• 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. Mahnoorfatima

    Maths, Addmaths and Statistics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Mathematics%20D%20(Calculator%20Version)%20(4024)/4024_w12_qp_12.pdf QUESTION NO: Q3 b. I have calculated the area then divided by 2. Why is it wrong? And how come the answer's 10? QUESTION NO: 8 both parts. QUESTION NO...
  2. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    I don't get 15. ? WHats equal?
  3. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    file:///C:/Users/compaq/Downloads/5054_s13_qp_12%20(2).pdf Check out question number 15. And in question number 7 , the particle's moving in a constant speed so the resultant should be 0 but my answer's wrong why? And why is ques 13 c?The diver's first jumping from a height so thats gpe. Then...
  4. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    In calculating wasted energy do we subtract the output from input???
  5. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Physics%20(5054)/5054_s10_qp_22.pdf Question number 10. B part ii and iv. How do I calulate the number of pulses? I understand that one pulse is taking 1x10^-6 seconds. What next? And in 4 what wil happen due to cracks...
  6. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    But if you look at amphoteric oxides they can be seen as acidic as well as basic oxides. when they're reacting with acids they'll be known as acidic oxides. No? Not sure but its my perception.
  7. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    NO is not acidic its neutral. While NO2 is acidic.
  8. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Physics%20(5054)/5054_s10_qp_12.pdf Question number 26? How do we know which switch to close? In question 27 the answer is that if the length of the wire is decreased then the value of resistance wont change. How come...
  9. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    The resultant force in an object moving in a circle would be towards or away from the circle? If its towards i.e centripetal than what is the centrifugal?
  10. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    So you mean that for calculating the time we have to cosider ONE wave ONLY? And one wave means 2 in phase points i.e one crest and one trough successively. Right?
  11. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    But if you look at question 15 in the same paper both options are given although the ms says that it doesn't expand.
  12. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w12_qp_12.pdf Question number 7. Why is it D???? Question number 29.from x to y the resistance should be 6 only. Why is my answer wrong? Question number 36. I so dont get this cro shit. :/ And how do you...
  13. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Can I ask some math questions? :/
  14. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Nope the energy changes. In an exothermic reaction more energy is released during BOND FORMATION than absorbed during BOND BREAKING. Whereas in an endothermic reaction more energy is ABSORBED during bong breaking than released during BOND FORMATION.
  15. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    ANd OCT/NOV 2012 p22 ques 2 aii . how do I draw the graph?? qs 6 part b?:barefoot::p:p:p:D
  16. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w09_qp_2.pdf Question 11 b full part anyone?? ANd The EITHER ci And OR cii and ciii
  17. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Thank you so much for clearing up my probs!
  18. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Oh LOL :ROFLMAO: right. Thats what I do when I panic :mad: Plus in the next part when it says mark where would the image be formed??? Then what do I do?
  19. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    By one wave you mean????
  20. Mahnoorfatima

    Biology; Chemistry; Physics: Post your doubts here!

    Yeah but why are we equalizing both of the densities??
Top