A driver accidentally bumped a fire hydrant creating a bending moment of 770 N·m in the pipe below. The pipe has an inside diameter of 175 mm and a wall thickness of 6 mm and is pressurized to 395 kPa. Determine the largest normal stress along the length of the pipe.

A 680 N person stands at the end of a 1.51 m cantilever beam. The beam has a base of 85 mm and a height of 150 mm. Determine the maximum bending stress in the beam.

A simply supported beam with dimensions of b = 16 in., h = 28 in., d = 25.5 in., and L = 23 ft supports a uniform service (unfactored) dead load of 2.266667 kips/ft including its own self weight plus a uniform service (unfactored) live load of 1.4 kips/ft. The beam is reinforced with five No. 6 Grade 60 bars. The concrete strength is 10,000 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Using the effective moment of inertia, determine the immediate mid-span deflection of the beam due to the combined service loads (dead plus live).The effective moment of inertia Ie = 9,103.4 in.4.

Force P = 45 N is applied to a lever at the end of a 30-mm-diameter shaft. Force Q = 905 N is applied directly to the shaft. Determine the normal stress σy at point K. Let a = 130 mm and b = 235 mm.

A 755 N person stands in the middle of a 2.61 m simply-supported beam. The beam has a base of 95 mm and a height of 155 mm. Determine the maximum horizontal shear stress in the beam.

Force P = 44 N is applied to a lever at the end of a 32-mm-diameter shaft. Force Q = 140 N is applied directly to the shaft. Determine the normal stress σy at point H. Let a = 130 mm and b = 240 mm.

Force P = 49 N is applied to a lever at the end of a 33-mm-diameter shaft. Force Q = 115 N is applied directly to the shaft. Determine the normal stress σy at point H. Let a = 140 mm and b = 200 mm.

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 10 No. 6 bars at a depth of 14 in. The top row contains 6 No. 6 bars at a depth of 10.5 in. Determine the effective (centroidal) depth, d, of the steel.

A rectangular beam has a cross section of b = 14 in., h = 28 in., and d = 25.5 in. It is reinforced with two No. 7 Grade 60 bars. The concrete strength is 8,200 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the assumed modulus of elasticity of the concrete, Ec.

Explain the difference in pediatric and adult anatomy and function.