Problem 5.85 Problem 5.85 The Am1004-T61 magnesium tube is bonded to the A-36 steel rod. A torque of 8 kN·m is applied to end A. The shear modulus of elasticity for Am1004-T61 magnesium alloy is 18 GPa, and for A-36 steel is 75 GPa (Figure 1) Part A Determine the maximum shear stress in magnesium. Express your answer to three significant figures and include the appropriate units. Figure 1 of 1 900 mm 80 min 40 mm e a P (Tmg) max Value Units Submit My Answers Give Up Part B Determine the maximum shear stress in steel. Express your answer to three significant figures and include the appropriate units. x 3 ? (Tet)max= Value Units Submit My Answers Give Up Part C P Determine the shear stress on the inside surface of the magnesium tube Express your answer to three significant figures and include the appropriate units.