpm, head, sp. speed, and power) at 1100 rpm. determine the diameter of the pump for the new performance data obtained. now assume that power required of two pumps are the same (p1 p2), determine the diameter of the new pump and select the pump for this case.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?

What is creep? what is stress relaxation?