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A 81-lb child and a 39-lb cardboard box are on an oak beam. Determine the magnitude of the largest shear force (consider both positive and negative values) in the beam. Let a = 21 in., b = 32 in., and c = 41 in.

A 49-N eagle sits on a tee-shaped post that has a diameter of 47 mm. Determine the magnitude of the largest normal stress in the vertical part of the post. Let a = 0.30 m be the distance from the eagle to the centroid of the post.

Determine the magnitude of the moment MA for the cantilever beam, where w = 6 kN/m, M = 12 kN-m, and L = 7 m.

If Mz = 3,000 lb-ft, find the magnitude of the bending stress at a point H. For the beam cross section, assume b = 3.750 in. c = 1.500 in. d = 2.625 in.t = 0.375 in. The centroid of the cross section is located 1.393 in. above the bottom surface of the beam. The moment of inertia about the z axis is 3.6198 in.4.

Loads P = 455 N and Q = 675 N act on an oak beam. Determine the magnitude of the largest bending moment (consider both positive and negative values) in the beam. Let a = 0.7 m and b = 1.8 m.

If Mz = 14,000 lb-ft, find the magnitude of the bending stress at a point H. For the beam cross section, assume b = 6.250 in. c = 2.500 in. d = 4.375 in.t = 0.625 in. The centroid of the cross section is located 2.321 in. above the bottom surface of the beam. The moment of inertia about the z axis is 27.9309 in.4.

Loads P = 390 N and Q = 860 N act on an oak beam. Determine the magnitude of the largest bending moment (consider both positive and negative values) in the beam. Let a = 0.5 m and b = 1.6 m.

A 65-lb child and a 162-lb adult are on an oak beam. Determine the magnitude of the largest shear force (consider both positive and negative values) in the beam. Let a = 22 in., b = 49 in., and c = 21 in.

A polymer beam of length L = 72 mm supports a load of P = 2.0 N at its center. The beam has cross-sectional dimensions b = 2.2 mm and h = 7.4 mm. Determine the value of Q that would be used to calculate the maximum horizontal shear stress.

Load P = 2.6 lb is produced at the tip of a Regal Tip Elite 7B drumstick as a percussionist strikes a drumhead. The hickory shaft has a diameter of 0.61 in. and a length of L = 12.0 in. from the center of the tip to the percussionist’s hand. Assuming the percussionist’s hand acts like a fixed support and that the shaft has a constant diameter, determine the magnitude of the maximum horizontal shear stress in the shaft.