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  1. étudiante

    Physics Unit 4 JUNE 11/6/12

    no problem ;) n pls dont be sorry :) umm.. u want me to explain what they are or how they are used?
  2. étudiante

    Physics Unit 4 JUNE 11/6/12

    :LOL: Chill sis ;) we're not supposed to able to slove them, they are for extra research and knowledge, not from the course :) Leave dem (y)
  3. étudiante

    Physics Unit 4 JUNE 11/6/12

    Ur solving the thinking tasks too? O.o Isnt that for extension? I'll still check tho.. gimme 5 mins pls :)
  4. étudiante

    Physics Unit 4 JUNE 11/6/12

    Its A-okay :) I was praying myself :) N thanks so much :D
  5. étudiante

    Physics Unit 4 JUNE 11/6/12

    Sorry but would u mind giving me the question paper too? The place where I usually get my stuff from is blocked for some reason by my server :S Thanks a lot ^_^
  6. étudiante

    Math C4 June 2012 Preparation -v-

    Watch them in reverse order though :P Like watch the last one first n den the middle one n the last is just an example sum :)
  7. étudiante

    Physics Unit 4 JUNE 11/6/12

    Thanksh yewww so much :')
  8. étudiante

    Math C4 June 2012 Preparation -v-

    Thish guy ish sho awshum :')
  9. étudiante

    Scavenger Hunt

    Of course u dont -___- :P
  10. étudiante

    Physics Unit 4 JUNE 11/6/12

    ohkay... because I see different no of sf used in different places... btw, do u have the Jan 2012 Examiner's Reports?
  11. étudiante

    Scavenger Hunt

    :( :cry:
  12. étudiante

    Math C4 June 2012 Preparation -v-

    :LOL: No problem (y) Just remeber me in ur prayers please :)
  13. étudiante

    Physics Unit 4 JUNE 11/6/12

    EXACTLY :mad: n its not like they r MCQ papers like in CIE -.-" by the way, ne idea how many significant figuires to use for these questions? :confused:
  14. étudiante

    Physics Unit 4 JUNE 11/6/12

    aawwwhh! Well see they r saying that initially there was less luminosity and the value of L they have given us is the PRESENT one, so we need to divind (cuz we need a smaller number :P) dw, this one is likely to catch out many of us -___- Stupid examiners -.-"
  15. étudiante

    ~~jokes?? in here?? really??

    *Sandra* :ROFL: We're SO doing this :P
  16. étudiante

    Physics Unit 4 JUNE 11/6/12

    Oooooooooooooooopsssssssss! My bad *double facepalm* We have to use L as (3.9 x 10^26)/1.4 because the question says that initially it was less luminous than now by 40%. Sorry :oops: n i HATE these silly mistakes :cry:
  17. étudiante

    Physics Unit 4 JUNE 11/6/12

    Really? I din't check the mark scheme... gimme a sec pls :unsure:
  18. étudiante

    Physics Unit 4 JUNE 11/6/12

    oh maybe :) To be honest, I haven't seen the syllabus for Astrophysics yet :oops: sure no problem :) a) L = (sigma) * T^4 * A = (5.67 x 10^-8) x (5800^4) x (pi x (7.0 x 10^5)^2) = 9.88 x 10^19 W b) Surface area = 4(pi)r^2 = x 10^12 m2 c) (same formula as part a) 1.38 x 10^20 = ((5.67 x...
  19. étudiante

    Physics Unit 4 JUNE 11/6/12

    Blue supergiant? :eek: I dino we had to know abt those :eek: n yeah its perfect (y)
  20. étudiante

    Physics Unit 4 JUNE 11/6/12

    Nopes! In the first part u find L then for the second last part, multiply ur answer with 1.6 and use that value as L(sun) and multiply r with 1.06 and use that as r(sun) n substitute :) u get a new T, use both Ts and find lambda max n just tell them the difference :) oh :oops: I thought u said...
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