In the shear mode II of fracture, the crack propagates _________to the forces that produce the shear stress.
What will be an ideal response?
parallel
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Mesons are composed of
A. any odd number of quarks. B. three quarks of matching color. C. three quarks of three different colors. D. a colorless quark-antiquark pair.
Can two different forces, acting through the same point, produce the same torque on an object?
What will be an ideal response?
MHD allows the efficiency of conventional power plants to increase
What will be an ideal response?
Denver, Colorado and Madrid, Spain are at nearly the same latitude (about 40°N). If you travel from Denver to Madrid staying at the same latitude the entire trip, will you be taking the shortest route?
A) No. The shortest path on the Earth has to be a great circle. B) No. The shortest path on the Earth must always be a straight line. C) Yes. A flat map of Earth shows this path to be straight, and a path that is straight on a map is the shortest path. D) Yes. Staying at a constant latitude guarantees the shortest path.