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  1. Elise8842

    2013 HSC Examination M/C Q.10

    Oh sorry didn't read properly ~
  2. Elise8842

    2013 HSC Examination M/C Q.10

    So how can there be 5 in one room? ~
  3. Elise8842

    2013 HSC Examination M/C Q.10

    Each room can have max four people ~
  4. Elise8842

    Polynomials Question

    The solution is circled in blue ~
  5. Elise8842

    Pendulum question please help

    Ohhh thanks:) ~
  6. Elise8842

    Pendulum question please help

    Thanks dunjaaa, but why is T2>0 the condition for the circular motion to exist? ~
  7. Elise8842

    Pendulum question please help

    That's what I've done so far... I assumed T1>T2 (not sure if that's correct though, can't think of other inequality ) , but the result is still ...wrong ~
  8. Elise8842

    Pendulum question please help

    Could anyone show me how to do part c? Thanks a lot~ :) ~
  9. Elise8842

    Perms/combs 3U question

    [IMG]http://tapatalk.imageshack.com/v2/14/09/10/d32bc8c3b1e8d875b9d83645c0f1c3a9.jpg[/ Bump~ don't get where that 2 in the denominator came from ~
  10. Elise8842

    Conical Pendulum question help please

    Ohhh now I see~~ that helps a lot! Thank you! :-D ~
  11. Elise8842

    Conical Pendulum question help please

    I had no idea when looking at part c... Would u minding telling what goes on in your head when you see it? What are the clues and hints you spot from the question that guides you to do it that way? ~
  12. Elise8842

    Conical Pendulum question help please

    Thank you so much !!! ~
  13. Elise8842

    Conical Pendulum question help please

    Could someone show me how to do part c? many thanks ~
  14. Elise8842

    Weird trig discrepancy?

    Ermmm...a slip of pen in the last line, but you get the idea~~~ ~
  15. Elise8842

    Weird trig discrepancy?

    What is the problem? Don't we just solve it normally? ~
  16. Elise8842

    HSC can give you a hard time. Advise reading this.

    What we can say probably wont make you feel too much better but I just wanna let you know: it's not the end if its not a happy ending. Just keep this in mind. ~
  17. Elise8842

    HSC can give you a hard time. Advise reading this.

    Hey hello are you still online? ~
  18. Elise8842

    Michelson Morley experiment

    Ahh that's the reason why... Thank you so much! :) ~
  19. Elise8842

    Michelson Morley experiment

    Since beam A and beam B are identical, if the aether wind was to affect them from either direction, a same interference pattern would be observed wouldn't it? That is, it's the Beam A or Beam B get affected by the aether wind doesn't really matter? Sorry, I'm stuck here :p ~
  20. Elise8842

    Michelson Morley experiment

    Hi :D Could anyone please explain to me what's the effect of rotating the interferometer by 90 degrees? Some books say "this will change the speed of the aether wind along th e direction of the arms of the interferometer " but I don't really understand hat it means... Does it mean the...
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