$10-2.$ While the bolt is at a temperature of $23C,$ the bolt below is under a tension of $2,400N$ holding together two pieces of custom$-$made steel. The bolt has a diameter of $0\mathrm{.}635cm,$ is $6\mathrm{.}000cm$ long, and is made of A$572,$ Grade $50$ steel. Furthermore, the distances are $l_1=2\mathrm{.}660cm$ and $l_2=0\mathrm{.}950cm.$ Let the two pieces of steel being held together have a zero coefficient of thermal expansion. This connection is being made within a cryogenic system causing it to experience large temperature variations. Determine if the bolt will return to a tension of $2,400N$ if it is cooled to $-210C$ for a long period of time, then, reheated to $23C.$

Figure $10-30$