Two wrenches are used to tighten the pipe. The pipe is made from a material having an allowable shear stress of τ(allow) = 95MPa. The pipe has an outer diameter of 25mm and inner diameter of 20mm. Determine the maximum torque that can be applied to the pipe without causing failure.
a) 294.52Nm
b) 182.96Nm
c) 330.75Nm
d) 415.89Nm
