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Recent content by Ali_00921

  1. Ali_00921

    Physics: Post your doubts here!

    Why does a capacitor store energy but not charge? Thanks In Advance. :D
  2. Ali_00921

    Physics: Post your doubts here!

    May June 2013 52. Q1. Can someone draw.the.diagram. Please. Thank You In Advance :)
  3. Ali_00921

    Physics: Post your doubts here!

    How do I justify Significant Figures?
  4. Ali_00921

    Physics: Post your doubts here!

    Din't get the λ part..
  5. Ali_00921

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s07_qp_2.pdf Q.5 b(ii)?? Kindly.. Thanks in Advance
  6. Ali_00921

    Physics: Post your doubts here!

    Aaaahhh, now i get it.. Thank you so muchh!! But what if we have constant velocity increase in a VELOCITY-TIME GRAPH, can we use the formula (a=v-u/t)?
  7. Ali_00921

    Physics: Post your doubts here!

    Kindly, can someone explain the relation between acceleration and velocity? And how to find acceleration from a velocity time graph?? Thank's in advance fella's
  8. Ali_00921

    Physics: Post your doubts here!

    Naahh.. Din't get it.. From these equations how can we find the value of T1 and T2?
  9. Ali_00921

    Physics: Post your doubts here!

    T1sin50° + T2sin40° = 7.5 .. HOW DO I FURTHER SOLVE THIS TO FIND THE VALUE OF T1 AND T2?
  10. Ali_00921

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w11_qp_23.pdf ...... QUESTION NO. 1(D)... HOW TO DETERMINE T1 AND T2 THROUGH VECTOR DIAGRAM... THANKS IN ADVANCE
  11. Ali_00921

    Physics: Post your doubts here!

    But why (0.5+0.5)
  12. Ali_00921

    Physics: Post your doubts here!

    A thermometer can be read to an accuracy of ± 0.5 °C. This thermometer is used to measure a temperature rise from 40 °C to 100 °C. What is the percentage uncertainty in the measurement of the temperature rise? A 0.5 % B 0.8 % C 1.3 % D 1.7 %............. THANKS IN ADVANCE
  13. Ali_00921

    How was Chemistry P1/2

    what was the concentration for Potassium Hydroxide? And what is balanced equation for sulphuric acid and potassium hydroxide?
  14. Ali_00921

    Physics ATP; 24 hours passed

    I wrote South Too... But Ma friends were telling the compass usually points towards North always? Is that true?
  15. Ali_00921

    Physics ATP; 24 hours passed

    Sides of the magnet were South South OR North North??
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