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  1. K

    I studied for the last 2 days for THAT?

    I got 261302ms2 as v=1.06 x 10^4 (if i remember right) s=215m if you got something like that, then It should be right (unless someone can prove me wrong here )
  2. K

    estimation

    I can't really multi-choice 14/15 but the rest...well depends whether the markers like me or not :p I answered them just don't know if I answered them the way they want me to
  3. K

    I studied for the last 2 days for THAT?

    excellent, I was wondering why everyone else was getting something fishy. B is definitely the answer for 14 at that time, Germanium was the only one that could be purified enough to be suitable as a good semiconductor A is just stupid C is plain wrong D is plain wrong, as germanium is the...
  4. K

    MC Answers

    Laz, your not wrong. you've just taken the wrong period of time. You've taken the time period from when its parallel to the field, to when its 90 degrees to the field. However when your using that method (of changing flux), you have to take an instant in time. So at P, when the armature...
  5. K

    MC Answers

    lol BJ, that was what I was trying to do...for the roller coaster one I so knew they should've made that australia's wonderland excursion at the beginning of the year! Then I'd actually remember
  6. K

    MC Answers

    From a stationary observor, they will see that time slows down on the spaceship, and that it contracts in length For the person in the ship, everything appears normal. That's because they're accelerating at the same speed as the ship, so they will see that the time appears normal, and that...
  7. K

    MC Answers

    I didn't use lenz's law to figure q10 out I used positive charges. Consider a positive charge on the left side (say) Moving from P to Q, its effectively moving up, so the 'current' is moving up, the magnetic field is moving right, so the positive charges are forced clockwise. The induced emf...
  8. K

    Which is the best private school? have your say.

    consumerism? oh no, I'm just reflecting on how we didn't get our moneys worth :) you would too if you paid tens of thousands and got so little back! no consumer sovereignty hehe
  9. K

    HSC Physics Aftermath

    I reckon so what's going to happen to the guys next year!?!? They even get to lose 1/3 of the syllabus that we had... they'll all be going to sleep after the first hour :p
  10. K

    I studied for the last 2 days for THAT?

    I got a different answer for the cannon one plus I think your equation is wrong. if you use v^2=u^2 + 2as then you get a=v^2/2s your missing a half my friends got the same as me... but yes, incredibly easy!
  11. K

    HSC Physics Aftermath

    much easier than I thought it would be and I thought it was going to be easy anyway this is kinda bad. everyone I know thought it was easy. I doubt there's going to be much differentiation in the marks lol religion, I'm not even going to bother studying that :p
  12. K

    MC Answers

    I got q4 wrong. textbook question, but forgot whether it was Q or R :p good enough I reckon. I could've done worse (I have before!)
  13. K

    drift velocity

    I wanted to sink that oil rig... mainly cause it took me ages to get it into my head reduction adds adding reduces
  14. K

    OMG Brain Pain

    oh yea, woop. didn't read that part thanks spice :)
  15. K

    Superconductor Question ?!?!?

    The current is inside the superconducting material - its just the free electrons moving around and they are the reason why the magnetic field is rejected If you read the section on energy storage using superconductors, you'll see that they can store the current, without being connected to...
  16. K

    OMG Brain Pain

    v^2=u^2 +2as resolve for a i.e. 0=81 + 2(11)a a=-3.68ms negative, since its downwards
  17. K

    drift velocity

    I=charge x drift velocity x cross-sectional area x density charge is constant (electron charge, since we're talking only talking about that) cross-sectional area constant density can be affected by temperature that's it really. you've basically said it all. If "I" is constant, then...
  18. K

    Relativity of Simultaneity

    lol, but for all you know, you could just get denser, rather than fatter :p of course you'd scream the moment you went on the scales or the scales would at any rate
  19. K

    Which is the best private school? have your say.

    hmph, I wish they solved our noise problem by putting aircons in! but noo, of course not. they do it the smart way and put thicker windows and bricks instead :rolleyes:. But we do get cool shutters that we can open and close with a switch! yay...:rolleyes: lol, the aquatics centre's...
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