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 = 45 in.

A 19-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 = 0.6786 lb/in. Let a = 35 in. and b = 28 in.

A torque of T = 460 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 20 ksi.

Gear A has a diameter of 1.91 in., and gear B has a diameter of 2.84 in. If the pointer needs to be rotated 163° CW, how much should the motor be rotated?

A torque of TC = 550 N·m is applied to the aluminum [G = 69 GPa] shaft. Segment (1) has a diameter of 69 mm, and segment (2) has a diameter of 34 mm. Determine the angle of twist at C. Let L1 = 0.55 m and L2 = 0.36 m.

A torque of T = 265 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 22 ksi.

A 60-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 = 25 in., b = 50 in., and c = 23 in.

Loads P = 45 N, Q = 35 N, and R = 45 N are applied to the structure. Determine the torque generated in segment (1). Let a = 105 mm, b = 80 mm, and c = 40 mm.

Gear A has a diameter of 1.36 in., and gear B has a diameter of 1.81 in. If the pointer needs to be rotated 137° CW, how much should the motor be rotated?

A torque of T = 330 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 19 ksi.