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  1. C

    Non-uniform circular motion

    What happened to your 4th green bar in your rep? Hmmm... Coming from someone who goes to Smith's Hill High. :hammer: *laughs*
  2. C

    Food and drinks allowed in HSC exams???

    I believe it's an hour.
  3. C

    Non-uniform circular motion

    That is correct, as I've said before. ie. You need to be able to derive the tangential and normal components of acceleration for non-uniform circular motion. It's a 'subtlety' in the course.
  4. C

    Non-uniform circular motion

    It was ammended in 1989. The main modifications were that they put in Graphs and took out circles in conics, and introduced harder 3U I believe. I assure you that what I said earlier is still in the course, and that cambridge is a pile of **** for mechanics (esp. circular motion).
  5. C

    Non-uniform circular motion

    28 years (not 30), and every 28 years the calendars are identical. So you never know.
  7. C

    Non-uniform circular motion

    Just look at the Coroneos Supplement 4U book. It's in there. Although, my teacher did give us a more concise proof based on that. But I'm sure that he wouldn't appreciate it if I started posting all his notes on the internet, which took him alot of time to do, along with solutions of selected...
  8. C

    limits to infinity

    If the limit is infinity then no limit exists.
  9. C

    Where do you do your maths study?

    A4 paper :) With lined paper the lines get in the way of doing graphs etc so blank is good :D
  10. C

    New physics in focus book?

    Dunno, we never use the textbook :|
  11. C

    Easy qs from JR Trial

    [text]8% \ p.a. = 0.006 \ldots \ p.m.[/tex] Let P=15800 ; Monthly repayment, M = 1250 The amount owing after 1 repayment, A1=P(1.006 \ldots
  13. C

    integration questions from ruse 04 trial paper

    Just use the binomial theorem. Much nicer and less mucking around.
  14. C

    Maths Help

    What's the question?
  15. C

    Simulataneous Eq, Quad identies

    Let the parabola be of form: x2 = 4a(y-k) Through (-1,0): 1 = 4a(-k) So 4ak = -1 --(1) Through (0,-1): 0 = 4a(-1-k) -- (2) Sub (1) into (2): 0 = 4a(4ak - k) So 4ak(4a-1)=0 So a=1/4 Therefore x2 = y-k Through (-1,0): 1 = 0 -k, so k=-1 So equation of the parabola is: x2=y+1. Alternative...
  16. C

    What's the raw mark needed for state ranking?

    Really? Then someone lied to me... :(
  17. C

    Differentiation

    Basically what I said :)
  19. C

    Differentiation

    I think d/dx (sec x) = secx tanx is given in the HSC paper.
  20. C

    Food and drinks allowed in HSC exams???

    In that case, write your notes on the toilet paper? hahaha. No crumbling sounds etc XD
  21. C

    Probability

    Umm, shouldn't the answer to part (ii) be: Required Probability = [(1n + 2n + 3n + .. (n-1)n]/nn ?
  22. C

    Rounding in Physical Applications of Calculus

    November is not the "10th" month, it's the 11th month. If something takes 2 years and 11 months to occur then it occurs in November, which is the 11th month of the year. Geez, not that hard to understand: 2 whole years + 11 months occurs in 11th month of third year.
  23. C

    Food and drinks allowed in HSC exams???

    Hmm, how do they stop one from cheating/looking at their notes then :|
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