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  1. ~caramello~

    How much Study for Eco?

    I dun think you need that much essay practice for eco. If you know your content well enough and just include stats to support your arguments you should be fine.
  2. ~caramello~

    help pls D: (superannuation q, HSC 1984)

    Make sure you put 28 terms in the GP because its inclusive.
  3. ~caramello~

    the heardest hsc paper??

    2008 is def the easiest :D
  4. ~caramello~

    Dropp chem or physics?

    Imo Physics is easier and more interesting than chem. However, i think chem has been scaling higher in the last few years.
  5. ~caramello~

    ATAR Estimate please

    96.95 GO! scale me up :D
  6. ~caramello~

    marks?

    I would say 2u 2008 paper was the easiest paper I've done.
  7. ~caramello~

    Rate my Belonging Story

    Imo, i think you describe the situations and stuff too much but you didn't include anything on how you FEEL. I reckon try to add more emotion into it. Fear, agony, hopelessness etc. "This place was so strange to me. Creatures would gather and press themselves against the glass – banging...
  8. ~caramello~

    Rates of Change

    http://community.boredofstudies.org/13/mathematics-extension-1/210282/applications-calculus-physical-world.html
  9. ~caramello~

    Applications of Calculus to the Physical World

    question 27 \frac{d\theta }{dt}=0.1 r/s A = \frac{1}{2}AB sin C A = \frac{1}{2}(10)(12) sin C A = 60 sin C \frac{dA}{d\theta } = 60 cos C \frac{dA}{dt}= \frac{d\theta }{dt}.\frac{dA}{d\theta } = 0.1 \times 60 cos C when C = \frac{\pi}{3} = 0.1 \times 60 cos \frac{\pi}{3} =...
  10. ~caramello~

    Applications of Calculus to the Physical World

    question 22 dr/dt = dv/dt x dr/dv dv/dt = 4 so we need to find dr/dv B/h = 10/8 B = 5h/4 V = 1/3.B^2H but B = 5h/4 V = 1/3.(5h/4)^2.h = 1/3.(25h^2/16).h = (25h^3)/48 dv/dr = (75h^2)/48 dr/dt = dv/dt x dr/dv = 4 x 48/(75h^2) when h =4 = 4 x...
  11. ~caramello~

    Series Applications

    2. A factory is expanding yearly and produces 250 vehicles in the 1st year. In each successive year it increases the output by 75 cars. (a) How many cars are produced in the 12th year? Answer: 1075 (b) How many cars are produced altogether in the first 25 years? Answer: 28,750 (c) In...
  12. ~caramello~

    Series Applications

    1b) S10 = n/2[2a + (n-1)d] = 10/2 [2(4.9)+9(2.45) = 5 (9.8 + 22.05) = 159.25
  13. ~caramello~

    Rate of change help plz

    we need to find dx/dt (rate the water level is changing) dx/dt = dV/dt x dx/dV we know dV/dt = 25 cm^3/s and that V = 30x + x^3 dV/dx = 30 + 3x^2 dx/dV = 1/(30+3x^2) therefore dx/dt = 25 x 1/(30+3x^2) where x = 5 therefore dx/dt = 0.238
  14. ~caramello~

    Motions Question

    i got 48.5 too..
  15. ~caramello~

    Sucess one 09'

    first you have the specimen topic by topic questions then at the end of the module, PAST HSC QUESTIONS 2001-2003 and after that its the 2004-2008 past papers
  16. ~caramello~

    Sucess one 09'

    yea. its out and the new ones have topic by topic questions and paper by paper =]
  17. ~caramello~

    help me out.

    it would be better if you included your rank.
  18. ~caramello~

    to drop chemistry or not...

    Like fortify said, I would seriously try to get a tutor or self learn and see how it goes. If that fails, maybe drop it. 10 units a bit risky imo.
  19. ~caramello~

    Q- Application of calc to phys world.

    umm.. no. velocity is not constant. It starts off at a constant rate and changes every second (could be due to gravity/air resistance etc). I'm not that gud at explaining but here goes... ok..velocity is the speed at which something is moving. when u throw a ball up, it goes up, slows down...
  20. ~caramello~

    Q- Application of calc to phys world.

    9) its projected at 30m/s (starts off at 30m/s) and decelerates at 10m/s^2 (slows down 10m/s every second). so the equation for the velocity should be 30-10t where t is the number of seconds. b) and to find the equation of h, it is asking for the equation of displacement. hence u integrate...
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