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  1. H

    Physics, Chemistry and Biology: Post your doubts here!

    Centre of mass experiment (with the lamina): How to minimize inaccuracy when marking the lines : you view the string directly in front of card. Why angle i is NOT equale to angle r in ray experiment: - thickness of pins -thickness of mirror -protractor is not precise In an experiment to do...
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    Physics, Chemistry and Biology: Post your doubts here!

    in physics p6 what is the arrangement of a set square either side of a cylinder/sphere to measure diameter?? Plz some help over here! and i would really appreciate if some one helped me with the doubts i posted earlier.
  3. H

    Physics, Chemistry and Biology: Post your doubts here!

    Assalamu Alaykum , Here's some notes for you :) -You have to record the time taken for one complete oscillation by taking the time for more than one complete oscillation and divide it by their number , and this to reduce error and get more accurate value . - check if the meter rule in an...
  4. H

    i finished more than 2 weeks before!

    i finished more than 2 weeks before!
  5. H

    Physics, Chemistry and Biology: Post your doubts here!

    somebody plz help!
  6. H

    btw how was ur ict practical exam?!

    btw how was ur ict practical exam?!
  7. H

    well... I dont know what to say any more!....but at least i would say " very many thnx"

    well... I dont know what to say any more!....but at least i would say " very many thnx"
  8. H

    sorry for bothering u, but i am really bad with understanding curriculum content, iwould relly...

    sorry for bothering u, but i am really bad with understanding curriculum content, iwould relly appreciate it if u tell me whether we have to find the inverse of 3x3 matrices (not their multiplication and division as i said earlier). sorry!!
  9. H

    what about multiplication and division of 3x3 matrices do we have this too?

    what about multiplication and division of 3x3 matrices do we have this too?
  10. H

    Physics, Chemistry and Biology: Post your doubts here!

    and here u go, these are physics formulae, hope it is helpful!
  11. H

    Physics, Chemistry and Biology: Post your doubts here!

    i know that this thread is for science subj. but this math formulae sheet would be helpful!!;):p http://www.wiziq.com/tutorial/194798-IGCSE-MATHEMATICS-FORMULA-BOOKLET-BY-BAAZ-MOHD-HILMY
  12. H

    is that every thing we have to know about this parallel thing?!

    is that every thing we have to know about this parallel thing?!
  13. H

    so if a magnitude of one vector is "r" and the other is "7r" then they r parallel?

    so if a magnitude of one vector is "r" and the other is "7r" then they r parallel?
  14. H

    hey, r u taking math 0580, if so do we have to learn about parallel vectors?

    hey, r u taking math 0580, if so do we have to learn about parallel vectors?
  15. H

    Physics, Chemistry and Biology: Post your doubts here!

    hello! how about we form a group discussion for math doubts, I think it would be good (y)
  16. H

    Physics, Chemistry and Biology: Post your doubts here!

    are all displacement reactions exothermic and redox?
  17. H

    Physics, Chemistry and Biology: Post your doubts here!

    alpha is havier and slower than beta and has stronger ionising effect. it is +vely charged while beta is -vely charged. alpha is stopped by a thin sheet of paper it travels to shorter distances compared to beta and is less penetrating.
  18. H

    Physics, Chemistry and Biology: Post your doubts here!

    i cant really understand why when carrying an experiment on a flammable liq. well ventilation is needed?
  19. H

    Physics, Chemistry and Biology: Post your doubts here!

    for hydrocarbons, when they are touched with a lighted splint do they give clear flame or yellow/blue flame?
  20. H

    Physics, Chemistry and Biology: Post your doubts here!

    not sure, some websites give platinum as more reactive while others give gold.(my teacher said it is gold which is more reactive) anyway i dont think u will need this comparission because both of them are almost non reactive with other metals and are found free in nature.
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