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  1. C

    space - GEO/LEO and relativity

    GEO also, due to its altitude [35,800km] is in the upper limits of the van allen radiation belts and near the edge of the magnetosphere, which can make them useful for scientific purposes/research
  2. C

    Newtons Law of Gravitation and Satellites

    You just equate the the law of universal attraction with centripetal force and you get your orbital velocity. I dont think Newton actually did that but it was as a result of his law. Did Newton suggest the cannon? I know he talked about it fired from the top of a mountain in his escape...
  3. C

    Semiconductor modelling prac!

    rofl we used the same thing are we supposed to say in the exam, "imagine a bunch of aliens and a mezzanine.." hah
  4. C

    Aftermath

    good exam, i enjoyed the evolution question =p
  5. C

    Rocket Launch relativity

    if u launch with the earth, ur direction is obviously with the earth. so ur direction is the same as the earth. now, coming back to it, how is that relative motion with the earth? the claim is that the earth's rotation gives the rocket a boost relative to the earth (its clear its boost is valid...
  7. C

    Rocket Launch relativity

    ok i can see that, but when we launch with the rotation and we want relative velocity, if u use vector addition, well subtraction in this case, the rocket relative to the earth is just whatever the rocket velocity is right? if it went against the rotatioin, then it would be rocket v - (- earth...
  8. C

    Rocket Launch relativity

    it says here that when u launch a rocket in the direction of its rotation, the rotational velocity of the launch site relative to the sunn will add to the orbital velocity of the rocket relative to the Earth, to produce a higher orbital rocket velocity relative to the Sun how is it relative...
  9. C

    First Post Im Still Cramming Hahahhaha

    nominated li0n for being online the most during nocturnal hours =p
  10. C

    WHo finished the exam???

    It's only the external that counts.
  11. C

    standard model of mattrer

    Yes it's a very open dot point.
  13. C

    the thank you thread

    when did CM tutor ever help in phys, as i recall his domain was strictly math and chem =p
  14. C

    Australian Scientist

    hmm never even knew about this...can someone clearly outline what exactly we have to know ... also, have they ever asked anything about this before? any samples etc? and this is just one dot point about australian scientists..in that list of the "X" dot points ill call them (outside the...
  15. C

    Syllabus Points often Overlooked

    i had no idea we were tested outside dot points
  16. C

    Band 6 Physics

    high scaling? no, it isn't.
  17. C

    Band 6 Physics

    whats this trend u speak of? eg?
  19. C

    the thank you thread

    Yeah, then the scene changes to the uni forums ^^
  20. C

    the thank you thread

    quite a unique place...thanks to all people who helped out others.
  21. C

    Band 6 Physics

    i think 80% raw wud do the trick
  22. C

    The 2004 HSC - Mathematics Extension 1 Paper

    wrote the wrong question in wrong booklet, spent like 5min re writing it bahhhhh
  23. C

    Equation for dividing a point AB internally/externaly

    I dont like where our public relations are heading
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