At 11°C, an aluminum ring has an inner di-
ameter of 7 cm and a brass rod has a diameter
of 7.03 cm.
If the temperature coefficient of expansion
for brass is 1.9 x 10-5 (°C)-¹ and the temper-
ature coefficient of expansion for aluminum is
2.4 x 10-5 (°C) -¹, to what temperature must
the ring be heated so that it will just slip over
the rod?
Answer in units of °C.