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  1. DumbIdiot

    Range of a function.

    Thanks brah Good good lad Keep goin... :))
  2. DumbIdiot

    Doubt in english question

    What does this question mean? Using interior monologues (between 300– 450 words each), write a script for radio called ‘The Two Faces’... It's in ON06 paper 2 How do you write an "interior" monologue for radio?? According to me interior monologue is what I'm thinking of, what's going on in my...
  3. DumbIdiot

    IGCSE PHYSICS CHEMISTRY BIOLOGY PAPER 1,3,6

    lol getting a "C" is kinda like a bad fail mm im guessing 30% so just read the book and at least ur gonna get a C although if ya study harder u should get an A at least i mean thats just about 67% show me who agrees with me :)
  4. DumbIdiot

    Physics: Post your doubts here!

    Please help with Q.11, 26 and 31 of http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w07_qp_1.pdf
  5. DumbIdiot

    Physics: Post your doubts here!

    what does this mean - "testing against a criterion specified by the candidate" it is in most of the practical papers where we need to say whether the suggested relationship is right
  6. DumbIdiot

    Mathematics: Post your doubts here!

    Could someone please explain what is done in Q3 (ii), I don't understand what is done in the ms
  7. DumbIdiot

    Writing structural formulae

    I wanted to know what the correct way of writing it is, for example for compounds having a functional group on the first carbon atom what is the right way of writing: HOCH2CH3 or CH2(OH)CH3. Is the second one acceptable way of writing because I always see the first one in the ms. Please tell for...
  8. DumbIdiot

    Chemistry: Post your doubts here!

    In Q1 (e) of http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w07_qp_2.pdf What formula is used? Shouldn't it be deltaH(products)-deltaH(reactants)? I don't think that's the formula they used in the ms. Please explain
  9. DumbIdiot

    Chemistry: Post your doubts here!

    Energy needed to remove 1st electron from an atom
  10. DumbIdiot

    Chemistry: Post your doubts here!

    Q1 (e) of http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s07_qp_2.pdf What is the reaction between hydrazine (N2H4) and HCl like, the ms says it is a neutralisation reaction and a dative bond forms but can anyone explain how and...
  11. DumbIdiot

    Physics: Post your doubts here!

    In Q4 (b) (iv) 3 of http://xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w11_qp_23.pdf why are lost volts added? ms: http://xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w11_ms_23.pdf
  12. DumbIdiot

    Physics: Post your doubts here!

    there are 2.5 waves within 39 cm(count heaps from 1 to 8 so node is at heap 2 then heap 3 and then heap 4. 1 wave has 2 nodes so 2.5 waves) hence lambda is 0.39/2.5=0.156 v=f(lambda) so v=2.14 kHz*0.156=333.8 ms^-1
  13. DumbIdiot

    Physics: Post your doubts here!

    Isn't that the volume of a sphere? So, here mean separation is the distance between 2 adjacent molecules right?
  14. DumbIdiot

    Physics: Post your doubts here!

    what is mean separation and how do i calculate it? that question is here: http://xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s07_qp_2.pdf Q3 c(ii)
  15. DumbIdiot

    introduction

    this isn't where you post this!! you should start a new thread
  16. DumbIdiot

    May/June 2012 chem practical help

    Thanks to both of you
  17. DumbIdiot

    May/June 2012 chem practical help

    In mj 2012 chem paper 33 I don't understand this question: In question 1 there are 3 steps; in step 3 a titration is to performed, it is told to titrate the sol. from step 1 but not mentioned against what . please tell if anyone knows this asap
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