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  1. Arrowshaft

    HSC Chemistry Exam Solutions / Thoughts

    Okay thanks, and also for the final q will I lose a mark for not restating the equations? Because I ran out of space, but i described rhe by products and reagents
  2. Arrowshaft

    HSC Chemistry Exam Solutions / Thoughts

    Okay, I justified it by referring to electronegativites and showing that it has a greater tendency to form temporary dipoles from Van der Waals forces rather than permanent dipoles, is that good enough?
  3. Arrowshaft

    HSC Chemistry Exam Solutions / Thoughts

    oh no i thought that thiols were non polar due to the weak electronegativity between the S-H bond!
  4. Arrowshaft

    HSC Chemistry Exam Solutions / Thoughts

    What if I forgot to say the colour change but said the after adding sodium carbonate powder there were bubbles that formed. I can’t believe it either, I was so cooked during the exam.. smh
  5. Arrowshaft

    HSC Chemistry Exam Solutions / Thoughts

    Also, did we have to rewrite the structural equations? Because they already provided it. And there was limited space
  6. Arrowshaft

    Davisson germer experiment

    Ah yes Bragg’s equation, just as a side note; I’d also mention the significance of the 54V potential difference and the contribution of G.P. Thomson. Very comprehensive response though!
  7. Arrowshaft

    Physics Exam 2019 Questions Thread

    Alright here’s the next question: Explain the effectiveness of the Morgan-Keenan system in stellar classification. (4 marks)
  8. Arrowshaft

    Physics Predictions/Thoughts

    Nice response however, seeing it is a nine marker i also wouldve mentioned the magnetisation of the iron core due to the rapid change in magnetic flux causing energy to be lost - prevention: use new materials which are resistive to the de- and re-magnetisation of the core. Also, I noticed you...
  9. Arrowshaft

    Physics Exam 2019 Questions Thread

    Imagine NESA employees read this and next year advanced mechanics becomes euler langrange and hamiltonian mechanics
  10. Arrowshaft

    Physics Exam 2019 Questions Thread

    I gave up on NESA the moment the moment they used suvat smh... Simple integration: am I a joke to you?
  11. Arrowshaft

    ARC NESA Band 5/6 Responses

    On the ARC nesa site, do the band 5/6 responses usually represent the upper ends of the band 5 responses and band 6 responses or is it just generally mixed? I ask this because I want to find and analyse just pure band 6 responses, not exposed to the possibility of a response being at a band 6...
  12. Arrowshaft

    Physics Exam 2019 Questions Thread

    Oh damn, I didn’t even know what a perigee and apogee was haha 😂. I was thinking of discussing Holman transfer orbits as well, but thought that’s more old syllabus and wouldn’t be necessary.
  13. Arrowshaft

    Physics Predictions/Thoughts

    Hahaah i legit lol’d when I see them using pythagoras hahaha
  14. Arrowshaft

    Physics Exam 2019 Questions Thread

    May have gone a bit extra lol
  15. Arrowshaft

    Physics Exam 2019 Questions Thread

    It’s trash tho 😝 just a buncha non-calculus waffle
  16. Arrowshaft

    Physics Exam 2019 Questions Thread

    How much would you give that? Sorry, couldn't be bothered to check over it lol, just whipped it out. Its also a bit clunky and unorthodox cause I didn't plan it out :p
  17. Arrowshaft

    Physics Exam 2019 Questions Thread

    Ooh that’s a good question, I'm going to prepare a somewhat actual answer for this. The Orbits of Satellites such as GPS must be known very precisely. With reference to the total energy of a satellite and Kepler's Laws, discuss how satellites' orbits can be predicted and maintained. The orbits...
  18. Arrowshaft

    Post-HSC goals?

    Minecraft. Also wanna learn C or python
  19. Arrowshaft

    queries about physics NESA additional sample questions

    Well as you said, for an ideal transformer \dfrac{I_s}{I_p}=\dfrac{N_p}{N_s} Hence, I_s=I_p\dfrac{N_p}{N_s} Now, for the galvanometer to deflect the most, the current produced has to be the highest, this only happens when I_s is big, so either when N_p is increased or N_s is decreased. Hence the...
  20. Arrowshaft

    Physics Predictions/Thoughts

    Exactly! Independent markers must’ve been high
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