a. If the embodied energy per ton of product (M3) in the following process is 44.4 GJ/t, what is the mass of metal Mw? [6] System Boundary Waste Heat E, = 25 GJ/t Secondary Scrap Metal M = 0.2t Production Waste Metal M=?t Ore with a Product with mass of My = 1 t of M. of Primary M, Product Mines Metal Fabrication Use Metal in it Production M Manufacturing M Waste Heat = 31 GJ/t Slag with M = 0.1t of Metal Waste +E;= 5 GJ/t Heat Waste Heat + Em = 5 GJ/t a. If the embodied energy per ton of product (M3) in the following process is 44.4 GJ/t, what is the mass of metal Mw? [6] System Boundary Waste Heat E, = 25 GJ/t Secondary Scrap Metal M = 0.2t Production Waste Metal M=?t Ore with a Product with mass of My = 1 t of M. of Primary M, Product Mines Metal Fabrication Use Metal in it Production M Manufacturing M Waste Heat = 31 GJ/t Slag with M = 0.1t of Metal Waste +E;= 5 GJ/t Heat Waste Heat + Em = 5 GJ/t