If the density of the universe is less than the critical density,then the total energy of the universe is
A) positive.
B) negative.
C) zero.

Question

Quizplus · Accepted Answer

If the density of the universe is less than the critical density, then the universe is considered to be "open." In an open universe, the total energy of the universe is positive. This is because the gravitational attraction between galaxies and other large structures in the universe is not strong enough to counteract the expansion of the universe. As a result, the universe will continue to expand indefinitely, and the total energy associated with this expansion will be positive.

If the Density of the Universe Is Less Than the Critical