If the density of the universe is greater than the critical density, this means that:
A)the universe is expanding at a rate equal to the escape speed of the universe.
B)the universe is expanding at a rate less than the escape speed of the universe.
C)the universe is expanding at a rate greater than the escape speed of the universe.
D)the universe is expanding at a rate equal to the speed of light.
E)the universe is expanding at a rate greater than the speed of light.

Question

Quizplus · Accepted Answer

If the density of the universe is greater than the critical density, it implies that the gravitational pull of the matter in the universe is strong enough to eventually stop its expansion, meaning the universe is expanding at a rate less than the escape speed of the universe.

If the Density of the Universe Is Greater Than the Critical