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  1. study-freak

    Dc motor multiple choice 2008 cssa

    Electrical+heat+kinetic power should be constant. I just wanted to change 'energy' to 'power.' (which is evident from how I was talking about C)
  2. study-freak

    Raw Marks and Test Papers in the Mail Today

    Indeed lol at chem Wtf, 55->81??
  3. study-freak

    Dc motor multiple choice 2008 cssa

    C is the most correct although I don't like it very much. I would have said that power remains constant. D is wrong as current actually decreases. Net emf=supply emf-back emf and this net emf causes current. As the motor runs faster, back emf increases as the rate of change of flux through the...
  4. study-freak

    UMAT Raw Scores

    It's difficult to give you cut-off marks as there are many factors that influence results but it's not hard to get an interview if you live in the GWS.
  5. study-freak

    What are your final UAC preferences?

    1. BSc / MBBS at Usyd 2. MBBS at UNSW 3. BMed at UNCLE
  6. study-freak

    minimal study and pulling out with a mid 90?

    Make syllabus notes in the way you answer extended exam questions. Focus not on speed, but on perfecting notes. No need to make notes for easy parts. Do at least 3 pastpapers with time limit before important exams. Read over your notes. If you get homework on areas that you are...
  7. study-freak

    minimal study and pulling out with a mid 90?

    hey, it's not that terrible lol It's not that thorough but it's alright for beginners
  8. study-freak

    Confused

    Recommended: Good to have, but not necessary Assumed: You are assumed to have this knowledge but you can still get into your course without having it. Edit: +1 to what the-derivative said
  9. study-freak

    Who here has gotten 99+ without accelerating?

    I achieved 99.95 without any acceleration (not even 2u).
  10. study-freak

    Is it possible for me to get...

    My school was ranked 280th this year. No need for more words lol
  11. study-freak

    Proof that School Certificate Results don't correspond to HSC

    My SC: English - literacy 76 Mathematics 98 Science 89 Australian Geography, Civics and Citizenship 95 Australian History, Civics and Citizenship 83 My HSC: ESL 93 Physics 97 Chemistry 97 MX1 98 MX2 97
  12. study-freak

    Polynomial Roots

    I knew that I needed a^3+b^3+c^3 and so I tried to find it and while doing so, I realised that I don't even need to find the value of a^3+b^3+c^3 because I could eliminate it together with 3(a^2+b^2+c^2).
  13. study-freak

    Polynomial Roots

    \\a+b+c=-3 \\$Sub a, b, c into the polynomial$ \\a^3+3a^2-2a+1=0 \\b^3+3b^2-2b+1=0 \\c^3+3c^2-2c+1=0 \\$Add \\(a^3+b^3+c^3)+3(a^2+b^2+c^2)-2(a+b+c)+3=0 \\ \\a^2(b+c) + b^2(a+c) + c^2(a+b) \\=a^2(-3-a)+b^2(-3-b)+c^2(-3-c) \\=-3(a^2+b^2+c^2)-(a^3+b^3+c^3) \\=-2(a+b+c)+3 \\=6+3 \\=9
  14. study-freak

    Equilibrium questions

    I'd guess it doesn't affect in this case.
  15. study-freak

    Equilibrium questions

    Well, you cannot concentrate water, can you? Its density won't change even if you add more. Edit: take it this way. When you add more water, you are not sqeezing water into a small volume but added water occupies larger volume. So concentration won't increase.
  16. study-freak

    Equilibrium questions

    If you add water, the concentration of water remains the same (although its amount increases) and that of all other species drops in equal ratio. Hence adding water does not favour the formation of HOCl.
  17. study-freak

    Yr 11 Electives Advice please....

    Who do you think you are? Some people need 99+ to get into their undergraduate courses. If you are saying that there are alternative ways to study degrees through e.g. graduate stream, that's fine if YOU are the one who wants to do it. This is about others' lives and you are not in the place to...
  18. study-freak

    Yr 11 Electives Advice please....

    That's only Georgia Stenning and your opinion. It's ridiculous that you're instructing OP to do what you would have done. Many people find Chemistry interesting. Just because you don't, it doesn't mean that everyone in this world finds it uninteresting.
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