To make a secure fit, rivets that are larer than the rivet hole are often used, and the rivet is cooled (usually in dry ice) before it is placed in the hole. A steel rivet 1.872 cm in diameter is about to be placed in a hole 1.870 cm in diameter in a metal at 20.0. To what temperature must the rivet be cooled in order to fit into the hole?

a. Sketch the situation, defining all your variables.

b. What physics equation(s) will you utilize in order to solve this problem? For each equation you list, give a justification for why it applies to this situation.

c. Apply your equation(s) to solve the problem as an algebraic expression(s).

d. Calculate your numerical answer(s). Show the units of your answer(s), and how you got them.