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  1. snipex

    A level mechanics HELP!!!!!

    forget that you have a weight and treat it as normal resolving question you will get the ans
  2. snipex

    A level mechanics HELP!!!!!

    huh am sayin dont iclude the weight in your calculations :/
  3. snipex

    A level mechanics HELP!!!!!

    as I told you before these ar horizontal forces nt vertical, in other wrods you dont add the weight becaue forces in y direrion in this question moves object forward and backward nt up and down, it like movin box forward without raisng it up, simply the weight is perpindicular to these forces
  4. snipex

    A level mechanics HELP!!!!!

    yup and then get f by simultaneos eq
  5. snipex

    A level mechanics HELP!!!!!

    lol man read the question properly these forces are nt vertical but horizontal and these foreces represent direction of movement like front or back or right or left
  6. snipex

    expected grade boundries for As math p12

    8r=8+8d divivde all by 8 it will be r=1+d then subistitute it in 8r2=8+20d 8(1+d)2=8+20d 8(1+d2+2d)=8+20d 8+8d2+16d=8+20d 8 will cacel with 8 so 8d2+16d-20d=0 take d common d(8d-4)=0 d=0 which is rejected 8d-4=0 which maked d=0.5 put d=0.5 in r=1+d and r=1.5 thats answer
  7. snipex

    expected grade boundries for As math p12

    yes, 2l7 thnx man for sharin answers now Ive checked all my answers and calmed down :) isa A
  8. snipex

    expected grade boundries for As math p12

    Nt Nt bad i may get around 69 or 68
  9. snipex

    expected grade boundries for As math p12

    No discussion man
  10. snipex

    expected grade boundries for As math p12

    I dont yhink it will be 64; if we compare this paper wih may/june 13 this paper is actually harder than may june 13 by many times and may june 13 papers were 61/75 and 59/75 for A
  11. snipex

    expected grade boundries for As math p12

    Well actually the paper was easu :) 2l7
  12. snipex

    expected grade boundries for As math p12

    Hey guys what do you expect for grade boundries of As math p12. I myself think it will be around 60 to 62
  13. snipex

    how to get A in p3 As physics?

    Guys I really need your help, currently I am getting high grades in p1 and p2 physics but I cant seem to be able to get even a B in p3 so what can I do?
  14. snipex

    Physics, Chemistry and Biology: Post your doubts here!

    Well its just that you try each organic vompound with 8 molecules of oxygen and see if it will be balanced or not.
  15. snipex

    Physics, Chemistry and Biology: Post your doubts here!

    Well its just that you try each organic vompound with 8 molecules of oxygen and see if it will be balanced or not.
  16. snipex

    Physics, Chemistry and Biology: Post your doubts here!

    Well see, for cathode it is blue because sodiumchloride is concentrated , in other words sodium will replace hydrogen and take its place in cathode, for anode am not sure but I think it is colourless because when sodium ion bexome sodium, free chlorine ions combine to from chlorine as a result...
  17. snipex

    Physics, Chemistry and Biology: Post your doubts here!

    Well for question (1) you will start by writing the equation and balancing it(2NH4cl + ca(oh)2 = cacl2 +2h2o+2NH3)then you find number of moles of NH4cl ir ca(oh)2 . I will use ca(oh)2. It will be 70/(40.1+16+16+2) to get 0.94 then ratio of calcium hydroxide to ammonia is 1:2 so 0.94x2 to get...
  18. snipex

    Maths CIE 2013 oct/november Paper 21 help?!

    Well 21 was a bit but 41 was easy.
  19. snipex

    Maths CIE 2013 oct/november Paper 21 help?!

    I think the one in p21 was 1:150 I asked yhe teacher about it and he said its correct
  20. snipex

    Maths CIE 2013 oct/november Paper 21 help?!

    You sure?
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