A 20-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 = 20 lb. Let a = 55 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.

A torque of TC = 870 N·m is applied to the aluminum [G = 74 GPa] shaft. Segment (1) has a diameter of 76 mm, and segment (2) has a diameter of 40 mm. Determine the angle of twist at C. Let L1 = 0.70 m and L2 = 0.30 m.

A force of P = 22 N is applied to a lever at the end of a composite shaft. Sleeve (1) has a polar moment of inertia of 93,400 mm4 and a shear modulus of 1.7 GPa. Core (2) has a polar moment of inertia of 23,000 mm4 and a shear modulus of 1.6 GPa. Determine the torque produced in core (2). Let a = b = 225 mm.

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.

A 32-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 = 32 lb. Let a = 46 in.

A load of P = 21 N is applied a = 170 mm from the center of a 14 mm bolt. Determine the torque applied to the bolt.

A torque of TC = 870 N·m is applied to the aluminum [G = 69 GPa] shaft. Segment (1) has a diameter of 79 mm, and segment (2) has a diameter of 40 mm. Determine the angle of twist at C. Let L1 = 0.58 m and L2 = 0.36 m.

Gear B has 10 teeth, and gear C has 18 teeth. If a torque of 16 lb·in. and a speed of 2,050 rpm is required at A, determine the minimum power that the motor must provide.

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.