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  1. J

    Physics predictions?

    For the rocket question where we had to find the mass of a planet using conservation of energy, do we equate the change in kinetic energy with the change in gravitational potential energy? so 1/2mv^2 = GMm/r (m= mass of rocket, M= mass of planet)
  2. J

    Physics predictions?

    Also for the last question about testing whether the hypothesis was true, you had to say that the gravitational force of attraction was insignificant to account for the centripetal force since it was too small, right? By comparing GMm/r^2 and mv^2/r
  3. J

    Physics predictions?

    will 90 raw mark be scaled down?
  4. J

    Physics predictions?

    "Derive Maxwell's equations of electromagnetic wave propagation using triple integral techniques“ (5 marks)
  5. J

    Physics predictions?

    Hopefully it's not as hard as 3u or 4u
  6. J

    Mathematics Extension 1 HSC thoughts

    there's no way wtf, what's the point of getting 90 raw mark then
  7. J

    Can 65% raw mark for ext 1 math this year scale to e4?

    Please I really need to get in my course 😭😭
  8. J

    Mathematics Extension 1 HSC thoughts

    guys was this the answer to 14)a)?
  9. J

    Mathematics Extension 1 HSC thoughts

    But how come there's horizontal asymptotes when y can be any value?
  10. J

    Mathematics Extension 1 HSC thoughts

    Maybe I'm wrong, but didn't B and C have horizontal asymptotes, so it couldn't be the answer? Because since y can have any value, and also sin(y) ranges from -1 to 1, so dy/dx has to range from 0 to 2
  11. J

    Mathematics Extension 1 HSC thoughts

    Oh I got D for that one
  12. J

    Mathematics Extension 1 HSC thoughts

    Wait what was the question again
  13. J

    Mathematics Extension 1 HSC thoughts

    But honestly tho those last few questions were pretty hard
  14. J

    What do you guys think of the Ext 2 Math scaling this year? Would it be better than previous years?

    That hard af test got me contemplating my life choices. Or am I just bad lmao
  15. J

    Can i get 90+ atar with these results?

    Thanks for the insight, I was wondering if I can sort of neglect English, and be content that I can get at least band 3 in it, given that I ace my other subjects? I am pretty confident that if I devote most of my time to my other subjects, I can get band 6s for 3U and 4U and Chinese. But then...
  16. J

    Can i get 90+ atar with these results?

    For my school in 2021, the number of band 6s were: English Advanced: 9 Maths ext 2: 8 Maths ext 1: 16 Physics: 4 Chinese continuers: 4
  17. J

    Can i get 90+ atar with these results?

    My school is ranked around 200th in NSW My internal ranks are: English advanced: 26/47 Mathematics Extension 1: 1/30 Mathematics Extension 2: 4/7 Physics: 3/30 Chinese Continuers: 1/8 My English really is just average (below average probably), I got a raw mark of 70/100 for trials For trials...
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