$1.)$ Knowing that the allowable normal stress in section $\backslash ($ a$-$a $\backslash )$ is $55$ MPa $,$ determine the largest force that can be exerted by the press shown. Note that the cross section shown is a top down view. $[$Answer: $\backslash (\backslash$mathrm$\{$P$\}=10\mathrm{.}23\backslash$mathrm$\{$kN$\}\backslash )]$