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  1. CharlieB

    Difference between photocells and solar cells??

    solar cells = photovoltaic cells. they convert solar energy to electrical energy nekkid is right with photocells. they are also used in electric 'eyes' and light meters
  2. CharlieB

    2Pac Shakur

    Immortal Technique, Jadakiss, Styles p, DBlock, Roots n Mos..............................need i say more.
  3. CharlieB

    Hertz calculating velocity of radio waves

    he already knew f from the frequency of the electricity and by working out the wavelength from the interference pattern, he was able to work out c. (c= f x lambda)
  4. CharlieB

    Private/Social costs of logging rainforests

    i put labour costs for private costs but i also put oppurtunity costs... do you guys think i'll be marked down?
  5. CharlieB

    Multiple choice answers right here..

    meh... i think i got 19/20 damn q14
  7. CharlieB

    Economics Exam

    the multiple choice were fair and the essays were to be expected, overall i think i did pretty well
  8. CharlieB

    Does Q6 (a) miss anything?

    the question was pretty straightforward... they told you the other quad was cyclic so it obviouslt involved the exterior angle thing
  9. CharlieB

    Scenario

    foetal /lame
  10. CharlieB

    To the SMH Reporter or other VIP

    yeh i agree, i liked this exam
  11. CharlieB

    Locus of R

    it wasnt the directrix
  13. CharlieB

    Dear 3uniters

    your sig is huge eska
  14. CharlieB

    how did the 4Uers go?

    after doing pretty good in the 4U exam i went into 3U pretty confident. i reckon i got in the high 70s /84 seems like doing 4u paid off for me
  15. CharlieB

    anyone know....

    some guy in ruse yr 12 got 99 in 4u when he was in yr9
  16. CharlieB

    The 2004 HSC - Mathematics Extension 2 Paper

    ive lost bout 19 marks so far
  17. CharlieB

    Is 12 units too much???

    drop pe it prob wont count if your alright at those other subjects
  19. CharlieB

    amphiprotic

    you have to use H3O and OH not just 2 H2Os because amphiprotic nature occurs under diff conditions... at least thats what our teacher told us
  20. CharlieB

    now that you've done the exam what do you think you'll get

    high 80s........
  21. CharlieB

    Q14 in multiple choice??

    ppl seem to have gotten a or d i put a
  22. CharlieB

    Multiple Choice Answers

    1a 2a 3b 4b 5c 6d 7d 8d 9a 10c 11a 12c 13c 14a 15b i suck tho... :(
  23. CharlieB

    Sc

    Can someone tell me the exact dates of the SC and the date we get our results back?? cos i gotta have work expierence the upcoming weeks. thanks advance.
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