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  1. jkwii

    Cumbo EUGs

    anyone interested in this? i sure will be!
  2. jkwii

    o-week @ cumberland 2009

    what's the deal this yr? pretty similar to other yrs or will there still be stalls and stuff. i got a friend at usyd already talking about joing suufa (frisbee association) but not sure if i can do it a cumberland.
  3. jkwii

    enrolment

    hi. i have a little hazard going on. i will be away on the uni enrolment day at usyd for physio and exss which i know i'll get into at least one of them. so anyway, have been reading and it seems hard to enrol if i'm not there. help cos i think there may be some problems with units of study...
  4. jkwii

    Ultimate Frisbee Club

    Looking to create a new Ultimate Frisbee Club. If you are interested the actual matches will be on a Tuesday night. Both males and females needed. If you want a basic walkthrough go to Australian Ultimate Frisbee is a lot of fun and esp. if you wanna just get out there and run send me a PM.
  5. jkwii

    links to harder perms and comms Qs

    i want to practice some more of these but it doesnt seem to be easy to finder really hard ones? help or post your own hard ones?
  6. jkwii

    pd notes.. want some?

    got pd notes for core 1 & 2 as well as sports med and improving performance. also got 2008 independent paper with my sols. gimme a pm
  7. jkwii

    writing a debate - HELP

    got a bnw/br question that asked me to write a debate. what kind of language do i use and is the structure similar to the essay? not sure... help
  8. jkwii

    non-uniform circular motion

    is this in the hsc course cos i am learning it from my friend's tutor's notes and i was like w...t...f... it has Qs like motion in a vertical circle and shit like that where w is a constant.
  9. jkwii

    circular motion... eww.

    it sucks. but seriously for a moment now. got 2 Qs. they both from coroneos supplement. 7. if a particle P moves so that its angular velocity about 2 fixed points R and S is the same, prove that P describes a circle passing thorugh R and S. 9. A point P moves with uniform velocity u...
  10. jkwii

    Q that i can seem to get out...

    i got most of this question out but i can seem to get the calculations out... here T is the time for a lift through a shaft in the Earth to travel to one side to the other side of the surface and G is the gravitational force while M is the mass of the Earth gives T = pi Sqrt[R^3/2GM] G= 6.6 x...
  11. jkwii

    ntegrating w/ abs value??

    I = S (2- |x|) dx from 3 to -3.. do u use the graph?? like area??
  12. jkwii

    harder 3U: inequalities

    how do you do this one? last Q in patel. for x, y, z, a, b, c are real numbers prove that: (x^2 + y^2 + z^2)(a^2 + b^2 + c^2) > (or equal to) (ax + by + cz)^2
  13. jkwii

    projectile motion

    i got a Q from patel. it looks easy but maybe i'm having a bad day. the nozzle of a water hose is at a point O on the horizontal ground. the water comes out of the nozzle with speed U m/s. neglecting air-resistance, prove that the water can reach a wal at a distance d from O, if U^2 . gd where...
  14. jkwii

    sports med assessment

    answer this! discuss the major safety issues facing children and young athletes in sport
  15. jkwii

    volumes help!

    got a Q from patel. the base of a solid is x^2 + y^2 = 8x and every plane section perpendicular to the x-axis is a rectangle whose height is one third of the distance of the plane of the section from the origin. Show that the volume of the solid is 64pi/3.
  16. jkwii

    definite integrals

    some one must have seen this integral b4. pi/4 ∫ e^x/(1+e^x)cos^2x dx -pi/4
  17. jkwii

    reduction formula

    evaluate integral from 0 to pi/2) of cos4x-cos10x)/sinx dx
  18. jkwii

    integration by parts

    can someone explain how to integrate xarcsinx?
  19. jkwii

    identifying ions

    got a Q from the CCHSC booklet A solution was thought to contain either lead nitrate or calcium nitrate. Samples of the solution gave white precipitates with dilute HCl, H2SO4 and NaOH. Which of these ions is present? Explain.
  20. jkwii

    integration by substitution

    i dont know what subs to use for 0.5a ∫ dx/(a^2-x^2) 0 and pi ∫ dx/(1-cosx) pi/2 and pi/2 ∫ dx/(4-2cos^2x) 0
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