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Thread: very random physics qn

  1. #41
    Deregistered allenleonhart's Avatar
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    Default Re: very random physics qn


  2. #42

    Default Re: very random physics qn

    Quote Originally Posted by allenleonhart View Post
    I refuse.

  3. #43
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    Default Re: very random physics qn

    Quote Originally Posted by brapodam View Post
    I refuse.
    okkies

  4. #44
    Member Foxshade's Avatar
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    Default Re: very random physics qn

    Quote Originally Posted by night86mare View Post
    "physics is better than porn" - that's what someone told me before.
    and if you put it into practice esp. to sabo ppl, it'll be lot more fun than watching porn...

    Quote Originally Posted by allenleonhart View Post
    Wouldn't it be GWC Geeks With Camera now?
    Last edited by Foxshade; 23rd June 2010 at 10:40 PM.
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  5. #45
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    Default Re: very random physics qn

    Quote Originally Posted by allenleonhart View Post
    LOL hehe i'm the kind that says physics is better than porn in my sch at least
    Quote Originally Posted by brapodam View Post
    I refuse.
    See.. who would want to join your club.. it's abnormal..

    There's oni 2 possibilities.. either you're perverted.. or you pretended..

  6. #46

    Default Re: very random physics qn

    Can add one more physic qn which has been troubling me since my JC times.

    Qn: If there is a floating ball placed into a basin of water, the low density ball will float right? If the ball float and at the top there is a slide, the ball will fall off the slide. When the ball fall off the slide, it will hit the dynamo and produce electricity. After which will fall back to the basin of water. And it will repeat the whole process again, generating "free" electricity. Actually, who is doing the work?

  7. #47
    Deregistered allenleonhart's Avatar
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    Default Re: very random physics qn

    Quote Originally Posted by Limsgp View Post
    See.. who would want to join your club.. it's abnormal..

    There's oni 2 possibilities.. either you're perverted.. or you pretended..
    wad if i'm serious?

    this is wad happens to ppl who shi lian. they go nuts abt physics

  8. #48
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    Default Re: very random physics qn

    Quote Originally Posted by Foxshade View Post
    and if you put it into practice esp. it'll be lot more fun than watching porn...
    inspiring..

  9. #49
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    Default Re: very random physics qn

    How does the ball enters the water (at the bottom)? Probably you need to do "work" to put the ball in that situation (at the bottom of the basin).

    maybe a picture will help. In any case, perpetual machines doesn't work, bcoz of friction.

    Quote Originally Posted by maisatomai View Post
    Can add one more physic qn which has been troubling me since my JC times.

    Qn: If there is a floating ball placed into a basin of water, the low density ball will float right? If the ball float and at the top there is a slide, the ball will fall off the slide. When the ball fall off the slide, it will hit the dynamo and produce electricity. After which will fall back to the basin of water. And it will repeat the whole process again, generating "free" electricity. Actually, who is doing the work?

  10. #50

    Default Re: very random physics qn

    Quote Originally Posted by allenleonhart View Post
    good math is the most pure subject. and physics is applied math anyways

    i wanna go nus and study theoretical physics. string theory looks quite cool
    seriously, for someone who needs help with some relatively simple physics and who comes to find help in clubsnap of all places, you do not look like a good candidate to study string theory.

  11. #51
    Deregistered allenleonhart's Avatar
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    Default Re: very random physics qn

    Quote Originally Posted by cosycatus View Post
    seriously, for someone who needs help with some relatively simple physics and who comes to find help in clubsnap of all places, you do not look like a good candidate to study string theory.
    cause its actually a conspiracy to find out where the other geeks are

    just kidding.

    this is actually beyond the sylabus and its a h3 thingy. somethign first year unis will do. i admit this one i shld had learnt properly. but i told u liao, is my math cui

    so i gotta brush up on math

  12. #52
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    Default Re: very random physics qn

    Quote Originally Posted by Limsgp View Post
    How does the ball enters the water (at the bottom)? Probably you need to do "work" to put the ball in that situation (at the bottom of the basin).

    maybe a picture will help. In any case, perpetual machines doesn't work, bcoz of friction.
    It needs to be in an isolated system for the law of conservation of energy to work. It is difficult maybe almost impossible.

    Who will be doing the work? gravity,
    - when the ball is on the slide, it's the gravity.
    - when the ball is in the water, it would displace certain amount of water, which in turns will bounce the ball back up.

    Is it right?
    A true photograph need not be explained, nor can it be contained in words.
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  13. #53
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    Default Re: very random physics qn

    Quote Originally Posted by Limsgp View Post
    How does the ball enters the water (at the bottom)? Probably you need to do "work" to put the ball in that situation (at the bottom of the basin).

    maybe a picture will help. In any case, perpetual machines doesn't work, bcoz of friction.
    even without friction, it will not work

    when the ball reaches on the bottom of basic, it will attempt to displace water to enter the water. if it has lower density, water will provide a resistive force against the ball entering... if no enough force, the ball also cannot go back into water... if the ball can float, it means that the upthrust on ball > than weight of ball. ball will never enter back again.

    and there are loads more lar. this one in sylabus so i can handle

  14. #54
    Member Foxshade's Avatar
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    Default Re: very random physics qn

    Quote Originally Posted by allenleonhart View Post
    wad if i'm serious?

    this is wad happens to ppl who shi lian. they go nuts abt physics
    It was the other way round for me actually. My first crush is a gal who is gifted in physics. Me myself is a lousy scientist and bad with math. 1st love gave me the big push to excel in physics.

    Even I know the theories well, I am still struggling when comes to dealing with formulas.
    A true photograph need not be explained, nor can it be contained in words.
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  15. #55
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    Default Re: very random physics qn

    Quote Originally Posted by Foxshade View Post
    It needs to be in an isolated system for the law of conservation of energy to work. It is difficult maybe almost impossible.

    Who will be doing the work? gravity,
    - when the ball is on the slide, it's the gravity.
    - when the ball is in the water, it would displace certain amount of water, which in turns will bounce the ball back up.

    Is it right?
    u said it urself.
    law of conservation of energy. energy cannot be created.

    when ball on slide, gravity pulls it down. yet when ball attempts to enter water? remember it is less dense. water will attempt to force it out due to the density difference. ball will never go in again.

  16. #56

    Default Re: very random physics qn

    u guys think too much, just take the ball and go play basketball lah

  17. #57
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    Default Re: very random physics qn

    Quote Originally Posted by Foxshade View Post
    It was the other way round for me actually. My first crush is a gal who is gifted in physics. Me myself is a lousy scientist and bad with math. 1st love gave me the big push to excel in physics.

    Even I know the theories well, I am still struggling when comes to dealing with formulas.
    YES FINALLY SOMEONE WITH THE SAME PROBLEMS AS ME

    if u ask me abt the theory aspect of relativity i can get it no prob.

    but once u ask me play with numbers to prove why a pion that flys near the speedof light dun decay as fast, i will puke blood.

  18. #58
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    Default Re: very random physics qn

    Quote Originally Posted by Limsgp View Post
    koplady=xmm?

    wow.. your vital stats muz be good then.. 2nd only to a statistician..
    Hur hur hur. Nah. Stats officer = can never be a statistician coz grades in uni cmi. HAHAHAHA.
    Canon EOS 500D | Tamron 17-50mm f2.8 non vc
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  19. #59

    Default Re: very random physics qn

    Geeks' Club..?

    That sounds so dorky. lol.
    Passion for Photography

  20. #60
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    Default Re: very random physics qn

    wads dorky? I only knoow geek slang

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