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  1. 5

    Free HSC Resources

    Emailed you..... MUCH APPRECIATED!!!!!
  2. 5

    Is not intensity affected by photon energy?

    BUt higher frequency --> greater energy per photon and therefore more energy per unit area i.e. greater intensity (whihc is power per unit area)..... so I really dont see how u can say changing the energy of a photon doesn't affect the instensity of the emr..... or do I have it all wrong?
  3. 5

    Is not intensity affected by photon energy?

    In the Excel book it states "Intensity is independent of photon energy". Taking intensity to equal power/area, doesn't an increase in photon energy mean more energy and hence more power per unit area? Thanks in advance
  4. 5

    2010 Philosophy Distinction course

    Probably a stupid question but where are all the residentials held for philosophy 2010??? Is it the university of New England or some other place?
  5. 5

    Anyone got Usyd Combined Med Interview Offer?

    wow, congrats guys, amazing achievment.... i've heard rumours that usyd is actually making undergrad med more accessible for 2010, has anyone heard of this and does anyone have any info?
  6. 5

    Share your 2009 HSC results here

    bloody amazing.... for me: 3u maths - 97 4u maths - 97
  7. 5

    General Thoughts: Mathematics Ext 1

    lol, with that combinations q6, i had diagrams, colour codes, captions, the whole lot! only worth 1 mark :( spent about 5 mins, could have used it more wisely
  8. 5

    General Thoughts: Mathematics Ext 1

    niceee, with the first part of 7ci i just showed that angle PSR = phi - theta and then said that since its an angle its >0 therefore phi>theta, is that valid?
  9. 5

    General Thoughts: Mathematics Ext 1

    sqrt(h(a + h))??? i just did it and got the same answer
  10. 5

    General Thoughts: Mathematics Ext 1

    im pretty sure ill get 75+ with max at 80/84 That tank q (5b) screwed me for some reason :( Was the max value of theta sqrt(a(a + h)) for q 7bii? was 7cii sqrt(ah)? also, could someone please explain why if P is on T, theta is max
  11. 5

    very quick reaction force q

    Woops, the particle is moving along the outer surface of the cone... im so blind
  12. 5

    very quick reaction force q

    cambridge q4a excercise 7.5(Theres a particle performing circular motion on the inside surface of a cone): The worked solution has the reaction force pointed outwards from the cone and the answer in bob reflects this. I thought the reaction force opposes the force the particle applies to the...
  13. 5

    Cssa

    just got it back 107/120 over the moooooooooooon!
  14. 5

    3U CSSA Trial

    lmao, i spent ages (about 7 minutes) trying to simplify my sin and cos soup, to then realise the t method which got me the answer
  15. 5

    3U CSSA Trial

    I really hope it was 2 because i came out of the exam asking eveyone what they got and they all said k = 1
  16. 5

    3U CSSA Trial

    OH SHIT! i realise what i did --> i got 15, then found the probability of getting 15 right and multiplied that by 50 WAT THE FUK! :burn:
  17. 5

    3U CSSA Trial

    did u get 6 for the most likely no of correct guesses? *crosses fingers*
  18. 5

    3U CSSA Trial

    i got (1/2)inversesin(something really big and scary) i prob did it wrong
  19. 5

    3U CSSA Trial

    did everyone get 6 for the most likely number of correct guesses?
  20. 5

    quick permutations q

    Find the number of ways in which the letters of the word EXTENSION can be arranged in a straight line so that no two vowels are next to each other My answer: consonants can be arranged in 5! ways, vowels can then fit in 6 spots and thus can be arranged in 6x5x4x3 ways, therefore, total...
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