(a) Please find the equation of the elastic curve for portion AB of the beam, (b) Please find the slope at A, (c) Please find the slope at B, (d) Please find the deflection at L/4, B 2L- -L/2- Figure 1 Q2 (30 P). You see the pressure tank in Figure 2. It has a wall thickness of 6 mm and butt- seams that form a B= 30 angle with the transverse plane. For a gauge pressure of 0.5 MPa. (a) Please find the normal stress perpendicular to the weld.