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  1. girlworld_club

    Life is beautifull

    We are currently studying life is beautiful, i was wondering if anyone had anything useful. absolutely anything about the movie - essays, techniques etc.
  2. girlworld_club

    solve simple

    x^2 > a^2 how do you solve?
  3. girlworld_club

    differentiating question.

    y= ax^2 + bx + c passes through the point (1,6). The tangent there is parallel to the y axis whilst the tangent at x=3/4 is inclined at 45degrees to the x axis. Find the values of a,b, c. This a 2 unit prelim question. any help or full working would be great.
  4. girlworld_club

    Just wondering if you need to know this for preliminary:

    It is to calculate molarity: M= n/v Molarity = number of moles/volume
  5. girlworld_club

    How much of HSC chemistry involves maths?

    I am currently undertaking preliminary study... The only mathematics involved is to do with the mole as well as redox equations. Just wondering how heavy is the maths in chem next year?
  6. girlworld_club

    My ranks

    My school is ranked in the 200's, but the exception- our cohort is very strong this year. ranks: English: 3/80 Maths: 2/25 Chemistry: 2/20 Biology: 8/40 CAFS: 1/30 Religion: 1/40 usually it's only 15 students which manage to get a 90+ atar at my school. However, my marks have been pretty low...
  7. girlworld_club

    Chemistry question on mol

    This is a relatively new concept to me. Please show full working and explanation please! 1. Consider 0.374g aluminum chloride, AlCl3 It contains how many moles of a) Aluminum b) Carbon 2. Calculate the mass of one molecule of sucrose. and finally 3. A crystal of table sugar weighs C12H22O11...
  8. girlworld_club

    James ruse preliminary past paper, any help?

    Can someone explain how to do Q17 of this paper. It is preliminary chem. http://exampapers.web.fc2.com/tests/hs/y11/chemistry/2006JamesRuseHalfYearly.pdf thanks in advance.
  9. girlworld_club

    Basic chemistry question

    which of the following species contain the same amount of neutrons 0^2- , F^- , Ne , Al^3+ please explain how you came to your solution.
  10. girlworld_club

    Can someone solve this general logic maths problem. i am mind blown.

    http://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash3/179908_3259532175188_1600825295_n.jpg
  11. girlworld_club

    Maths help, trig

    1 + cot0 / cosec0 - cos0 = sec0 / tan0 + cot0 i have to prove RHS = LHS
  12. girlworld_club

    Biology preliminary experiment questions?

    Outline the steps, really quickly in no more than about a paragraph of how you would test that chlorophyll is necessary for starch production, as well as how would you test if light is necessary for starch production?
  13. girlworld_club

    Linear functions help

    If points (3k, 1) (k -1, k-3) and (k-4, k-5) are collinear (have the same gradient) find K.
  14. girlworld_club

    Chemistry preliminary question

    when atoms combine to form compounds, energy is released. Explain why this is so. However when nitrogen and oxygen gases combine to form nitric oxide, energy is absorbed. Present an explanation for this apparent anomaly. My first reaction to this question, dafuq?
  15. girlworld_club

    Trig question 2 unit prelim

    simplify sin(360-x) x tan(90-x) Please show full working.
  16. girlworld_club

    Easy trigonometry question

    A rhombus has one diagonal 12cm long and the diagonal makes an angle of 28degrees23minutes with the side of the wall. a) Find the length of the side of the rhombus. b)Find the length of the other diagonal.
  17. girlworld_club

    open and closed circulatory systems

    I am having trouble with this syllabus point, anyone care to explain?
  18. girlworld_club

    Hey! does anyone have access to a biology in focus preliminary?

    If you do please post here and i will get in contact with you.
  19. girlworld_club

    Bored of studies featured in SMH!

    Great HSC guide in the Sydney morning herald today! Bored of studies was also featured, have you seen it yet?
  20. girlworld_club

    When was titanium first used?

    Before it was isolated, how was titanium used in ancient times and by who? Thanks!
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