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A 38-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 = 1.4615 lb/in. Let a = 40 in. and b = 26 in.

A torque of TC = 750 N·m is applied to the aluminum [G = 69 GPa] shaft. Segment (1) has a diameter of 75 mm, and segment (2) has a diameter of 38 mm. Determine the angle of twist at C. Let L1 = 0.64 m and L2 = 0.32 m.

What factor is not important when choosing a model organism?

A load of P = 77 N is applied a = 110 mm from the center of a 9 mm bolt. Determine the torque applied to the bolt.

A 57-lb child and a 178-lb adult are on an oak beam. Determine the vertical reaction force at the right end of the beam. Let a = 22 in., b = 43 in., and c = 27 in.

A torque of T = 255 lb·in. is applied to two pulleys and a copper-alloy shaft. Determine the minimum diameter of the shaft if its shear yield strength is 23 ksi.

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 98,600 mm4 and a shear modulus of 0.9 GPa. Core (2) has a polar moment of inertia of 32,600 mm4 and a shear modulus of 0.7 GPa. Determine the torque produced in core (2). Let a = b = 210 mm.

Gear A has 71 teeth, and gear B has 46 teeth. If a torque of 25 lb·in. and a speed of 870 rpm is required at C, determine the minimum power that the motor must provide.

A 83-lb child and a 28-lb cardboard box are on an oak beam. Determine the vertical reaction force at the right end of the beam. Let a = 24 in., b = 33 in., and c = 41 in.

A beam has dimensions of b = 18 in., h = 22 in., and d = 19.5 in. and is reinforced with 4 No. 5 bars. The concrete strength is 7,900 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.