Two pieces of high-density polyethylene tubing are fitted together and firmly clamped at their ends. A load of 194 N is applied to the fitting. Tube (1) is 160 mm long, and tube (2) is 100 mm long. Both tubes have an outsider diameter of 22.0 mm and an inside diameter of 16.8 mm. Determine the load carried by tube (1).

Extra credit for this class is already built into the class!           Hint: Go to the 4th heading in the syllabus, IV. Class Format, and then read about Exam Reviews.  a) How many extra credit points are possible? b) How can you earn these extra credit points? 

A steel 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 7.8 N without stretching more than 0.00115 mm.

A load of P = 305 lb is applied to beam ABC. Bar (1) has a square cross section with a width of 1.11 in. If the normal stress in bar (1) is limited to 12 ksi, determine the factor of safety for bar (1). Let a = 37 in., b = 12 in., and c = 9 in.

Two pieces of high-density polyethylene tubing are fitted together and firmly clamped at their ends. A load of 134 N is applied to the fitting. Tube (1) is 155 mm long, and tube (2) is 100 mm long. Both tubes have an outsider diameter of 21.0 mm and an inside diameter of 15.6 mm. Determine the load carried by tube (1).

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 120 kN is applied to the assembly at A, two loads Q = 20 kN are applied at B, and two loads R = 160 kN are applied at C. Determine the total change in length of the assembly.L1 = 0.28 m, E1 = 194 GPa, A1 = 0.0014 m2L2 = 0.44 m, E2 = 202 GPa, A2 = 0.0005 m2L3 = 0.32 m, E3 = 106 GPa, A3 = 0.0016 m2

A short column is composed of two steel segments, each with a length of 5.9 in. Segment (1) is hollow with an outside diameter of 1.00 in. and a wall thickness of 0.16 in. Segment (2) is hollow with an outside diameter of 1.32 in. and a wall thickness of 0.16 in. How much shorter does the column become after a load of P = 880 lb is applied?

A load of P = 445 lb is applied to beam ABC. Bar (1) is made of aluminum and has a square cross section with a width of 1.16 in. Determine the magnitude of the change in length of bar (1) due to the load. Let a = 37 in., b = 15 in., and c = 11 in.

A 3D printed polymer rod measures 122.00 mm in length while on the heated print bed at 65.0°C. After cooling to room temperature at 20.8°C the rod measures 121.57 mm in length. Determine the coefficient of thermal expansion of the polymer.

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 90 kN is applied to the assembly at A, two loads Q = 40 kN are applied at B, and two loads R = 150 kN are applied at C. Determine the total change in length of the assembly.L1 = 0.26 m, E1 = 192 GPa, A1 = 0.0014 m2L2 = 0.42 m, E2 = 212 GPa, A2 = 0.0003 m2L3 = 0.34 m, E3 = 108 GPa, A3 = 0.0015 m2