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  1. Catherine_1

    Physics: Post your doubts here!

    Yeah i did.:D Thank youuu so much!:) :D :P
  2. Catherine_1

    Physics: Post your doubts here!

    Yeah, thanks:) No I just thought if you could have elaborated the method.:P Anyway, thank you so much.:) You have an amazing site btw.:)
  3. Catherine_1

    Physics: Post your doubts here!

    I can't thank you enough, for answering all my questions:D But Thaaaaank youuuuuu, seriously.:P :) Actually, in the relay part I am still a bit confused if you could help me out, it would amazing.:D I have elaborated my doubt in conjunction with your explanation :) Thanks, once again.:)
  4. Catherine_1

    Physics: Post your doubts here!

    Yeah Physicist could please explain this question a little more elaborately please.:) :D
  5. Catherine_1

    Physics: Post your doubts here!

    Hey, Could anyone, please explain me why do we use two diodes, when operating a relay. The explanation given above doesn't seem consistent to me, since even if there is one diode D1, it won't allow the unwanted current to go to the op amp so how exactly is diode D2 helping anyway?:) Thank you.:D
  6. Catherine_1

    Physics: Post your doubts here!

    Thank you so much for your help.:) :D I just have a slight doubt, till now I was just aware that for RMS value we take Irms=I0/sqrt 2 so could you please briefly describe the area method used to answer it?:)
  7. Catherine_1

    Physics: Post your doubts here!

    Hey:) Could anyone please help me out with the following questions it would be of immense help:- I have no idea why both are 3A :3 The b) part of the following is my doubt In the ms for b part where did the 25J come from?:P In this my doubt is the 5 c ii part So for averaging why...
  8. Catherine_1

    all cie full textbooks available in pdf format

    Hey Ghislain Leonel Do you think you can catch hold of the following economics textbooks-: https://www.bookdepository.com/Cambridge-International-Level-Economics-Peter-Smith/9781444181364...
  9. Catherine_1

    Exam in Feb-March 2016

    I wish too!:( Though, my teachers mentioned that in our zone, we(lol I mean Indians:P) have always been the best performers so the likelihood of papers being tough is higher.Let's just hope for the best and be positive, though!:)
  10. Catherine_1

    Exam in Feb-March 2016

    Yeah, true it is assumed that the papers would be tougher than normal.:(
  11. Catherine_1

    Chemistry: Post your doubts here!

    You're welcome.:)
  12. Catherine_1

    Chemistry: Post your doubts here!

    So see since you are calculating the lattice energy we take into consideration the respective enthalpy change of atomisation and electron affinity/ionisation energies(depending on whether it is a metal or non-metal). In this case, 1 mol of Cl2 molecule will form Cl atoms which will further form...
  13. Catherine_1

    Chemistry: Post your doubts here!

    So, I doubt that the marking scheme cites 244 kJ/mol since I think it would be 242 kJ/mol as per the data booklet and that is the enthalpy change of atomisation of Cl2 molecule which you have to take into consideration during the calculation.
  14. Catherine_1

    Self-love, my liege, is not so vile a sin as self-neglecting - Shakespeare

    Self-love, my liege, is not so vile a sin as self-neglecting - Shakespeare
  15. Catherine_1

    Self-love, my liege, is not so vile a sin as self-neglecting

    Self-love, my liege, is not so vile a sin as self-neglecting
  16. Catherine_1

    Chemistry: Post your doubts here!

    No no...It's perfect thanks a tonne!:) :D
  17. Catherine_1

    Chemistry: Post your doubts here!

    Can anyone please help me out with the apparatus of the above question?:) Is is 2012 paper 52 summer session Marking scheme
  18. Catherine_1

    Chemistry: Post your doubts here!

    See basically in your diagram what you're doing is shifting the groups in two dimension however in reality it would be the three-dimensional model the whole bond along with the group would rotate.So on rotation of 180 degree the bonds that go in come outwards and those that come out intially...
  19. Catherine_1

    Chemistry: Post your doubts here!

    See since this is in three dimensions and not two when you rotate G the COOH which is coming out of the plane of paper would now go into the plane of paper and NH2 would come out,however rotating J from the right side the OH bond will go in and H will come out which is what we want.:)
  20. Catherine_1

    Chemistry: Post your doubts here!

    Hey, Can anyone please help me in Q2 e) part Paper 5 summer 2007?:) http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s07_qp_5.pdf Please?:) Thank you. :")
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