- If a star's spectrum is shifted to the blue end of the spectrum, this means the star is moving A. away from Earth B. toward Earth C. at the same speed as Earth D. much slower than Earth Use the following diagram to answer the next question.
- If light takes 8 minutes to travel from the Sun to Earth , and over 4 hours to travel from the'Sun to the planet Neptune , what is the distance from the Sun to Neptune? 5 AU 3 AU 5 ly 30 ly 30 AU
- 20. If a star's spectrum is shifted to the hlue end of the spectrum this means the star is moving A. away from Earth B. toward Earth C. at the same speed as Earth D. much slower than Enrth
- Rank the strength of the gravitational force exerted by Earth on each of the objects. Greatest B, C, A D Least Greatest A, B, C D Least Greatest D, A, C B Least Greatest D, C, A B Least Greatest B, A, C D Least Greatest A, C, B D Least Greatest C, A, B D Least Greatest C, B, A D Least
- What is the gravitational force of an 89 kg human standing on a neutron star with a mass of 4.67times 10^30kg and that radius in 12,000 m? 1.9times 10^14N 1.9times 10^14m 1.9times 10^14kg 1.9times 10^14Nm2/kg2 1.93times 10^14N 1.93times 10^14m 1.93times 10^14kg 1.93times 10^14Nm2/kg2 2.31times 10^18N 2.31times 10^18m
