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Recent content by Dhaval Shah

  1. Dhaval Shah

    XtremePapers Contest 2012!

    You know, I'm really surprised at the fact that you guys took more than a year to announce the results of this competition! I'm sure you people are very busy, I'm not doubting that at all, but you guys started this telling people that there will be winners, notes will be published blah blah but...
  2. Dhaval Shah

    XtremePapers Contest 2012!

    I'm sure you were, too bad the contest is kinda over :D
  3. Dhaval Shah

    XtremePapers Contest 2012!

    Sorry, the contest has finished. We are all actually very eagerly waiting for the results!
  4. Dhaval Shah

    XtremePapers Contest 2012!

    What if he lost the list? :eek:
  5. Dhaval Shah

    Where exactly do you want to attach the word file? Like for example in a thread or are you...

    Where exactly do you want to attach the word file? Like for example in a thread or are you trying to send it as a message to a particular member of XPC?
  6. Dhaval Shah

    XtremePapers Contest 2012!

    Winners have not been announced yet, they may be announced at the end of this month. Sorry, the contest has already closed a while back, so i doubt you will get a reply.
  7. Dhaval Shah

    Birthday List of the community!!

    18th January :D
  8. Dhaval Shah

    Physics: Post your doubts here!

    it would be ((6.5)/(360) * 2(pi)(r), where r is the radius
  9. Dhaval Shah

    Physics: Post your doubts here!

    For 3)a)ii)1. where the line stops and the curve starts, that's the point because Hooke's law is obeyed when extension is proportional to the load (force). and for 2. you know the equation relating F, k and x is F = kx, so to find k it would be the inverse of the gradient of the graph starting...
  10. Dhaval Shah

    i sent you a message, i think i figured out part (ii), but its too long for me to write it here...

    i sent you a message, i think i figured out part (ii), but its too long for me to write it here :P Hope i helped :)
  11. Dhaval Shah

    umm for the first part, do you mean like the angles are actually 2θ or you mean like square...

    umm for the first part, do you mean like the angles are actually 2θ or you mean like square ((tan^2)θ)? Because I can't seem to do it if the angle is 2θ but i can when its squared....and for part (ii) im actually completely confused :P but is this for AS?
  12. Dhaval Shah

    Hi :)

    Hi :)
  13. Dhaval Shah

    Physics: Post your doubts here!

    For 4b you should just think of the springs as resistors (like resistors in parallel and in series) the two springs in the first box of the question are in series and the two springs in the second box are in parallel. Now in series, you can say (just like how you find total resistance of 2...
  14. Dhaval Shah

    Chemistry: Post your doubts here!

    Lol you see you need to relax, maybe then you will remember! :P 0.0131 is the moles of XCI2, which we found by first calculating moles of AgCI, which is (3.77(the mass))/(143.5(Mr)) = 0.0263 mol. Then isn't it using molar ratio we get the ratio XCI2 : AgCI, which is 1:2 from the formula, so...
  15. Dhaval Shah

    Physics: Post your doubts here!

    All that working for the second part is completely unnecessary, its just for 1 mark! First of all you should know that the percentage uncertainty in r is the same as in the diameter (4%) as dividing or multiplying by a constant has no effect on uncertainty. Now Area = pie x (r^2), and pie is a...
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