# Cosmology

posted by
**qwerty** on
.

In an Einstein-de Sitter (matter-dominated) universe, the scale factor is proportional to time to the power of:

* 3/2

* 2/3

* 1/2

* -1/3

posted by
**qwerty** on
.

In an Einstein-de Sitter (matter-dominated) universe, the scale factor is proportional to time to the power of:

* 3/2

* 2/3

* 1/2

* -1/3