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  1. R

    Post Your AS LEVEL PHYSICS PAPER 2 DOUBTS

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w09_qp_22.pdf 2b(ii) to calculate the seperation how we do it
  2. R

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w09_qp_21.pdf 2c(ii) WHy is acceleration and weight getting subtracted. is the acceleration actually the dec. and given in negative???
  3. R

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w07_qp_2.pdf how do we do 1b. really confused helpp
  4. R

    Post Your AS LEVEL PHYSICS PAPER 2 DOUBTS

    yeh i get dat.. But when we used the formula δ d/d = δ m/m + 3 δ l/l didnt we take the uncertainty out of density. Or did we not?
  5. R

    Post Your AS LEVEL PHYSICS PAPER 2 DOUBTS

    i had done all the steps i just dont know why u calculated this : δ d = 0.0672 × 2.69
  6. R

    Post Your AS LEVEL PHYSICS PAPER 2 DOUBTS

    ty :)
  7. R

    Post Your AS LEVEL PHYSICS PAPER 2 DOUBTS

    s09 qs 1 need help in calculation of the uncertainty?
  8. R

    Physics: Post your doubts here!

    How do we take out speed of seperation and speed of approach. Its required to tell if collisions are inelastic or not
  9. R

    Phase Difference AS Level Notes

    any other chapter notes u have plzzz post them :))
  10. R

    A level Biology: Post your doubts here!

    what is ADP. Is it similiar to ATP??
  11. R

    A level Biology: Post your doubts here!

    guys are u learning the global distribution of heart disease, and also the global distribution of these diseases. Do any questions come on these in the paper.
  12. R

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w10_qp_22.pdf How do we do this by calculation. Help plzzz
  13. R

    A level Biology: Post your doubts here!

    guys are u learning the global distribution of heart disease, and also the global distribution of these diseases. Do any questions come on these in the paper.
  14. R

    Physics: Post your doubts here!

    THe error is halved because look at the equation: V=pier2l. So r is 2 so that means we will have to divide by 2 to get the answer of R only not 2r. But i dont get why they are adding the uncertainties and then dividing them. Shouldnt they subtract the uncertainties like this: V-L=3.3-1.5/2 to...
  15. R

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s11_qp_21.pdf how to do qs 1b(ii)
  16. R

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s05_qp_2.pdf 4c) dont understand the markign scheme plzz xplain
  17. R

    Physics: Post your doubts here!

    yeh honey im ok. the problem here is that even though i changed the ppr from w10 to w11 it was still opening the previous paper. just go to the adressbar and change it to w11
  18. R

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w11_qp_23.pdf oh sorry wrong ppr here u go
  19. R

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w10_qp_23.pdf in qs 4b(iv) the 3rd part my calculations are dis what is wrong: V=IR, 2.1-0.24*1.8=0.432V
  20. R

    A level Biology: Post your doubts here!

    what does fluidity of the membrane mean?
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