To make a secure fit, rivets that are larger 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 1.871 cm in diameter is to be placed in a hole 1.869 cm in diameter in a metal at 24 ∘c. to what temperature must the rivet be cooled if it is to fit in the hole?

Explanation:

The steel rivet is going to retract due to temperature change:

D are the diameter

: thermal coefficient of expansion, for steel =12*10^(-6)/°C

We know the diameters and the final temperature equal 24°C

so:

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid