10.16 (si units) total solidification times of three casting geometries are to be compared: (1) a sphere with diameter = 10 cm, (2) a cylinder with diameter and length both = 10 cm, and (3) a cube with each side = 10 cm. the same casting alloy is used in all three cases. (a) determine the relative solidification times for each geometry. (b) based on the results of part (a), which geometric element would make the best riser? (c) if the mold constant = 3.5 min/cm2 in chvorinov’s rule, compute the total solidification time for each casting. slader