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    The universe is an illusion?

    I think some people are taking the word illusion to literally. . i think it was stated more as a figure of speech. Ask you muslim friend this, if he believes there must be 'something much greater that put it all together' i.e. a creator, then who created the creator? If he says nothing or noone...
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    Is It Worth Thinking About?

    yeh but if you read all i put, i have asked if the question is worth thinking about, that doesn't mean i don't think about it. As i have already said i struggle to see the point in doing so, but that doesn't mean it doesn't cross my mind. Stop trying to be a smart arse and actually contribute to...
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    Is It Worth Thinking About?

    And why would that be?
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    Impulse and momentum of two particles

    What is a negaitve impulse then, what does the - 0.216 mean? why is the answer negative (ingorning the fact it asks for magnitude)?
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    Is It Worth Thinking About?

    Theres so many questions, why are we here, whats our purpose etc... Why does there have to be an answer, can't we just accept what is, and live life in ignorance? I'm sure many will argue that tryign to find the answer to the ultimate question is our purpose in life, but if there is no...
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    What's your favorite movie?

    Donnie Darko Crash Memento The Shawshank redemption (*best movie) Fight Club No country for old men Little Miss Sunshine (sounds crap, refused to watch it, after watching it... wow!) The collateral The departed Confidence Into The Wild - horribly boring, but makes you think. My all...
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    Impulse and momentum of two particles

    O so the maths is right. Ok it makes sense now, cheers!
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    Civil Engineering Vs Architecture?

    I have read quite a few sources about the differences between them but i'm, still in a dilema. Which subject is more related to house building and structure, i know civil engineer goes way beyond houses, to huge structures etc. But can one still do a degree in architecture and be licensed to...
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    Impulse and momentum of two particles

    1. Homework Statement Two particles have mass 0.12kg and 0.08kg respectively. They are intially at rest on a smooth horizontal table. Particle A is then given an impulse in the direction AB so that it moves with speed 3m/s directly towards B. Immediately after the particles collide the...
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    As level mechanics unit 1 question on moments.

    O wait it can't be as simple as that the total reaction force must equal the total downard force, so as A and B are the same its just 90g+60g?
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    As level mechanics unit 1 question on moments.

    The total reaction force must equal the total downard force, i.e. 60g +90g for the woman and plank, even so i dont see how this can help me with the problem of not knowing the distance of the 90g when taking moments at A?
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    As level mechanics unit 1 question on moments.

    1. Homework Statement A non-uniform plank of wood AB has length 6m and mass 90kg. The plank is smoothly supported at its two ends A and B, with A and B at the same horizontal level. A woman of mass 60kg stands on the plank at the point C, where AC=2m. The plank is in equilibrium and the...
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    Very simple relativity questions

    I've only just started reading on this topic at a very basic level, i just have a few questions which im uncertain about. If one is to travel at 99.99% the speed of light in a rocket car on earth, a day for the person traveling at this speed would seem to be a week for everybody else on...
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    Planck's constant, basic understanding help

    I'm currently a GCSE candidate but i am reading books on quantum physics as i intend on studying it for A level. I'm slightly confused on Plancks constant. I dont understand where the value of 6.63*10^-34 comes from, and i don't understand what it represents, if that actually makes sense. I...
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    Probability color ball problem

    Ok, thanks, i do respect the rules and i think i now understand how to answer properly, thanks for the advice . . .
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    Probability color ball problem

    Sorry dude, but i don't see what i'm supposed to say, i didn't answer, i tried to take note of the fact that i wasn't supposed to answer the question and tryed to provide information that would help him. Sorry for the incovience nevertheless . . .
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    Probability color ball problem

    i realised where i went wrong, thats utter rubbish. The outcome is going to be << 2nd complete solution deleted by berkaman >>
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    Probability color ball problem

    Sorry buddy, never realised, will take note for the future.
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    Probability color ball problem

    I think you had a typo and meant 2n^2 - 3.5n + 98 = 0 Part (a) looks correct Part (b) Probability of John or Mary getting yellow : n/n+7 White : 7/n+7 Probability of John(yellow) and M(b) = (7/n+7)(n/n+7) M(y)...
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