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  1. eldore44

    is time travel possible?(not including twins paradox)

    pretty sure I've studied time travel for at least a week in physics. so like 4 whole hours worth. Dont imply I wouldnt know about it.
  2. eldore44

    is time travel possible?(not including twins paradox)

    You can travel forward in time, kinda. With relativity, ty Einstein. So I can, theoretically, move quickly for a second and be 100 years in the future. However the inverse of this is not travelling backwards in time, rather you can become older than you should be. I could, theoretically, move in...
  3. eldore44

    Mathematics Marathon HSC 09

    the q was actually for 6 lights. but doesnt matter. 2green and 1 red =(3.3.3.1)/(4.4.4)=27/64 and therefore it is equally likely as three greens.
  4. eldore44

    Mathematics Marathon HSC 09

    (1/4)^3 =1/64 Now find the most likely combination(in any order) with 6 such lights.
  5. eldore44

    Mathematics Marathon HSC 09

    b^2-4ac = 0 k^2-4.2.(3k-10) k^2-24k+80=0 quadratic eqtn with k.. cant be bothered anymore.
  6. eldore44

    Mathematics Marathon HSC 09

    does that make sense? did you mean for which the roots are equal?
  7. eldore44

    Mathematics Marathon HSC 09

    i)100000x1.0075^12 - M ii)(100000x1.0075^12 - M)x1.0075^12 - M okay, we can make a series here. But is it both arithmetic and geometric?
  8. eldore44

    Mathematics Marathon HSC 09

    [1-sqroot(x)]/[1-x] = [1-sqroot(x)]/[1-sqroot(x)][1+sqroot(x)] =1/[1+sqroot(x)] u=sqroot(x) du/dx=1/2sqroot(x) du.2sqroot(x)=dx du.2u=dx du.2u/(1+u) =2 - 2/(1+u) integral of 2 - 2/(1+u) = 2u - 2log(1+u) + c =2sqroot(x) - 2log(1+sqroot(x)) + c That looks fine. Where is the mistake? Also, I...
  9. eldore44

    Mathematics Marathon HSC 09

    [1-sqroot(x)]/[1-x] = [1-sqroot(x)]/[1-sqroot(x)][1+sqroot(x)] =1/[1+sqroot(x)] u=sqroot(x) du/dx=1/sqroot(x) du.sqroot(x)=dx du.u=dx du.u/(1+u) =1 - 1/(1+u) integral of 1 - 1/(1+u) = u - log(1+u) + c =sqroot(x) - log(1+sqroot(x)) + c .. i think. Differentiate tan^-1(x^4) with respect to x...
  10. eldore44

    Cheating??

    Man!! I wish I thought of tampering with the maths teachers calculators. But going beyond that is just insane!
  11. eldore44

    So is anybody planning to not study on the dya of their exams or the day before?

    First of all, how else would we distinguish between a trend 5 strong, and a trend 101 strong? Secondly, I believe all the harcore people wait until 8am that morning to start studying. Well, thats my plan for english anyways.
  12. eldore44

    A Question of Christian Theology

    thats some philosophical shit right there.
  13. eldore44

    The hsc starts in about 12 days!!!!

    apparently, so my Physics teacher tells me, you cant just pick an elective to do. Teachers have to tell the board what elective you're doing. The truth of this I dont know, maybe he just didnt want us to do a different elective.
  14. eldore44

    biology vs physics vs chemistry

    Physics. Because the other two are for gay stamp collectors.
  15. eldore44

    Obama wins nobel peace prize

    Dude, Hitler was the greatest leader the world has ever seen. Sure, he went on a little bit of a rampage- but the fact he did it legally is pretty amazing. *legally does not mean he held international law.
  16. eldore44

    howr u waking up for the hsc exams and at what time?

    wake up at 8.50. dose up on Ritalin while speeding to exam. Sounds flawless to me.
  17. eldore44

    Expelled with one day left.

    Haha, I love the internet in that there is a neglect of sensitivity. Not even being sarcastic- I would definitely laugh at someone getting expelled on the last day. The picture of Nelson was my favourite. Turns out the whole marking process is the same as if i was still enrolled, only once...
  18. eldore44

    Expelled with one day left.

    So I got expelled on the last day of school for throwing a water bomb. Sure it was the end of a list of things but they still took it too far. Now, I wasnt actually told I was expelled- just that I couldnt attend grad or return for the exams. I'm still allowed enroll in another school- but be...
  19. eldore44

    What should the '10 Year do right now?

    Things to do: 1. Get drunk. 2. Get a job to sustain your drinking habits. 3. Repeat step 1. You should aim to be drinking 3 nights a week and then sleeping the entire next day each time. Otherwise these holidays have been wasted by you. I anticipate...
  20. eldore44

    Hardest ext maths topic...

    circles! well, theyre easy as heck but i hate them with a passion.
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