*4-44. The assembly consists of two red brass C83400 copper rods AB and CD having a diameter of 30 mm, a 304 stainless steel rod EF having a diameter of 40 mm, and a rigid member G. If the supports at A, C and Feach have a stiffness of k = 200 MN/m, determine the average normal stress developed in the rods when the load is applied. -300 mm- -450 mm 40 kN PA B E F 30 mm 40 mm 40 kN C D 30 mm G Prob. 4-44