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  1. E

    Physics Paper 31 D':

    Ppl could u plz vote on my poll? coz I wanna see how many ppl did bad and how many did good ... :) http://www.xtremepapers.com/community/threads/how-did-u-ppl-do-in-the-physics-paper-3-2012-today.16531/
  2. E

    Physics Paper 31 D':

    All I want is an A....if I get an A* that would be a great surprice to me.....prbly 10-13 marks is how many I lost....and I thought the paper was out of 100 :(
  3. E

    Physics Paper 31 D':

    I did okayish....I think I will lose like 10 marks....what was the total amount of marks for this paper?
  4. E

    How did u ppl do in the Physics paper 3 2012 today?

    I found it quite hard this time... :(
  5. E

    Physics, Chemistry and Biology: Post your doubts here!

    because u need the acceleration for getting the answer not just the speed and distance
  6. E

    Done with Paper 6 chemistry = =

    I took varient 1 and I have lost about 10 marks until now... :( dont know why everyone says its so easy!!!!! It was ok, not easy
  7. E

    Physics, Chemistry and Biology: Post your doubts here!

    For 9)a)i) Its downwards and for a)ii) its anti clockwise....as if u use the flemmings left hand rule or just the right hand rule you can find the direction of the force produced by the interaction of the electric current and the magnetic feild.
  8. E

    Physics, Chemistry and Biology: Post your doubts here!

    0.5m/s^2 is acceleration due to 0.4N but as it was said before since it starts from rest, it is average which is 0.25m/s^2 so we divide 0.25*1.2 and then *1.2 the answer again..... hope that helps :)
  9. E

    Physics, Chemistry and Biology: Post your doubts here!

    0.5 m/s^2 is acceleration due to 0.4N weight.....so to get m we multiply by s and then by s again, then we divide by 2 to get the answer as its 0.5m/s^2 and not 1m/s^2
  10. E

    Physics, Chemistry and Biology: Post your doubts here!

    are you done with your physics? Was it hard?
  11. E

    Physics, Chemistry and Biology: Post your doubts here!

    Because the particles, most of them go though, some get deflected a little and some get completely reversed, this tells us that there is something bigger than the particles inside the foil which is causing them to be reversed and this could not be the electrons most of them pass through as an...
  12. E

    Physics, Chemistry and Biology: Post your doubts here!

    Could someone plz explain what and how the ropes/springs and strain and tension work? Thx....
  13. E

    Physics, Chemistry and Biology: Post your doubts here!

    when diameter becomes half, its half of original area, so inverse of it would be *2 therefore its 2*2 = 4....
  14. E

    Physics, Chemistry and Biology: Post your doubts here!

    11b Im not sure as well....its a hard question....
  15. E

    Physics, Chemistry and Biology: Post your doubts here!

    10.7/2 = 5.35 for 2c
  16. E

    Physics, Chemistry and Biology: Post your doubts here!

    exactly why I dont search them for u coz I dont know either :P....sry....
  17. E

    Physics, Chemistry and Biology: Post your doubts here!

    oh wait now I get it....I understand why u multiply 4*4....ok thx for the help :)
  18. E

    Physics, Chemistry and Biology: Post your doubts here!

    shouldnt it just be like (pie r^2)/2 ? because for getting the area?
  19. E

    Physics, Chemistry and Biology: Post your doubts here!

    I understand better now but I have 1 question why is pie r^2 would be 2^2 and 4? why is it 4*4? I do understand that area decreases and resistance increases....so....plz help :) sorry if Im annoyinh u :(
  20. E

    Physics, Chemistry and Biology: Post your doubts here!

    They have been answered already in this forum topic....but here are the answers...in a) the triangulat yhings will be closer to each other, so their height stays the same but the dist between each of the mountains decreased... b) U change volts/cm setting and make it twice the volts per cm and...
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