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  1. S

    Maths, Addmaths and Statistics: Post your doubts here!

    N/NpM? :p when u get the answer tag me
  2. S

    Biology Paper 1

    Cuticle is the no cellular layer that prevents water loss...what other questions were thee
  3. S

    Biology Paper 1

    No it's correct too. I wasn't conforming the ans..I know it's right:/ It's secretion depends on the amount of glucose in the blood, and when it's not needed anymore, it's broken down by the liver hence it's concentration remains constant
  4. S

    Biology Paper 1

    Okay so excretion of carbon dioxide was diffusion and muscular contraction only na? Insulin in the blood remains constant and its secretion varies. What else was there?
  5. S

    Biology Paper 1

    Nope. The pressure only decreases BECAUSE the volume oncreases. The latter happens first
  6. S

    General paper discussion

    I hope so although I doubt it...but then again it all depends on our examiner...may they all be in a good mood while checking our exams :)
  7. S

    General paper discussion

    I meant ive lost AT LEAST those marks. I'll probably get a mark deducted for the drawing cause it wasn't exactly twice the side of the image & another mark for the co2 test cause my answer wasn't that clear :( but oh we'll. I really really hope the threshold for bio falls well below 90%!
  8. S

    General paper discussion

    Bet I've lost more marks in p2 than you have :/ I'm losing at least 15 marks there, 2 marks for the oxygen test in p4 :/ p1 went really well...haven't gotten any answer wrong so far...funny how my whole bio grade depends on it :p
  9. S

    Maths D 22

    Whatabout relative velocity?
  10. S

    Maths, Addmaths and Statistics: Post your doubts here!

    Haha so do I :p and yes that could happen..like if u can't differentiate further or if your x value turns out to be zero or something. In that case add and subtract .1... @saadmughal what do we subtract it from? :p
  11. S

    Physics P1 and P2 Discussions

    Ate u sure,"? Wasn't it 830 or 3300 or something?
  12. S

    Maths, Addmaths and Statistics: Post your doubts here!

    Yeah I know that. Ok ok you add/ subtract o.1 to find the nature of the turning point when u can't find the value of x for d2y/dx2.. Sorry I got confused :p
  13. S

    Maths, Addmaths and Statistics: Post your doubts here!

    Then what do we use to find the value of the turning point? What if u can't use dy/dx = 0 for it? I mean what if u don't get an answer for it...u add and subtract .1 or something na? Could u explain that to me
  14. S

    Physics P1 and P2 Discussions

    But why? 180 was the last value so didn't we have to use .3 and 180to find the answer. Besides the mean value for length must have been .15 m since they were directly proportional...does anyone remember the limit of proportiobality btw?
  15. S

    Maths, Addmaths and Statistics: Post your doubts here!

    When do we use double differentiation (d2y/dx2)...is it to find the turning point? I feel like I'm forgetting everything :/
  16. S

    Maths D 22

    Does anyone have notes on relative velocity? I still have trouble making the vector diagrams and placing the angles in the correct position
  17. S

    Maths D 22

    How do u convert e^x into log form? Ln x is log(e) right? What's ln^2e? And e^ln2?
  18. S

    General paper discussion

    What was the exact question? It doesn't make sense...in order to slow down, the diver had to lose kinetic energy, which would be the case if it is converted into hear energy..oh we'll...well find out the definite answers in August..I can't risk discussing another answer. I've already lost soo...
  19. S

    General paper discussion

    Did the person slow down at the end? Cause that was a dead giveaway that heat energy was produced only at the end
  20. S

    General paper discussion

    ....as he was falling? The conversion of energy would include the initial stage of it as well. When he was still, ge had no kinetic ebergy, butcas he fell, his gravitational energy converted into kinetic energy since he began to move. But when he started to slow down, his kinetic energy was...
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