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A 39-lb cardboard box sits on an oak beam. Determine the maximum bending moment in the beam if the weight is modeled as concentrated load P = 39 lb. Let a = 49 in.

A 36-lb cardboard box sits on an oak beam. Determine the maximum bending moment in the beam if the weight is modeled as distributed load w = 1.6364 lb/in. Let a = 35 in. and b = 22 in.

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 8 No. 7 bars at a depth of 24 in. The top row contains 6 No. 6 bars at a depth of 18.5 in. Determine the effective (centroidal) depth, d, of the steel.

Gear A has a diameter of 1.94 in., and gear B has a diameter of 2.70 in. If the pointer needs to be rotated 111° CW, how much should the motor be rotated?

A torque of TC = 840 N·m is applied to the aluminum [G = 73 GPa] shaft. Segment (1) has a diameter of 71 mm, and segment (2) has a diameter of 39 mm. Determine the angle of twist at C. Let L1 = 0.67 m and L2 = 0.39 m.

A load of P = 19 N is applied to a hex wrench that has lengths a = 15 mm and b = 46 mm. Determine the torque applied to the set screw.

You are considering a beam design that has dimensions of b = 18 in., h = 28 in., and d = 25.5 in. The beam is singly reinforced with all of the reinforcement in a single row. The concrete strength is 9,100 psi, and the yield strength of the reinforcement is 60,000 psi. What cross-sectional area of reinforcement is needed to achieve a strain in the reinforcement of 0.0075?

A torque of TC = 610 N·m is applied to the aluminum [G = 72 GPa] shaft. Segment (1) has a diameter of 74 mm, and segment (2) has a diameter of 35 mm. Determine the angle of twist at C. Let L1 = 0.68 m and L2 = 0.40 m.

A 19-lb cardboard box sits on an oak beam. Determine the maximum bending moment in the beam if the weight is modeled as concentrated load P = 19 lb. Let a = 45 in.

A beam has dimensions of b = 16 in., h = 24 in., and d = 21.5 in. and is reinforced with 2 No. 8 bars. The concrete strength is 5,500 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.