At 21.5C, an aluminum ring has an inner diameter of 9.000 0 cm and a brass rod has a diameter of 9.030 0 cm.

At 21.5°C, an aluminum ring has an inner diameter of 9.000 0 cm and a brass rod has a diameter of 9.030 0 cm.If only the ring is warmed, what temperature must it reach so that it will just slip over the rod?If both the ring and the rod are warmed together, what temperature must they both reach so that the ring barely slips over the rod?