Consider cutting tool materials, answer which cutting material is suitable, considering manufacturing costs, for each of the major metallic alloy (al alloys, zinc alloy, cu alloy, steels, ti alloys, ni alloys)?

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

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false