A metal ball is just able to pass through a metal ring. When Anette increases the temperature of the ball, however, it will not pass through the ring. What would happen if she instead increased the temperature of the ring, rather than the ball? Will the size of the hole increase, stay the same, or decrease?
Solution 42E When the temperature of the ball is increased, it will expand and hence will not be able to pass through the hole. But if she increases the temperature of the ring, the hole will increase in size. This is because of the expansion of the ring and its inner with temperature. The ball will now be able to pass through the hole.