Cosmology
posted by qwerty .
In an Einsteinde Sitter (matterdominated) universe, the scale factor is proportional to time to the power of:
* 3/2
* 2/3
* 1/2
* 1/3
Respond to this Question
Similar Questions

Cosmology
What observations were used by Edwin Hubble to show that the universe is expanding? 
Cosmology
The equation describing the geometry and massenergy distribution of a homogeneous and isotropic universe is known as:  The Einstein Equation  The Friedmann Equation  The RobertsonWalker Equation  The Hubble Equation 
Cosmology
The scale factor, R, describes how universal expansion changes with:  time  curvature  location  all of the above 
Cosmology
The solution of Olbers' Paradox is:  The universe is opaque at large scales  The universe expands  There is simply not enough starlight in the universe  Matter is clustered in such a way that the integral brightness converges 
Cosmology
The most cosmological measurements show that the universe is extremely flat (Ωk≈0) and that the surface brightness of objects scales with the fourth power of redshift (SB∝z^−4). If the universe was still expanding, … 
Cosmology
In a universe where the scale factor is proportional to t^α, where t is time and α is a constant less than one, the universe has: * the sign of the acceleration is undetermined * negative acceleration * positive acceleration … 
Cosmology
In order from earlier to later times, the dominant components of our universe have been: * dark energy, matter, then radiation * dark energy, radiation, then matter * matter, radiation, then dark energy * radiation, matter, then dark … 
Cosmology
A curvature constant of k=0, as used in the Friedmann equation, means: * The universe is open * The universe is matterdominated * There is no dark energy * The universe is flat 
Science
The galaxies in the universe are all flying away from each other. The speeds of nearby galaxies are proportional to the distance the galaxy is away from us. This relation, v=Hd is known as Hubble's law and the constant H is known as … 
physics
The galaxies in the universe are all flying away from each other. The speeds of nearby galaxies are proportional to the distance the galaxy is away from us. This relation, v=Hd is known as Hubble's law and the constant H is known as …