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Search results

  1. M

    Transitional Metals Colours

    It is usually 3 steps forward coming back to violet on absorbance of yellow and green.
  2. M

    general paper probable questions????

    Does anyone think this time there will be about Cyber war. Wikileaks can be a good example?
  3. M

    Computing 9691 P3 urgent help!!!!

    https://sites.google.com/site/computing9691
  4. M

    maths 9709

    Just use T^2+T^2+2*T*TCos60=R^2.
  5. M

    Chem P5 most common planning questions and topics

    I shall add one more finding PKa too may be important although not asked yet.
  6. M

    Computing p12

    Maybe.The question was very easy. In my entire life I had never seen such question in computing p1 since I joined A levels in 2009. Lets see how p2 and p3 will be.
  7. M

    Computing HELP!!

    you can get updated notes for computing on this page https://sites.google.com/site/computing9691/. This year I don't think many questions will be based on past papers because the syllabus has turned upside down.
  8. M

    Help manage time!!

    Can anyone help me how I can finish the practical on time. For physics the time is a lot more than enough but I can never finish chem on time. And I an taking chem P33 tomorrow.
  9. M

    threshold for physis p42

    The paper was very easy but one question was senseless. The magnet oscillating inside the coil and no drop in rms voltage at all. It is ridiculous!
  10. M

    math s1?

    Yeah the answer must be 10C5. In simple words, it is selection of 5 out of 10 for any one of the teams. For the other team the selection has already been made.
  11. M

    Mathematics 9709 paper 12 how was it with you?

    I solved all correctly but I was so nervous yesterday that I forgot to write reason why I took the limit between 16 and 0 for the integration of last question volume of revolution. Will I lose marks?
  12. M

    urgent help required on physics

    I will tell you tomorrow about this as far as I know but will you please send me at least only question and answer and examination tips of that book on the CD today. I have not got it yet. Send me on [email protected].
  13. M

    Chem P4 HELP !!

    Think about r0tating it. Benzene is itself planar and if carbon atoms are joined to it directly it must lie on the same plane as carbon atoms in the ring. Cyclic non aromatic can never be made to have all Carbon atoms in the same plane. But if there are straight chains the carbon atoms can be...
  14. M

    Magnetic flux

    If the angle is of the field with the plane of coil it is sine. If the angle is of field with normal to coil it is cosine.
  15. M

    O/N 2010 P63 Q. no.: 6 (ii) and (iii)

    Sorry I made small mistake you will need to multiply first part by 3 because there are three seats in front row for Mrs Lin
  16. M

    O/N 2010 P63 Q. no.: 6 (ii) and (iii)

    I think third part is a bit tough and I took 15 min to do myself before I looked at the answer. I did like if Mrs Brown sits in the front row then there are 10 possible positions where she can be behind a student including two of the second row and all the rest(not front) and one of the student...
  17. M

    electromagnetism!!!urgently

    May be you were talking about magnetic field around spinning neutrons boy it is not the case. It must be about moving charge in a line. Anyway I need a little help in practical because if I get A in practical I can have an star. Can you help me with knowing the three sources of error. Looking at...
  18. M

    electromagnetism!!!urgently

    What I have known is that it is not moving anything that experiences force from magnetic field but moving charge creates a magnetic field around it which makes it feel force from external magnetic field. The moving neutral charge cannot create magnetic force around it to receive force...
  19. M

    Physics problems

    u have got answers for others I guess. There is no change is speed of electron because although the field is non uniform it gains same energy and hence the same speed for acceleration
  20. M

    Use of video cameras and motion sensor

    I wanna know how to use video cameras and motion sensor in physics practical
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