(a) A circular copper ring at 19.0°C has a hole with an area of
9.95 cm2. What minimum temperature must it have so that
it can be slipped onto a steel metal rod having a cross-sectional
area of 10.0 cm2?
167 °C
(b) Suppose the ring and the rod are heated simultaneously. What
change in temperature of both will allow the ring to be slipped
onto the end of the rod? (Assume no significant change in the
coefficients of linear expansion over this temperature range.)
°C
Solution in the uploaded image
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