(Solved): The two cylindrical rod segments shown in the figure below (Figure 1) are fixed to the rigid walls ...

The two cylindrical rod segments shown in the figure below (Figure 1) are fixed to the rigid walls such that there is a gap of 0.01 in between them when $T_1=75^{\circ }\mathrm{F}$. Each rod has a diameter of $1.6\mathrm{in}$. Take ${\alpha }_{\mathrm{al}}=13\left(10^{-6}\right)/{}^{\circ }\mathrm{F},E_{\mathrm{al}}=10\left(10^3\right)\mathrm{ksi},{\left({\sigma }_{\mathrm{Y}}\right)}_{\mathrm{al}}=40\mathrm{ksi}$, ${\alpha }_{\mathrm{cu}}=9.4\left(10^{-6}\right)/{}^{\circ }\mathrm{F},{\left({\sigma }_{\mathrm{Y}}\right)}_{\mathrm{cu}}=50\mathrm{ksi}$, and $E_{cu}=15\left(10^3\right)\mathrm{ksi}$. What larger temperature $T_2$ is required in order to just close the gap? Express your answer to three significant figures. Incorrect; Try Again; 3 attempts remaining Part B Determine the magnitude of the average normal stress in each rod if $T_2=290{}^{\circ }\mathrm{F}$. Express your answer to three significant figures and include appropriate units. Figure 1 of 1