The gear assembly shown in Figure P6.82/83 is subjected to a torque of T C = 140 N-m. Shafts (1) and (2) are solid 20-mmdiameter steel shafts, and shaft (3) is a solid 25-mm-diameter steel shaft....

The gear assembly shown in Figure P6.82/83 is subjected to a torque of T_C
= 140 N-m. Shafts (1) and (2) are solid 20-mmdiameter steel shafts, and shaft (3) is a solid 25-mm-diameter steel shaft. Assume that L = 400 mm and G = 80 GPa. Determine

(a) the maximum shear stress magnitude in shaft (1).

(b) the maximum shear stress magnitude in shaft segment (3).

(c) the rotation angle of gear E.

(d) the rotation angle of gear C.