Homework Answers
11.The atmosphere of mercury content: c- Oxygen and Nitrogen.
12. Sunlight travel from the Sun to Saturn: e- None of the above.
it takes sunlight 80 minutes to travel from the Sun to Saturn.
13. It takes for the light to travel the distance between the two-star is c- One month.
14. The path of the sun on the celestial sphere is a- Ecliptic
15. c- Keplar theory believes in earth focused ellipses.
16. d- All of this theory is acceptable today.
17. The shooting star is a- Meteor.
18. c- Marse length od the day is the same as Earth.
19. b- 30 Number of galaxies in the local group cluster in the group.
20. The celestial sphere appears to move from a- East to west.
21. The period of revolution of the planet twice the earth around the sun e- Not enough information.
22. The minimum temperature for the fusion of hydrogen atoms to fuse is e- None of these.
100 million k temperature is needed for hydrogen atoms to fuse.
23. Catagory of radiation of protostar is c- X-ray.
24. at c- C point of the path Jupiter travel the fastest.
25. at a- A point of the path Jupiter travel the fastest.
26. The largest mas a star have is b- 300 solar mass
Astronomers find a 300 solar mass star. Star R136a1 is the most massive star ever found with a current mass of about 265 solar masses and a birth mass of about 320 times that of the Sun.
27. a- 10 million years.
28. d- by nuclear fusion.
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11. Which of the following does the atmosphere of Mercury contain? a) Sulfuric acid b) Methane...
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please answer and show work for all parts
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