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  1. Nidz-Ahmed

    AS Physics P1 MCQs Preparation Thread.

    find the "2" of the upward vertical component to balance the downward component . downward component is 4.2*9.81=41.20 since there are two upward component =41.20/2 this the upward component of one side sin 25 * x =20.6 x= tension is equal too 20.6/sin 25 =48.7 ~ that 49
  2. Nidz-Ahmed

    AS Physics P1 MCQs Preparation Thread.

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w12_qp_12.pdf can anyone help with this Q 30 .34,36, 37,39?
  3. Nidz-Ahmed

    Physics P5 All Info You Need !!

    Use a Meter rule to measure the length of the rod , and a protractor to fold the metal rod into the required angle
  4. Nidz-Ahmed

    Physics P5 All Info You Need !!

    Independent variable - varying the Angle Dependent variable - measuring the The angular speeed But i have no Idea to vary and measure the variable
  5. Nidz-Ahmed

    Physics P5 All Info You Need !!

    Can Someone Explain the working Of GM tude http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_s03_qp_5.pdf ( Its the second Question )
  6. Nidz-Ahmed

    AS (Biology) P1 MCQs Preparation Thread.

    can someone help with http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20%289700%29/9700_s11_qp_13.pdf Question 3 , 13 , 15 , 16 29 with explanation please
  7. Nidz-Ahmed

    AS (Biology) P1 MCQs Preparation Thread.

    Ans 19 - D -> Its only after all the Separation has taken place , The cytoplasm Start to divide to form two cells 20- C -> it says Reduction Division so Count all the chromosome and double it to get the diploid number 23-A -> this Cuz the amino acid is shown twice for...
  8. Nidz-Ahmed

    ---> Physics Paper 4 Past Paper Discussion <---

    can Someone Please explain how analogue signals are converted into bits ?
  9. Nidz-Ahmed

    AS PHY PRACTICAL 33

    how would u chnge the height of the slope
  10. Nidz-Ahmed

    Physics: Post your doubts here!

    ph. http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_s07_qp_2.pdf 4 d(i) Can Some one Specify the shape of the graph
  11. Nidz-Ahmed

    Physics: Post your doubts here!

    Thanks Alot
  12. Nidz-Ahmed

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_s06_qp_2.pdf 2 a(ii )
  13. Nidz-Ahmed

    Physics: Post your doubts here!

    Can some one help me with this ? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20%289702%29/9702_s06_qp_2.pdf Question 2 c (iii) Thanks
  14. Nidz-Ahmed

    Chemistry: Post your doubts here!

    Uhm i Dunt knw that was just a guess
  15. Nidz-Ahmed

    Chemistry: Post your doubts here!

    Standard Enthalpy is high When large Amount of energy is released , So When the bond energy is low , the bonds are easily dissociated , so when products Are formed large amount of energy is released to the surrounding
  16. Nidz-Ahmed

    Chemistry: Post your doubts here!

    The temperature at which the Atmospheric pressure is equal to the vapor pressure is the boiling point of the liquid .... can Someone please Explain the Concept Behind this ?
  17. Nidz-Ahmed

    Chemistry: Post your doubts here!

    Sorry was in a hurry Uhm thats your answer Carboxyl compounds (aldehydes and ketones) do not make hydrogen bond within themselves Cuz The hydrogen atom is attached to Carbon , For hydrogen bond to occur ,A Electronegative elements with a non bonding pair of electron (lone pair) must be...
  18. Nidz-Ahmed

    Chemistry: Post your doubts here!

  19. Nidz-Ahmed

    Chemistry: Post your doubts here!

    The reaction of hydrogen sulphide with sulfur dioxide gives sulphur as one of the products. h H2S(aq) < -------> 2H2+(aq) +2e+S(s) SO2(aq)+ 4H2+4e< -------> S(s) +H2O how many moles of hydrogen sulphide are neede to react with sulphur dioxide to produce 1mole of sulphur ? Help? a- 1/3 mol...
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