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  1. salvatore

    Chemistry: Post your doubts here!

    Thanks a lot man, peace!
  2. salvatore

    Physics: Post your doubts here!

    I can't find the wall post. Waiting for help from Hadi Murtaza
  3. salvatore

    Physics: Post your doubts here!

    Thank you for your kind reply Its m/j 2005 qn no. 7(c). Here's the question paper: http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_s05_qp_4.pdf
  4. salvatore

    Physics: Post your doubts here!

    Hello, I didn't understand how you solved this part of the question. How did you get N/No = 1/10? I'll be really grateful if you could explain the whole solution in detail. Jazakallah
  5. salvatore

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20%289701%29/9701_w08_qp_4.pdf Could someone please help me with qn no 2(e)? I don't understand why the order with respect to H+ is 0
  6. salvatore

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20%289701%29/9701_w12_qp_43.pdf qn no. 7(iii) I never understand how to solve the NMR questions. Could anyone please do me a favour by explaining the solution to this question? I'm desperately in need...
  7. salvatore

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w02_qp_4.pdf Please help me with qn no. 6b(i). When I try using Fleming's Left Hand Rule, I get the answer as into the plane of the paper (using the direction of the current opposite to the direction of...
  8. salvatore

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20%289709%29/9709_w10_qp_33.pdf Please help me with qn no. 8ii(a).. I'm unable to understand what the marking scheme has done. Thanks
  9. salvatore

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20%289701%29/9701_w03_qp_4.pdf Could someone please explain qn 5(f) i? I don't understand the substituted amides stuff.. I'll be grateful for any help provided. Thanks
  10. salvatore

    Mathematics: Post your doubts here!

    Thanks man.. much appreciated :)
  11. salvatore

    Chemistry: Post your doubts here!

    Thanks man.. much appreciated
  12. salvatore

    Chemistry: Post your doubts here!

    I'm having problems with drawing the primary, secondary and tertiary structures of proteins. As in, I don't know how to draw simplified structures for these. Here are two examples...
  13. salvatore

    Mathematics: Post your doubts here!

    Thanks a lot umm.. what about part ii?
  14. salvatore

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20%289709%29/9709_s08_qp_3.pdf I have some problems with qn no. 5 In (i), how do I sketch the locus in an argand diagram? (ii) I just can't solve this question. Please help me understand the working...
  15. salvatore

    Mathematics: Post your doubts here!

    damn.. I had made a small error in differentiating. Thanks a lot man!
  16. salvatore

    Mathematics: Post your doubts here!

    Thanks a tonne bro.. I appreciate it. Would you mind helping me with part ii of the same question? I'm getting 1.5 as the answer (The ms answer is 0.5). Sorry for bothering man
  17. salvatore

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20%289709%29/9709_s10_qp_31.pdf Please help me with qn no. 9(i).. I have no idea of what to do. I'll be grateful for any help provided Thanks
  18. salvatore

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level//Chemistry%20%289701%29/9701_w12_qp_43.pdf Could someone please help me with qn no. 4b (i)? I just don't understand what to do. Thanks :)
  19. salvatore

    Mathematics: Post your doubts here!

    Thanks :)
  20. salvatore

    Mathematics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20%289709%29/9709_s08_qp_3.pdf Please help me with qn no. 7(ii). I got the partial fractions in (i) as: 1 + (1/2)(1/x+1) + (3/2)(1/x+3) I'll appreciate any help. Thanks
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