A part at Belleh Fontem Manufacturing requires holes of the size 0.50plus or minus0.01 inches. The drill bit has a stated size of 0.50plus or minus0.005 inches and wears at the rate of 0.00017 inches per hole drilled. Give the most and least number of holes that can be drilled with one drill bit before it has to be replaced.

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

What is a monomer? how do they form a ploymer from the view point of chemical bonding?

What is creep? what is stress relaxation?