Water is to be withdrawn from a S-m-high water reservoir by drilling a 1.5-cm-diameter hole at the bottom surface. Disregarding the effect of the kinetic energy correction factor, determine the flow rate of water through the hole if:

a. The entrance of the hole is well-rounded.
b. The entrance is sharp-edged.

What precautions should you take to prevent injuries when dealing with heavy loads?

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

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?