Extracted text: A stepped shaft ABCD consisting of three solid circular segments is subjected to three torques as shown in the figure. The length of each segment is 24.0 in. and the diame- ters are 3.0 in., 2.5 in., and 2.0 in. The material is steel with shear modulus of elasticity G = 11.6 × 10³ ksi. (a) Calculate the maximum shear stress Tmax in the shaft. (b) Calculate the angle of twist p (in degrees) at end D. 12.0 k-in. 9.0 k-in. 9.0 k-in. |3.0 in. | 2.5 in. | 2.0 in. D. A в 1 -24 in.- 24 in. -24 in.-