Learning Goal: The cantilever beam ABC (Figure 1)shown is composed of two solid cylindrical sections: AB has a diameter of d = 4.00 in and BC has a diameter of d = 7.00 in. The two moments, M = 56.0 kip-ft and MB = 53.0 kip - ft, are applied externally at points A and B, respectively. Assume EI is constant with E = 2.9 x 107psi and that a = 3.00 ft and b = 2.50 ft. After drawing a free-body diagram, the first step in analyzing the deflections of beam ABC is to determine the internal bending moments the different sections. Determine the bending moments in AB, MAB, and in BC, MBC- Express your answers in kip. ft to three significant figures, separated by a comma. View Available Hint(s) MAB, MBC = 56.0,109 kip ft, kip-ft Figure MA d Ma 1 of 1 Submit Previous Answers Correct Part B - Moments of inertia for portion AB and portion BC of the beam Determine the moments of inertia for AB, IAB, and BC, IBC. Express your answers in in to three significant figures, separated by a comma. View Available Hint(s) 1 11 vec IAB, IBC 12.6, 135 Submit Previous Answers Incorrect; Try Again; 5 attempts remaining Part C - Radius of curvature for AB and BC ? in4, in4 Determine the radius of curvature for AB, PAB, and for BC, PBC- Express your answers in feet to three significant figures, separated by a comma. View Available Hint(s) PAB, PBC= 11 vec ? ft, ft