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Recent content by waleed302

  1. W

    Pakistan Studies, Islamiyat and Urdu: Post your doubts here!

    Dude, do you have the notes for the articles of faith and pillars? The other notes were super helpful! My e-mail address is [email protected]. Thanks in advance :D
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    Physics: Post your doubts here!

    Let me try: C=Q/V, and they tell you for a capacity of 30 micro Farads the max voltage is 6V. So substitute these values: 30=Q/6. Q=180. So now we've got the charge on one of the capacitors. In parallel the combined capacitance is 20, and they're asking for the max voltage, so plug these values...
  3. W

    A level Biology: Post your doubts here!

    If someone could give a list of the required plan diagrams( i.e. cross section of stem etc.) we should be able to draw for Biology paper 3 it would be greatly appreciated :)
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    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s13_qp_11.pdf q18 why is it B?
  5. W

    Physics 9702 P21

    Guys I think it was 7 waves because there were 6 crests and half a wavelength on either side.
  6. W

    Physics: Post your doubts here!

    Yes, after you add 0.02, you have to take into consideration the other information they give you which is +-1 digit. Since it's asking for the maximum, you'd obviously use +1 digit. I know it's kind of confusing but I see no other explanation for this!
  7. W

    Physics: Post your doubts here!

    1 complete wavelength=2pi rads 0.25 wavelength= 0.5 pi rads 0.5 pi = 90 degrees
  8. W

    Physics: Post your doubts here!

    90 degrees I think.
  9. W

    Physics: Post your doubts here!

    But isn't the resistance of C decreasing with voltage? Why would the PD through it be greater than in R? Also, isn't the current through R constant? Why would there be a 'curve' for R?
  10. W

    Physics: Post your doubts here!

  11. W

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w04_qp_2.pdf :eek:Q6 c HELP! :cry:
  12. W

    A level Biology: Post your doubts here!

    Does Rhizobium require anaerobic conditions to fix nitrogen?
  13. W

    I have no idea what I'm doing here.

    I have no idea what I'm doing here.
  14. W

    Yaaaay , getting an A* In chemistry, READ!

    Oh, the irony is killing me! Firstly, your grammar is all wrong. Secondly, half of what you wrote was utter nonsense-"your mothers eye"(Dafuq?!) Also, i don't think he has to prove anything to you just by looking at your retarded and nonsensical posts. Seriously, if you're trying to prove your...
  15. W

    Chemistry DONE!!!

    Which variant?
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