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idku

  • one year ago

Advanced PHYSICS question. SATELLINE in SPACE (((FORCES, ACCELERATIONS etc...)))

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  1. idku
    • one year ago
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    Scientists want to place a 2700 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 2.3 times the radius of Mars above the surface of the planet. Here is some information that will help solve this problem: |dw:1442544068910:dw| \(\large \rm m_{mars} = 6.4191 \times 10^{23} kg \) \(\large \rm r_{mars} = 3.397 \times 10^6 m \) \(\large \rm G = 6.67428 \times 10^{-11} {~}(N-m^2)/kg^2 \)

  2. idku
    • one year ago
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    1) What is the force of attraction between Mars and the satellite?

  3. idku
    • one year ago
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    ((I dissapear from the site, due to this site's faultiness when it comes to connecting. Apologize ))

  4. ganeshie8
    • one year ago
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    you may use newton's law of gravity : \[F = G \dfrac{m_1m_2}{r^2}\]

  5. idku
    • one year ago
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    G × (2700kg × 6.4191×10\(^{23}\)kg) / (3.397 × 10\(^{6}\)m) and I will plug my G of course...

  6. idku
    • one year ago
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    3.41 N is what I get.

  7. idku
    • one year ago
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    wrong_:

  8. idku
    • one year ago
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    6.67428×10^(-11)• (2700 × 6.4191×10^(23)) / (3.397 × 10^(6)) this is what I plugged into wolfram, and got 3.41

  9. idku
    • one year ago
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    oh... I am the dumpest on the planet r^2

  10. ganeshie8
    • one year ago
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    Yes, and careful, r is the distance between centers of objects

  11. idku
    • one year ago
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    Wait so r is not that r_mars ?

  12. ganeshie8
    • one year ago
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    |dw:1442545143560:dw|

  13. ganeshie8
    • one year ago
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    \(r\) = distance between objects if the objects are spheres, then you take the distance between their centers

  14. idku
    • one year ago
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    Yes, centers (so there is an extra distance taken into account when we apply the law you mentioned, which needs to be excluded from the calculation of the attraction force).

  15. idku
    • one year ago
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    I tried to primitively apply that formula and it didn't work-:( Then what task should I perform, or what formula should I use?

  16. ganeshie8
    • one year ago
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    what did you get for \(r\) ?

  17. idku
    • one year ago
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    I thought you completely left me. I waited bump time and asked a new question. I would have done something if I had a clue. I am so bad at physics.... i apologize.

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