Who wrote Principia? 

Part 3. Multiple Choice (20 questions, 2 points each)

Two plates are connected with two bolts and transmit load P = 6.0 kN. Each plate is 5.4 mm thick, and each bolt has a diameter of 10.5 mm. Determine the average shear stress in the bolts.

The rigid beam BC is supported by rods (1) and (2). For a uniformly distributed load of w = 2.7 kN/m, determine the force in rod (1). Assume a = 2.50 m and L = 4.50 m.

The arrows in the image are pointing to:

A steel [E = 215 GPa, ν = 0.293] rod with a circular cross section is used as a weight hanger. The straight part of the rod is 145-mm long and has a diameter of 4.2 mm. Determine the magnitude of the lateral strain in this portion of the rod when it supports a tensile load of 11.0 N.

Patents give the inventor exclusive use of the invention forever.

Before an automotive engine is started, its timing belt has a length of 39.00 in. and a temperature of 75°F. At the engine operating temperature of 220°F, it is determined that the belt has elongated to 39.04 in. What is the coefficient of thermal expansion of the belt?

A square that was initially a x a in size is deformed into the following shape. If a = 26 mm, b = 10 mm, and c = 24 mm, determine the magnitude of the shear strain at D. (Use the small-angle approximation sin γ ≈ tan γ ≈ γ.)

List the three domains of life.