(a) Torque capacity of one pair of surfaces, assuming uniform wear is 20.0 Nm
(b) Total torque applied 50.9 Nm
(c) Number of contacting surfaces 4
(d) Actual torque per pair of surfaces is 12.7 Nm
(e) Actual axial force required is 2315.0 N
(f) Maximum torque occurs at inner radius,and is equal to 307.0 kN/m^2