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  1. hussamh10

    Physics: Post your doubts here!

    That Is sir a tough question B part!!!
  2. hussamh10

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w10_qp_22.pdf PLZ can any one expalin me the Q6 B part how to find the total resistance between A and B
  3. hussamh10

    Physics: Post your doubts here!

    Q1 )b First of all find out the radius which is 0.488 Then Work out the uncertainity Delta R/R=DeltaV/V +DeltaL/L Delta R/0.488=0.5/15+0.1/20 We will get Delta R=0.018706 ---->Now this is the uncertainity of R^2 so we will divide it By 2 to get the Uncertainity Of R Delta...
  4. hussamh10

    Physics: Post your doubts here!

    Plz help Whole question M/J 2006 Q5 http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s06_qp_2.pdf
  5. hussamh10

    Physics: Post your doubts here!

    7.5=p x 1750/Pi(0.38x10^-3)^2/4 (put square only on D) Use the same for the Uncertanities
  6. hussamh10

    Physics: Post your doubts here!

    final answer is always in 1 S.f both of absolute error and the value
  7. hussamh10

    Physics: Post your doubts here!

    Always use the formula Pi (D)^2/4 donot use Pi R^2 it adds complicatons i have been through this problem many times and my teacher reccomended to use the other formula .......
  8. hussamh10

    What grades should I expect in my A levels? please help ^^^

    Easily A
  9. hussamh10

    Physics: Post your doubts here!

    sin is an alternative way to do this by by pyrhgras theoram it is not related with Rtheta
  10. hussamh10

    Physics: Post your doubts here!

    extension is curved here the movement of pointer shows the extension so the only way to do is to get the arc lenth.... If you did this paper how did you got the absolute error in the first question of this paper??/
  11. hussamh10

    Physics: Post your doubts here!

    In first part pointer has a deflection of 6.5 degrees so by finding out the arc lenth we will get the extension by (6.5/360)x2pi(1.5)=0.17 ii)in second part we have to find out the strain which is Extension/Original length iii)stess Force/area=(6.0x9.81)/(7.9x10^-7)=7.44x10^7 Pa Then we have...
  12. hussamh10

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w07_qp_2.pdf Q1 (ii) part why the absolute obtained error is halved?
  13. hussamh10

    Physics: Post your doubts here!

    the horizontal distance travelled .......
  14. hussamh10

    Physics: Post your doubts here!

    Because the boy had to do work against the resistance as well as to maintain the speed till 4.5 so the both forces will add (the one which cause acceleration and against the friction).Hope i helped
  15. hussamh10

    Physics: Post your doubts here!

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w05_qp_2.pdfQ5 c 1 annd 2 how to show that intensity of B at pont p ( and whaere is poimt p) is 4/9 I ...and the next part also plzz help
  16. hussamh10

    Chemistry Paper 22: Discussion and Grade Threshold

    totally agree but still hope for lower GT ...Although had an awesome paper!!
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