A square that was initially a x a in size is deformed into the following shape. If a = 24 mm, b = 6.9 mm, and c = 23 mm, determine the magnitude of the shear strain at C.

A qualitative researcher returns preliminary findings to participants for confirmation. Which strategy is being used? 

Before an automotive engine is started, its timing belt has a length of 41.00 in. and a temperature of 70°F. At the engine operating temperature of 205°F, it is determined that the belt has elongated to 41.04 in. What is the coefficient of thermal expansion of the belt?

Three rubber bands are shown before and after being stretched. Before stretching, bands A, B and C have lengths of 80 mm, 120 mm, and 155 mm, respectively. After stretching, band A has a length of 95 mm, while bands B and C each have a length of 190 mm. Determine the minimum normal strain in the bands.

A load of 19 kN is applied through a pin connection and a square bearing plate to the end of a beam that has a rectangular cross section. The base of the beam’s cross section is 76 mm and the height is 170 mm. The size of the bearing plate is 90 mm. Determine the bearing stress between the plate and the beam.

Axial loads are applied with rigid bearing plates to the solid cylindrical rods shown. If F1 = 35 kips, F2 = 18 kips, F3 = 25 kips, and F4 = 36 kips, determine the absolute value of the axial load in rod (2).

The rigid beam BC is supported by rods (1) and (2). For a uniformly distributed load of w = 2.2 kN/m, determine the force in rod (1). Assume a = 3.90 m and L = 5.70 m.

Three rubber bands are shown before and after being stretched. Before stretching, bands A, B and C have lengths of 85 mm, 110 mm, and 160 mm, respectively. After stretching, band A has a length of 100 mm, while bands B and C each have a length of 200 mm. Determine the maximum normal strain in the bands.

Rigid pipe (2) is supported by a pin connection at C and tie rod (1). The structure supports a load P = 20 kN at pin B. Assume x1 = 2.8 m, x2 = 1.1 m, and y1 = 3.9 m. Determine the force in tie rod (1).

Rigid pipe (2) is supported by a pin connection at C and tie rod (1). The structure supports a load P = 11 kN at pin B. Assume x1 = 3.5 m, x2 = 1.7 m, and y1 = 4.3 m. Determine the force in tie rod (1).