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  1. #1
    The Sword of Rome Member Marcellus's Avatar
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    Default Re: Physics

    The working's all fine. You're given data to three significant figures so a good rule of thumb would be to give your answers to a similar precision.
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  2. #2
    Master of useless knowledge Senior Member Kitten Shooting Champion, Eskiv Champion Ironside's Avatar
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    Default Re: Physics

    You can check the orbital period for Venus on the net, 224.70069 days. With rounding errors, does this look reasonable?

    And the formulas look correct by me, although personally I would use different formulas, but that's purely by taste.
    We are all aware that the senses can be deceived, the eyes fooled. But how can we be sure our senses are not being deceived at any particular time, or even all the time? Might I just be a brain in a tank somewhere, tricked all my life into believing in the events of this world by some insane computer? And does my life gain or lose meaning based on my reaction to such solipsism?

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  3. #3
    Hǫrðar Member Viking's Avatar
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    Default Re: Physics

    And compare the orbital period with the rotation period and you'll be up for a surprise.
    Runes for good luck:

    [1 - exp(i*2π)]^-1

  4. #4
    This comment is witty! Senior Member LittleGrizzly's Avatar
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    Default Re: Physics

    Im only a day off so im guessing its ok, if i had got the formulae wrong it would probably be a fair bit off.

    These are the formulas the teacher gave me so i probably have to use them ;)

    ok thanks for all the help guys (your like a more accessible teacher with unlimited knowledge, or at least it seems that way) test in a few hours, wish me luck!

    Edit: the orbital period is close to the rotation period ?
    Last edited by LittleGrizzly; 05-20-2008 at 09:38.
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  5. #5
    Hǫrðar Member Viking's Avatar
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    Default Re: Physics

    Quote Originally Posted by LittleGrizzly
    Edit: the orbital period is close to the rotation period ?
    The rotation period is, in fact, longer.
    Runes for good luck:

    [1 - exp(i*2π)]^-1

  6. #6
    This comment is witty! Senior Member LittleGrizzly's Avatar
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    Default Re: Physics

    Test went well, pretty much full marks apart from me saying the centripetal force acting on the earth is due to the gravity of the sun, i got the marks but he wasn't really happy with that answer. So thanks again!
    In remembrance of our great Admin Tosa Inu, A tireless worker with the patience of a saint. As long as I live I will not forget you. Thank you for everything!

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