Wednesday
July 23, 2014

Homework Help: Cosmology

Posted by qwerty on Tuesday, January 8, 2013 at 8:08pm.

What observations were used by Edwin Hubble to show that the universe is expanding?

- The distance to a galaxy is proportional to its luminosity.
- The distance to a galaxy is inversely proportional to its apparent size.
- The distance to a galaxy is proportional to its velocity relative to the Milky Way.
- The distance to a galaxy is proportional to its rotational velocity.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Science need help ?????/// - An astronomer observes two galaxies, A and B, which...
Science - The galaxies in the universe are all flying away from each other. The ...
physics - The galaxies in the universe are all flying away from each other. The ...
astronomy - Imagine that you live in a distant galaxy far far away. This galaxy ...
unsolved mysteries astrophysics - Q3.2 COLLAPSE TIMESCALE (5 points possible) ...
Physics help - The galaxies in the universe are all flying away from each other...
space - what did edwin hubble knowtice about the direction of travelof distant ...
Cosmology - A Megaparsec is: - The distance to the Andromeda galaxy - The ...
Cosmology - The Hubble sequence is useful for distinguishing galaxies on the ...
Cosmology - The single largest uncertainty in the measurement of the Hubble ...

Search
Members