It is known that galaxies A and B are very similar to each other. Galaxy B appears 25 times fainter than galaxy A. Assuming that there are no other fading effects in the universe;The recommended time to answer this question is 5 minutes.Soru 12Yanıtgalaxy B is 3 times further away from galaxy A.galaxy B is 4 times further away from galaxy A.galaxy B is 5 times further away from galaxy A.galaxy B is 6 times further away from galaxy A.galaxy B is 7 times further away from galaxy A.

Suppose Galaxy B is 10 times further from Earth than Galaxy A. How does the red shift observed from Galaxy B compare to that of Galaxy A?

Which of the following indicates dark matter in a galaxy?The recommended time to answer this question is 2.5 minutes.Soru 25YanıtMost stars orbiting the galactic center have similar velocities.The galaxy is brighter than expected.The presence of a bar-like structure in the bulge of the galaxy.The diameter of the disk of the galaxy increases over time.The stars in certain regions of the galaxy appear fainter than they should be.

What does Hubble's Law mean?The recommended time to answer this question is 2.5 minutes.Soru 23YanıtAll galaxies are moving away from us at a constant speed.The further a galaxy is, the slower it moves away from us.The further a galaxy is, the faster it moves away from us.The further a galaxy is, the faster it approaches us.All galaxies approach us at a constant speed.

Hubble discovered that more distant galaxies have greater redshift (greater recession velocity).Group of answer choicesTrueFalse

State the relationship between the brightness of a galaxy and its luminosity.