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Math Help - Got a physics question or interested in physics?

  1. #1
    MHF Contributor
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    Got a physics question or interested in physics?

    MHF has a partner site, Physics Help Forum. If you are particularly interested in this subject, come check it out!

    Physics Help Forum
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  2. #2
    Member Awsom Guy's Avatar
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    Awsom...

    I have an account in it its cool. i mean AWSOM.
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  3. #3
    Member Mr Rayon's Avatar
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    I have an account but I can't permanently log in. And I know that I'm using the correct password because it does momentarily log me in and shows the message "Thank you for logging in, Mr Rayon". However, it then sends me to a page where I am not logged in.
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  4. #4
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    Quote Originally Posted by Jameson View Post
    MHF has a partner site, Physics Help Forum. If you are particularly interested in this subject, come check it out!

    Physics Help Forum

    hey since you guys have a sister and brother site called chem and physics. Is it possible for you to link my account to your siblings so I can save time registering.
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  5. #5
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    I'm already on it as well Another great helper

    Btw are those two websites also run by the owner/webmaster of this website?
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  6. #6
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    Re: Got a physics question or interested in physics?

    I dont like Physics so much. but after reading your article i think that physics is so intresting.
    Its true that in our world with out physice nothing ts possible..
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  7. #7
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    what about physics-related maths problems?

    especially those that involve calculus.
    Last edited by mr fantastic; October 1st 2011 at 05:23 AM. Reason: Merged posts.
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  8. #8
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    Re: Got a physics question or interested in physics?

    I get "Site cannot be found" now.
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  9. #9
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    Re: Got a physics question or interested in physics?

    A book, which may be modelled as a particle of weight 8N rests in equilibrium on a desk top inclined at 28 degree to the horizontal. ind the frictional force acting on the book. he coefficients of friction between the book and the desk top is 0.6. Determine whether the equilibrium is limiting.

    F= 8 sin 28x.6= 3.75 ( parallel)
    R= 8 cos(28)= 4.5

    Answer given is 3.76N and friction is not limiting. may I know why friction is not limiting? Please explain
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  10. #10
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    Re: Got a physics question or interested in physics?

    f_s = mg\sin{\theta} = 8\sin(28) = 3.76 \, N

    f_{s \, max} = \mu_s \cdot N = 0.6 \cdot 8\cos(28) = 4.24 \, N


    do not piggy-back new questions on an old thread ... next time, start a new physics thread in the Math Topics forum.
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  11. #11
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    Re: Got a physics question or interested in physics?

    Sorry and thanks for explainng
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  12. #12
    Forum Admin topsquark's Avatar
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    Re: Got a physics question or interested in physics?

    It's too late for this comment for most users but the Physics and Chem sites are down until the owner comes back and resuscitates them. I don't recall if we have a Biology forum or if it was in the planning stages. But if we did that's down too. we're focusing on the Math site at the moment.

    -Dan
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  13. #13
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    Re: Got a physics question or interested in physics?

    Hi,
    Back in old days (18-19th centuries and older) math was being developed the way the physicians needed it, not more. Suppose one day a phisician needed to solve quadratic equation and there was no way to do it. He would sit days long and finally invent a method for solve this kind of equations (in reality things were a bit different, but not much). So in the process of solving a physical problem new mathematical method was developed and the physical problem got solved too. This way physics benefited from maths and maths from physics.
    web hosting
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  14. #14
    Forum Admin topsquark's Avatar
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    Re: Got a physics question or interested in physics?

    Well, since the thread came back up (due to a spammer) I thought I'd take the opportunity and say that PHF and CHF are both running strong!

    -Dan
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  15. #15
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    Re: Got a physics question or interested in physics?

    I find this one very interesting. Thanks for the sharing it..
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