1. Work problem 4.3-5. PProb. 4.3-5. The solid shaft in Fig. P4.3-5 is made of brass that has an allowable shear stress Tallow = 100 MPa and a shear modulus of elasticity G = 39 GPa. The length of the shaft is L 2 m. and over this length the allowable angle of twist is allow 0.10 rad. If the shaft is to be subjected to a maximum torque of 7 = 25 kN m, what is the required diameter of the shaft? P4.3-5, P4.3-6, and P4.3-7 00