A 60 wt\% Ni-40 wt\% Cu alloy (Animated Figure 9.3a ) is slowly cooled from 1400C(2550F) to 1150C(2100F). (a) At what temperature does the first solid phase form? C (b) What is the composition of this solid phase? % wt Ni (c) At what temperature does the last of the liquid solidify? C (d) What is the composition of this last remaining liquid phase? % wt Ni Composition = Composition = Temperature = Temperature =