$5-103.$ If the solid shaft is made from red brass C $83400$ copper and it is subjected to a torque $\backslash ($ T$=8\backslash$mathrm$\{$kN$\}\backslash$cdot $\backslash$mathrm$\{$m$\}\backslash )$ at $\backslash ($ B $\backslash ),$ determine the maximum shear stress developed in segments $\backslash ($ A B $\backslash )$ and $\backslash ($ B C $\backslash ).$

Probs. $5-102/103$