If the gravitating matter density of the universe is equal to the critical density,and H equals 50 km/sec/Mpc,then the true age of the universe is 13.3 billion years.There is no dark energy in this model.

Question

Quizplus · Accepted Answer

The critical density is the density of matter in the universe that would result in a flat universe, with no curvature. If the universe has a critical density, then it will expand forever, but the expansion will slow down over time. The Hubble constant is a measure of the expansion rate of the universe. A Hubble constant of 50 km/sec/Mpc means that the universe is expanding at a rate of 50 kilometers per second per megaparsec. The age of the universe can be calculated using the Hubble constant and the critical density. The age of the universe is 13.3 billion years if the universe has a critical density and a Hubble constant of 50 km/sec/Mpc.

If the Gravitating Matter Density of the Universe Is Equal