Review The member has a square cross section and is subjected to a resultant internal bending moment of M = 900 N m as shown in the figure below. Suppose that 30° (Figure 1) Part A Determine the stress at the corner A. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. Figure A 250 mm B 125 mm 125 mm E D < 1 of 1 M < HÅ ? σA = -.126 kPa Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B Determine the stress at the corner B. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension.