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A 3D printed polymer rod measures 157.00 mm in length while on the heated print bed at 51.9°C. After cooling to room temperature at 22.0°C the rod measures 156.66 mm in length. Determine the coefficient of thermal expansion of the polymer.

A short column is composed of two steel [E = 30,000 ksi, ν = 0.30] segments, each with a length of 4.2 in. Segment (1) is hollow with an outside diameter of 1.20 in. and a wall thickness of 0.20 in. Segment (2) is hollow with an outside diameter of 1.60 in. and a wall thickness of 0.20 in. How much shorter does the column become after a load of P = 830 lb is applied?

A load of P = 225 lb is applied to beam ABC. Determine the normal force in bar (1). Let a = 31 in., b = 16 in., and c = 10 in.

A load of P = 395 lb is applied to beam ABC. Determine the normal force in bar (1). Let a = 35 in., b = 15 in., and c = 9 in.

A steel [E = 195 GPa] rod with a circular cross section is used as a weight hanger. The straight part of the rod is 130 mm long. Determine the minimum diameter D required if this portion of the rod must hold a tensile load of 11.0 N without stretching more than 0.00310 mm.

A 3D printed polymer rod measures 120.00 mm in length while on the heated print bed at 68.3°C. After cooling to room temperature at 22.0°C the rod measures 119.62 mm in length. Determine the coefficient of thermal expansion of the polymer.

If Canada can manufacture 40 iPhones for every TV it produces and Mexico can produce 20 iPhones for every TV it produces, then we know for certain that ____[a]____ has the ____[b]____ advantage in tv production.

A load of P = 315 lb is applied to beam ABC. Bar (1) has a square cross section with a width of 0.94 in. If the normal stress in bar (1) is limited to 14 ksi, determine the factor of safety for bar (1). Let a = 30 in., b = 15 in., and c = 11 in.

Lobner’s Candle Company reported beginning assets of $400,000 and liabilities of $200,000.  During the year, they reported net income of $225,000, declared dividends of $88,000 and issued $60,000 of common stock.  What is their ending Stockholders’ Equity balance?

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 110 kN is applied to the assembly at A, two loads Q = 30 kN are applied at B, and two loads R = 140 kN are applied at C. Determine the total change in length of the assembly.L1 = 0.28 m, E1 = 190 GPa, A1 = 0.0014 m2L2 = 0.44 m, E2 = 208 GPa, A2 = 0.0003 m2L3 = 0.38 m, E3 = 110 GPa, A3 = 0.0015 m2