The type of fuel created in the breeder reactor is
A) uranium-238.
B) cow dung.
C) plutonium.
D) uranium-235.
E) deuterium.
C
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You are feeling like spaghetti. Although normally only about 2 meters tall, you are now about 25 meters long
(How fortunate, if painful, that the being has arranged for your body to become elastic enough so that it is not ripped apart under these conditions.) As you look up over your head, you see things moving pretty quickly in the universe—but that lasts only for a brief instant, and then all contact with the universe is lost. Where are you? A) You are plunging into the Sun. B) You are crossing the event horizon of a black hole. C) You are being consumed by a "crack" in the universe caused by inflation. D) You are near the center of a star that has just developed an iron core, leading to a supernova. E) You are in a medieval torture chamber somewhere in western Europe.
A person is lowering a bucket into a well with a constant speed. The force exerted by the rope on the bucket is
A) equal to the bucket's weight. B) greater than the bucket's weight. C) less than the bucket's weight, but not zero N. D) zero N. E) Cannot be determined without additional information.
Hydrogen and oxygen molecules in a sample of gas have the same temperature. This means the hydrogen molecules, on average, have the same
A) speed and the same kinetic energy. B) speed, but more kinetic energy. C) speed, but less kinetic energy. D) kinetic energy, but more speed. E) kinetic energy, but less speed.
An observer in the Southern Hemisphere takes a time exposure photograph of the night sky. If the illustration below depicts the photograph taken by the observer, which direction was the camera pointing?
a.
straight north
b.
straight east
c.
straight south
d.
straight west
e.
straight up, directly overhead