Which members are zero-force members? It is simply supported with a roller at A and a pin at E.

The truss is pin supported at A and rocker supported at E. Assume all members are pin connected. Determine the magnitude of the force in member DE. Let F1 = 300 lb, F2 = 650 lb, and L = 5 ft.

Determine the vertical reaction force at B. Let P1 = 130 kN, P2 = 90 kN, P3 = 170 kN, and a = b = c = d = 2.8 m.

Determine the magnitude of the largest shear force in the beam. Assume L = 3 ft, P = 700 lb, and w = 250 lb/ft.

The floor system of a hospital patient room consists of a 3-inch-thick reinforced concrete slab resting on four steel beams (A = 19.2 in.2), which are supported by two steel girders (A = 31.6 in.2). The girders, in turn, are supported by four columns. Determine the live load acting on column G.

The change in the shear load diagram is equal to the _______ under the _______.

Determine the vertical reaction force at A. Let M = 110 kN·m, w = 20 kN/m, P = 200 kN, a = 3 m, b = 8 m, and c = 3 m.

The floor system of a hospital operating room consists of a 5-inch-thick reinforced concrete slab resting on four steel beams (A = 16.9 in.2), which are supported by two steel girders (A = 32.7 in.2). The girders, in turn, are supported by four columns. Determine the live load acting on column G.

Determine the vertical reaction force at A. Let P1 = 46.0 kips, P2 = 48.3 kips, and a = b = c = d = 10 ft.

The floor system of an apartment building consists of a 5-inch-thick reinforced concrete slab resting on three steel floor beams, which are in turn supported by two steel girders. The areas of cross section of the floor beams and the girders are 19.3 in.2 and 34.3 in.2, respectively. Determine the dead load acting on beam AB.