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Thread: Helium

  1. 09-06-09 10:37 AM #1
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    Helium

    an extremely stupid question that i should know the answer too but...

    is helium more buoyant than air? if so, by how much?


    cheers

    liam
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  2. 09-06-09 10:39 AM #2
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  3. 09-06-09 10:40 AM #3
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    Quote Originally Posted by LiamS View Post
    an extremely stupid question that i should know the answer too but...

    is helium more buoyant than air? if so, by how much?


    cheers

    liam


    ask yourself why helium ballons float!

    Helium = approx 0.1785g/l
    Air = approx 1.25g/l
    ...---...


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  4. 09-06-09 10:49 AM #4
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    Quote Originally Posted by Scuttler View Post


    ask yourself why helium ballons float!

    Helium = approx 0.1785g/l
    Air = approx 1.25g/l

    thought so cheers (its not my fault... i've spent all morning revising physics ... the old noggin switched off )
    Liam
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  5. 09-06-09 11:36 AM #5
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    Quote Originally Posted by LiamS View Post
    its not my fault... i've spent all morning revising physics
    That's not a good sign then
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  6. 09-06-09 11:37 AM #6
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    Quote Originally Posted by neilh View Post
    That's not a good sign then
    Worse sign if he passes..........
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  7. 09-06-09 12:00 PM #7
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    Quote Originally Posted by neilh View Post
    That's not a good sign then
    Quote Originally Posted by Gloop View Post
    Worse sign if he passes..........

    IM ONLY DOING GCSE'S!!

    thats a level physics


    and im set for getting A*'s thanks muchly
    Liam
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  8. 09-06-09 12:19 PM #8
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    Quote Originally Posted by LiamS View Post
    IM ONLY DOING GCSE'S!!

    thats a level physics

    ?? I thought it was 11-plus Chemistry




    Youff terday
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  9. 09-06-09 12:20 PM #9
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    Only because they are easier than O levels, before they invented the computer and course work.
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  10. 09-06-09 12:20 PM #10
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    Quote Originally Posted by LiamS View Post
    IM ONLY DOING GCSE'S!!

    thats a level physics
    It is?! Goodness, maybe the dumbing down stories are right after all then...

    Have a look at this anyway: Gases - Densities

    Oh, and best of luck with the exams! (Now get back to revising, and stop messing round on t'interweb... )

    Amy.
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