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  1. A

    Attendance Register

    present
  2. A

    Chemistey Doubts

    than i gt it nw..:D :D
  3. A

    Chemistey Doubts

    hw do u solve q)5)b) on mj 09 this is d link fr d paper:- http://www.xtremepapers.me/CIE/Cambridg ... 9_qp_3.pdf pls help i really dont understand this question..
  4. A

    Chem Paper 1!

    this is because 3 is not a redox reaction as for a reaction to be redox, oxidation states must change.sincce all H's are at +1; all S's are at +6, and all O's are at -2 on both sides of the arrow the reaction is not a redox reaction..
  5. A

    doubt in Physics winter 10 papers !

    2 b ii)u hav 2 use d formula K=1/2MV^2 u calculated K in d earlier step and M is 0.15Kg. u substitute d values in d formula and find V.. 2 b i)since d direction is constantly changing u need a force 2 change it, that is why a force is required.. hope u gt it..:D :D :D
  6. A

    Physics - Doubts in the syllabus

    bcz a diagram fr moment of force has to have 2 weights 2 compare.. bt d question asks fr a formula fr moment of force so u write d formula only..
  7. A

    Physics - Doubts in the syllabus

    capacitors store charge. since they take time to store the maximum amount of charge they cn store.. the circuit gts its optimum amount of current only wen the capacitor is full.. so this why a capacitor is used in a time-delay circuit.. hope u gt it..:D :D :D
  8. A

    Physics - Doubts in the syllabus

    d distance is nt till the spring it is the distance from the spring to the pivot..
  9. A

    URGENT! Physics paper 3 help please!

    ur welcome..:D :D :D :D
  10. A

    URGENT! Physics paper 3 help please!

    ur welcome..:D :D :D :D
  11. A

    Physics - Doubts in the syllabus

    this is d formula fr moment of force and d question is asking hw moment of force is calculated so that is why we hav 2 give this formula.. the spring is juz der 2 to equalize d moments of d load..
  12. A

    Chemistry Paper 62 discussion

    i wrote d same thing.. :D :D :D :D i think its right bt im nt sure :unknown: :unknown:
  13. A

    physics questions.......can you help me?

    ur welcome.. :D :D :D
  14. A

    physics questions.......can you help me?

    the first side is frm the man to d middle of P.. the other side is frm d middle of P to the arrow (which shows 160N of force downwards)
  15. A

    URGENT! Physics paper 3 help please!

    energy=force*distance energy= 2000*30 energy=60,000 J hope u gt it. :D :D
  16. A

    Physics Paper 3 help needed!!!!

    rd ur txt bk and solve past papers
  17. A

    physics questions.......can you help me?

    d width of d block is 0.060 m so half of dat will be 0.030.. nw u measure d distance between P and d man which is .20-.03=0.17 (since u only measure till d center of d block itll b only 0.030 m ) u do d same wid the other side so itll b .75+.03=.78 hope u gt it... :D :D
  18. A

    physics questions.......can you help me?

    d width of d block is 0.060 m so half of dat will be 0.030.. nw u measure d distance between P and d man which is .20-.03=0.17 (since u only measure till d center of d block itll b only 0.030 m ) u do d same wid the other side so itll b .75+.03=.78 hope u gt it... :D :D
  19. A

    physics questions.......can you help me?

    2b(i) the no. of clockwise moments = no. of anti-clockwise moments.. W X 0.17=160 X 0.78(since u hav to take d measurement frm d middle of d block) W=734N.. hope u gt it.. :D :D
  20. A

    slip rings and split rings

    slip rings r used in ac generators.. they allow d current to pass out of d coil along wid d carbon brushes.. split ring commutators r used in dc motors.. they reverse d current aftr d coil passes d vertical position.. fr mre details visit dis link..:- http://glencoe.com/sec/science/physics/ ...
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