A $80\mathrm{.}3-$N backpack is hung from the middle of an aluminum wire, as the drawing shows. The temperature of the wire then drops by $\backslash (24\mathrm{.}8\backslash$mathrm$\{$C$\}^\{\backslash$circ$\}\backslash ).$ Find the tension in the wire at the lower temperature. Assume that the distance between the supports does not change, and ignore any thermal stress.