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Why might a developer use CSS variables instead of hardcoding hex colors?

Rigid pipe (2) is supported by a pin connection at C and tie rod (1). The structure supports a load P = 13 kN at pin B. Assume x1 = 3.7 m, x2 = 2.5 m, and y1 = 3.4 m. Determine the force in tie rod (1).

Axial loads are applied with rigid bearing plates to the solid cylindrical rods shown. If F1 = 35 kips, F2 = 19 kips, F3 = 24 kips, and F4 = 37 kips, determine the absolute value of the axial load in rod (2).

Three plates are connected with two bolts and transmit load P = 6.0 kN. Each plate is 5.1 mm thick, and each bolt has a diameter of 9.2 mm. Determine the average shear stress in the bolts.

Two plates are connected with four bolts and transmit load P = 5.6 kN. Each plate is 5.4 mm thick, and each bolt has a diameter of 11.0 mm. Determine the average shear stress in the bolts.

Which CSS method is best for styling multiple pages on a website?

Two plates are connected with four bolts and transmit load P = 5.7 kN. Each plate is 5.5 mm thick, and each bolt has a diameter of 10.7 mm. Determine the average shear stress in the bolts.

Write CSS and HTML code to create a flex container with 3 items, horizontally centered, with a light grey background and 200px height. Enter your code directly in the answer box provided using the Preformatted text option.

A load of 11 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 90 mm and the height is 140 mm. The size of the bearing plate is 110 mm. Determine the bearing stress between the plate and the beam.

The rigid beam BC is supported by rods (1) and (2). For a uniformly distributed load of w = 2.3 kN/m, determine the force in rod (1). Assume a = 3.60 m and L = 5.70 m.