V Flange of Flange of shaft VB shaft BN B N 700 mm 1200 mm Solid bronze [G= 45 GPa; Tallow = 150 MPa] shaft VB and steel [ G = 80 GPa; Tallow 125 MPa] tube BN is connected at B through their flanges. An external torqe TB is applied at the flange of bronze shaft VB as shown. Initially, however, there is a 3 misfit on the connection at B, that is, torque TB is applied, the flange of shaft VB needs to twist by 3 first before the flange of tube BN starts twisting. Solid shaft VB is 90 mm in diameter. Tube BN has an outer diameter of 110 mm and a wall thickness of 5 mm. 1. What should the minimum value of TB to overcome the 3 misfit on flange B? 2. What are the maximum allowable internal torques for shaft VB and tube BN? 3. What is the maximum permissible value of TB ? 4. If TB is equal to its maximum permissible value, what is the minimum shear stress on tube BN? 5. If TB is equal to its maximum permissible value, what is the magnitude of the total angle of twist of the flange of bronze shaft VB? Express answer in degrees.