Below are listed the atomic weight, density and atomic radius for three hypothetical metal alloys. For each determine whether its crystal structure is FCC, BCC, or simple cubic and then justify your determination. Alloy Atomic Weight (g/mol) Density (g/cm^3) Atomic Radius (nm)A 43.1 6.40 0.122B 184.4 12.30 0.146C 91.6 9.60 0.137

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Burgers vector is generally parallel to the dislocation line. a)-true b)-false