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Question
There are three possible fates for the universe: 1) eternal expansion; 2) total collapse; or 3) some equilibrium condition with no further motion. What conditions might favor one result over the other?A) Critical velocityis there enough momentum to continue expansion forever?
B) Critical densityis there enough mass in the universe to cause gravitational collapse?
C) Critical energyis there enough energy in the universe to maintain either expansion or collapse?
D) Critical volumeis the universe large enough for unlimited expansion?
Answer
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