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  1. Mahnoorfatima

    Physics: Post your doubts here!

    But why not? I don't get that we are supposed to find the value of a single atom so why do we conside rthe density of the whole crystal??
  2. Mahnoorfatima

    Physics: Post your doubts here!

    14th
  3. Mahnoorfatima

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s12_qp_12.pdf And in question 22, why don't we find the denisty of a single atom?
  4. Mahnoorfatima

    Physics: Post your doubts here!

    I don't get why is the force P acting specifically in this angle. Why can't the answer be A? Can someone explain it diagrammaticaly please? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s12_qp_12.pdf
  5. Mahnoorfatima

    Physics: Post your doubts here!

    OH GOD. The page you quoted is of Oct/Nov 12 paper 13. MY questions are from O/N paper 13 QP 12.
  6. Mahnoorfatima

    Physics: Post your doubts here!

    Thats W12 QP 13 whereas my question is from W13 QP 12 :p
  7. Mahnoorfatima

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w13_qp_12.pdf Question 33., 37
  8. Mahnoorfatima

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w13_qp_13.pdf Question 16??? And in question 33, I get that the resistance increases in a thinner wire but why does the current remain same? BY V=IR shouldn't the current decrease by...
  9. Mahnoorfatima

    Physics: Post your doubts here!

    I still dont get how to do find the value of a particular subject where the equation is given. In solution 108, why is the value of deltaP/rho = pgh/hg???? I DONT GET HOW TO SOLVE THESE SORT OF QUESTIONS AT ALL!?!??:mad::mad::mad...
  10. Mahnoorfatima

    Physics: Post your doubts here!

    http://maxpapers.com/syllabus-materials/physics-9702-a-level/attachment/9702_s14_qp_12/ Question 14,15,18,32 ANYONE HELP.
  11. Mahnoorfatima

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w10_qp_12.pdf q8 ? And what's the general way of solving these kind of question where we have intermediates ?
  12. Mahnoorfatima

    Chemistry: Post your doubts here!

    But we don't have the bond energy of C-F? :/
  13. Mahnoorfatima

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s13_qp_11.pdf q34.?
  14. Mahnoorfatima

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w11_qp_12.pdf question 22??
  15. Mahnoorfatima

    Chemistry: Post your doubts here!

    Qp 13 ON 12, question number 10 anyone?
  16. Mahnoorfatima

    A level Biology: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s12_qp_11.pdf Q16?
  17. Mahnoorfatima

    A level Biology: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s03_qp_1.pdf Mcq 4?
  18. Mahnoorfatima

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s12_qp_11.pdf Question 6 12 And in question 14 why are we adding F? Isn't it supposed to be like this: Fnet=ma ma=mgsintheta - F ?
  19. Mahnoorfatima

    Chemistry: Post your doubts here!

    W13qp 21 question 4 part iii Mj 12 qp 21 question 2 part iv. Anyone? I always have problem in these kind of questions.
  20. Mahnoorfatima

    Physics: Post your doubts here!

    Some questions that I don't understand: http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s13_qp_12.pdf (MCQ 7 and 12) http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s12_qp_12.pdf...
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