The Stanford linear accelerator contains hundreds of brass disks tightly fitted into a steel tube (see figure). The coefficient of linear expansion of the brass is 2.00 x 10-3 per Co. The system was assembled by cooling the disks in dry ice (-57 C) to enable them to just slide into the close-fitting tube. If the diameter of a disk is 80.00 mm at 43C, what is its diameter in the dry ice? brass disk steel tube O 78.400 mm O 79.998 mm O 80.160 mm O 79.840 mm O none of these