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  1. Albert Einstein

    Mathematics: Post your doubts here!

    All what u need is to understand the ground.......
  2. Albert Einstein

    http://www.freeexampapers.com/past_papers.php?l=Past_Papers/A+Level/ Here u r dr..

    http://www.freeexampapers.com/past_papers.php?l=Past_Papers/A+Level/ Here u r dr..
  3. Albert Einstein

    Physics: Post your doubts here!

    Sir ?? lolzzzz u r welkum dr...
  4. Albert Einstein

    Physics: Post your doubts here!

    Here u are....
  5. Albert Einstein

    Physics: Post your doubts here!

    Ive got it...during a nuclear reaction the neutron is converted into proton and electron therefore the neutron number is not conserved
  6. Albert Einstein

    Physics: Post your doubts here!

    Here it is http://www.miniphysics.com/2010/12/nuclear-reactions.html
  7. Albert Einstein

    Physics: Post your doubts here!

    Hehe..this question i've tried it by elimination and it wrked out and such types of question often appear in paper 2 as well... Refering to my notes i've found during nuclear reaction Mass and energy, nuleon number, charge, isospine, momentum, proton number is conserved so by eliminaton i've...
  8. Albert Einstein

    POST ANY QUESTIONS FOR AS/A LEVEL COMPUTING HERE!

    Hmm
  9. Albert Einstein

    POST ANY QUESTIONS FOR AS/A LEVEL COMPUTING HERE!

    How to revise the programming codes in Vb languages fore paper 2
  10. Albert Einstein

    Physics: Post your doubts here!

    I've nt done relative velocity..its nt part of my syllabus sorry
  11. Albert Einstein

    Physics: Post your doubts here!

  12. Albert Einstein

    Physics: Post your doubts here!

  13. Albert Einstein

    Physics: Post your doubts here!

    Because centripental force is not a force by itself..but provided by another force for e,g tension friction..etc in zis example is gravitational force
  14. Albert Einstein

    Physics: Post your doubts here!

    Of course u will fail becoz when u replace the initial velocity (gt1) in the eqns S=... u must replace the time taken also that is gt1(t1-t2) ur mistake is u replace the initial velocity,u by gt1 and forgot the time taken for the distance travelled. Now u found ur mistake !!!!!!!!
  15. Albert Einstein

    Physics: Post your doubts here!

    Expand the bracket and u'll get the answer
  16. Albert Einstein

    Physics: Post your doubts here!

    Because the gravitational force provides the centripental force..
  17. Albert Einstein

    Physics: Post your doubts here!

    well i got it Force garvitational= force centripental GMm/r^2 = mv^2/r Use M= 1.9891 *10^30 r=1.5*10^11 and find v..wer z prob ??
  18. Albert Einstein

    Physics: Post your doubts here!

    Wepss
  19. Albert Einstein

    Physics: Post your doubts here!

    What is the mass of the sun ??
  20. Albert Einstein

    Physics 9702 Paper 5-Post Your doubt

    Well i can't post all the solution...If u have any doubt..then post it
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