A model for combining the electromagnetic, weak and strong nuclear interactions into a single basic force is a(n)
a. electroweak theory
b. GUT
c. quark theory
d. generalized theory of relativity
e. theory of strangeness
B
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Matter falling into a black hole arranges itself in the shape of a ____
a. spherical shell that is thick at the edges and thin closer to the center b. spherical shell that is thin at the edges and thick closer to the center c. disk that is thick at the outer edge, thin along the inner ring d. disk that is thin at the outer edge and thick closer to the center e. disk that is thin from the outer edge to the center
A blueberry will look black when illuminated with
A) red light. B) yellow light. C) magenta light. D) cyan light. E) none of the above
A flatbed truck is carrying a 20.0-kg crate up a sloping road inclined 15.0° above the horizontal. The coefficient of static friction between the crate and the bed is 0.400
What is the maximum acceleration that the truck can have if the crate is to stay in place? A) 0.625 m/s2 B) 1.25 m/s2 C) 2.50 m/s2 D) 3.16 m/s2 E) 6.33 m/s2
When properly used, a hydraulic press, like a wheel and axle, is capable of multiplying force input
A) A true statement. B) A false statement. C) Yes, and in special cases, energy as well.