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Tori040403

  • one year ago

What is the name for a star and planets held together by gravity? A. solar system B. galaxy C. black hole D. supernova

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  1. Tori040403
    • one year ago
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    I think its B

  2. anonymous
    • one year ago
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    that's probably right. i think either b or a?? because c and d don't make sense

  3. Tori040403
    • one year ago
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    Im gonna go with B, could you help me with a few more?

  4. anonymous
    • one year ago
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    maybe

  5. anonymous
    • one year ago
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    what are the questions?

  6. Tori040403
    • one year ago
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    Which contribution did Copernicus make to our view of the solar system? A. He proposed the sun-centered model of the solar system. B. He showed that planets moved in elliptical orbits. C. He proposed that gravity kept the planets in their orbits. D. He proposed the earth-centered model of the solar system.

  7. anonymous
    • one year ago
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    i think it's A

  8. Tori040403
    • one year ago
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    I think so too.

  9. anonymous
    • one year ago
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    do you have more?

  10. Tori040403
    • one year ago
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    yes

  11. anonymous
    • one year ago
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    ok

  12. Tori040403
    • one year ago
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    What was the purpose of Project Gemini? A. to land on and explore the moon B. to orbit, rendezvous, and dock spacecraft C. to see if a man could survive in outer space and reenter the earth's atmosphere D. to test the effects of prolonged spaceflight on the human body

  13. anonymous
    • one year ago
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    B

  14. anonymous
    • one year ago
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    i think

  15. Tori040403
    • one year ago
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    Ok

  16. Tori040403
    • one year ago
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    Which planet has the shortest period of revolution? A. Venus B. Mars C. Earth D. Mercury

  17. Tori040403
    • one year ago
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    i think its D since its the smallest.

  18. anonymous
    • one year ago
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    that sounds right then

  19. Tori040403
    • one year ago
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    Which is the windiest planet? A. Jupiter B. Neptune C. Saturn D. Uranus I think its A because the great red spot is a hurricane 2 and a half times the size of earth

  20. anonymous
    • one year ago
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    yup

  21. Tori040403
    • one year ago
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    :)

  22. anonymous
    • one year ago
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    is that it or do you have more?

  23. Tori040403
    • one year ago
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    i have more

  24. Tori040403
    • one year ago
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    A star’s light is shifted to the red part of the light spectrum. What does this mean about the length of light waves and movement of the star? A. The wavelengths are getting longer, meaning the star is moving away from the observer. B. The wavelengths are getting shorter, meaning the star is moving away from the observer. C. The wavelengths are getting shorter, meaning the star is moving toward the observer. D. The wavelengths are getting longer, meaning the star is moving toward the observer.

  25. anonymous
    • one year ago
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    it might be B but i'm not sure

  26. Tori040403
    • one year ago
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    Yeah i think its B also.

  27. Tori040403
    • one year ago
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    wait, it might be A.

  28. anonymous
    • one year ago
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    like i said, i'm not really sure. choose whatever you think sounds right

  29. Tori040403
    • one year ago
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    ok, i have one more.

  30. anonymous
    • one year ago
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    ok

  31. Tori040403
    • one year ago
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    Which best describes the differences between how Ptolemy and Kepler described the solar system? A. Ptolemy saw the sun at the center of the solar system, while Kepler saw the earth as the center. B. Ptolemy saw the earth at the center of the solar system, while Kepler saw the moon as the center. C. Ptolemy saw the earth at the center of the solar system, while Kepler saw the sun as the center. D. Ptolemy had a heliocentric view of the universe, while Kepler had a geocentric view of the solar system.

  32. anonymous
    • one year ago
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    i think it's c

  33. Tori040403
    • one year ago
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    me to

  34. Tori040403
    • one year ago
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    well thanks! :)

  35. Tori040403
    • one year ago
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    OMG! I GOT AN 85% :D THANK YOUUUUUU

  36. anonymous
    • one year ago
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    you're welcome :D

  37. Tori040403
    • one year ago
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    bai :)

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