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Utah State University PHYSICS 3030 CHAPTER 4 quiz 1)Hubble's constant is about 73 km/s/Mpc

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Utah State University

PHYSICS 3030

CHAPTER 4 quiz

1)Hubble's constant is about 73 km/s/Mpc. That means that somewhere (far enough away from the Earth) stars are moving away from us faster than the speed of light.

2. Why does an expanding universe implies that there was a Big Bang?

3. km/s/Mpc would the estimate of the age of the universe be larger, smaller or the same.

4. Which photon has more energy?

5. Who was the first to notice that distant galaxies were redshifted with respect to closer stars?