His Excellency Nomen Nescio, President-for-Life of the Peoples' Democratic Republic of Barataria, wants to obtain some weapons-grade uranium (for entirely peaceful purposes, of course). An independent scientist, Dr. Juan Fulano, is offering to build a molecular laser isotope separation device (MLIS). (a) (3 points) Dr. Fulano estimates that a single stage of his MLIS system will take natural uranium feed and produce a heads stream enriched to 3.0wt% and a tails stream depleted to 0.35wt%. Compute the stage separation factor. (b) (3 points) How many MLIS stages would be required to produce 94wt%235U, assuming a waste assay of 0.24wt%235U ? (c) (3 points) How many kilograms of natural uranium feed would be required to produce 60kg of 94 wt\% 235U assuming a waste assay of 0.24 wt\% 235U ? (d) (3 points) How many SWUs would be required to produce 60kg of 94 wt %235U, with a waste assay of 0.24 wt\% 235U