• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. S

    Chemistry: Post your doubts here!

    Logic :oops: What i was doing in P1 , was making some spaces inbetween question i dont know , and then reducing the size to fit the leaved space No the task becam easier:D
  2. S

    Chemistry: Post your doubts here!

    abby do the questions in P3 /m2 have to be in order ? or can we make our own?
  3. S

    Mathematics: Post your doubts here!

    Can you Anawer my q
  4. S

    Mathematics: Post your doubts here!

    needs Second part only . when meet x-axis what happens , just tell me this I got first one as 12x+6y-6z=48 , and second one is ( -2 , 7 , -5 ) Tell me what happens when parallel to x-axis only . For complex no. , i got step except how they used y=x f
  5. S

    Chemistry: Post your doubts here!

    P1 > 32-34 mostly P2 > 48 &above
  6. S

    Chemistry: Post your doubts here!

    How did you come to that conclusion , what i know about pka that its given by -log ka .. why pka is ph of buffer?
  7. S

    Mathematics: Post your doubts here!

    Second Part
  8. S

    Mathematics: Post your doubts here!

    No it wans't :)
  9. S

    Chemistry: Post your doubts here!

    Question 2c(iii) Find PH
  10. S

    A2 Physics | Questions and Doubts [Post Here]

    What about the explaination bro o_O Of the graph you drew and the next part(check above ) , i tagged you to tell you your answer was right but you didnt explain the two questions :mad:;)
  11. S

    Should I be giving private exams?

    Your tutor is somehow right ! But i guess what he wants most is MONEY ! If he has experience , in ALL subjects and had candidates before who were private studing and ended with A's and A*'s then he might probably be right! There are many conditions to be concerned , so check all of them and see...
  12. S

    A2 Physics | Questions and Doubts [Post Here]

    Its , easy .. when you want markcheme , just change " qp " in the link to " ms " and it will take you to the markscheme :sneaky:
  13. S

    A2 Physics | Questions and Doubts [Post Here]

    periyasamy Thats the markscheme answer : graph: square wave correct cross-over points where V2 = V1 amplitude 5 V correct polarity (positive at t = 0) So your answer is right , Plus dont forget plz to explain the second question too :)
  14. S

    A2 Physics | Questions and Doubts [Post Here]

    Help in op-amp If someone can tell me the way to draw Vout of op-amp , 9b(i) http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w12_qp_41.pdf same type of question of V out graph in w13 9b(ii) http://papers.xtremepapers.com/CIE/Cambridge...
  15. S

    Further Mathematics: Post your doubts here!

    I cant solve any one , and cant what is the extension , and which is the zero line too
  16. S

    Physics: Post your doubts here!

    Quoted : 11b(ii) sampling frequency = 44.1 Khz Since each sample consists of 16- bit word, bit rate(bits per second) = 44.1 x 1000 x 16 Now, time for recording = (5 x 60) + 40 s = 340 s number of bits generated in recording time = 340 x bit rate The writing question , I really memorize them ...
  17. S

    Chemistry: Post your doubts here!

    on Which cases we put the product at anode ? E0 is not always true ! check!
  18. S

    Chemistry: Post your doubts here!

    Ok check this: Fe2+ + 2e– ⇌ Fe -------------------- –0.44 O2 + 4H+ + 4e– ⇌ 2H2O --------- +1.23 first reaction will be reversed , so Fe2+ is produced not oxygen !
  19. S

    Chemistry: Post your doubts here!

    You are just awesome :oops:(y)
  20. S

    Chemistry: Post your doubts here!

    MgBr2 , what is the product at Anode using electrode potential ? it should be Oxygen , but the Answer given is Bromine !?
Top