* L1= 20" * E1 = 30 メ10^6 pSi * r1 = 20 x 10^5 in/F * A1 = 2 in^2 * L2 = 30" * E2 = 10 x

10^6 psi * r2 =15×10^5 in/in/'F * A2= 3.0 in^2 1) Calculate the total expansion at B f wall at B if wall at B did not exist. 2) If both walls at A E B exist. Calculate the reactions at A E B. (3) Calculate the stresses in (1) E (2) 4) Calculate the deflection at C.