At room temperature (708F) a 0.02-in. gap exists between the ends of the rods shown. At
Chapter 9, Problem 9.46(choose chapter or problem)
At room temperature \(\left(70^{\circ} \mathrm{F}\right)\) a 0.02-in. gap exists between the ends of the rods shown. At a later time when the temperature has reached \(320^{\circ} \mathrm{F}\), determine (a) the normal stress in the aluminum rod, (b) the change in length of the aluminum rod.
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