A circular tube is subjected to torsion by torques T applied at the ends. The bar is 0.5m. long and the inside and outside diameters are 30mm and 40mm respectively. It is determined by measurement that the angle of twist is 3.600 when the torque is 650 N.m. a. Calculate the maximum shear stress in the tube. b. Calculate the shear modulus of elasticity. c. Calculate the maximum shear strain in radians.

Please solve all part's correctly

A helical spring used in an automobile suspension is having a wire diameter of 7mm and an outside diameter of 72mm. The spring has 16 active coils. If the permissible shear stress of the spring material is 345 N/mm2 and the Modulus of rigidity is 83 kN/mm2.   a) Calculate the axial load in N and the deflection of the spring in mm, considering the effect of curvature. b) Calculate the value of axial load in N neglecting the effect of curvature.

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3. Calculate the contact stress between a 100-mm- diameter steel ball weighing 500 g sitting on a hardened steel surface plate.

5.5 Please help. Provide Free Body Diagram, labeled with appropriate quantities to better understand. Also solve. Thank you.

4) The C-clamp shown below has rectangular cross-section A-A that is 33 mm tall by 12 mm wide and the material is class 50 gray cast iron. Determine maximum tensile stress and factor of safety for clamping force F = 3.2 kN. Ignore stress concentration factors. See Section 4.9 in Norton for help with curved beams. MPa N O MAX |F F 60 mm 40 mm 12 mm 33 mm 33 mm Section A-A A