SOLVE EACH PART USING MOHR's Circle. Thank you

$9-31.$ A paper tube is formed by rolling a cardboard strip in a spiral and then gluing the edges together as shown. Determine the shear stress acting along the seam, which is at $\backslash (50^\{\backslash$circ$\}\backslash )$ from the horizontal, when the tube is subjected to an axial compressive force of $200$ N $.$ The paper is $2$ mm thick and the tube has an outer diameter of $100$ mm $.$

$9-32-$ solve for normal stress acting perpendicular to the seam

$9-33.$ The $2-$in$.-$diameter drive shaft AB on the helicopter is subjected to an axial

tension of $10000$ lb and a torque of $300$lb$*$ft$.$ Determine the principal stresses and

the maximum in$-$plane shear stress that act at a point on the surface of the shaft.