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  1. Arrowshaft

    Physics Predictions/Thoughts

    That still sounds fun. Vector calc is still fun, the integration problems by applying Stokes' and Greens' theorem is pretty cool and the idea of contour integrals and stuff. The stuff you do in physics I still find pretty neat regardless from what I’ve taught myself, especially Fourier...
  2. Arrowshaft

    Physics Predictions/Thoughts

    Does 4u mech relatively prepare you for phys? Cos thats one of my fave topics and I’ll love uni phys if it has a lot more calc and fun integrations.
  3. Arrowshaft

    Physics Predictions/Thoughts

    Bruh, my dude be fuming 😂. I agree with what you said, but you also have to remember a lot of people that do this course don’t do high level maths and are just looking for a BASIC understanding of physics. In that sense I feel they improved, by applying it to more real life scenarios and giving...
  4. Arrowshaft

    Physics Predictions/Thoughts

    P = I/4pi r^2
  5. Arrowshaft

    Interesting mathematical statements

    a^2+b^2=\frac{E}{m} for fast enough a and b.
  6. Arrowshaft

    Euler's Theorem

    ok boomer. jk I agree
  7. Arrowshaft

    Euler's Theorem

    I don’t remember it exactly as I haven’t covered complex analysis yet, but he’s fairly credible, I may just be recalling it bad
  8. Arrowshaft

    Euler's Theorem

    Dude I was so lucky for 4u as I had a teacher who loved 3b1b and literally made identical presentations as him, albeit he didn’t use python (tho you can access his code from his resources!).
  9. Arrowshaft

    Euler's Theorem

    I’ve also seen it derived by my physics teacher (can’t remember exactly how) but by using a differential operator on e^ix, i dont remember the exact details but this was when he was teaching us about the fourier series for intro to quantum mech
  10. Arrowshaft

    Euler's Theorem

    My teacher actually explained this by redefining the concept of addition and multiplication in the complex plane through a process known as ‘sliding’ for addition and ‘stretching’ for multiplication. By defining it as such, you can think of z^2 as purely addition of the arguments
  11. Arrowshaft

    Euler's Theorem

    No one should be required to prove De Moivre’s theorem algebraically, its just a mathematical description for the ‘stretching’ of the modulus and the rotation of complex numbers. My 4u teacher hated De Moivre’s theorem as it stripped the intuition brought by visualizing rotations.
  12. Arrowshaft

    Physics Predictions/Thoughts

    Like something times 10^-12
  13. Arrowshaft

    Physics Predictions/Thoughts

    Simply subtract binding energy from kinetic energy of pollonium.
  14. Arrowshaft

    Physics Predictions/Thoughts

    Which questions caused this hemorrhage you speak of
  15. Arrowshaft

    Physics Predictions/Thoughts

    how'd you find the paper @nasr7601?
  16. Arrowshaft

    Physics Predictions/Thoughts

    Yeah, the thing is that was my favourite topic in physics and it sucks that I wasn’t able to convey my ideas to the markers. If I’m only losing 2-3 I’m happy with that, as long as I don’t lose more than 4-5 I’m good. Did end up filling the spaces though, so I guess I crammed as much as possible in
  17. Arrowshaft

    Physics Predictions/Thoughts

    Poor exam technique 😔
  18. Arrowshaft

    Physics Predictions/Thoughts

    I just didn’t have enough time to write all that stuff down. What I ended up mentioning was: - blackbody cavity and shape of graph. - proton proton chain and CNO cycle releasing energy through nuclear fusion. Described the net equation for the proton proton chain with positrons, gamma rays and...
  19. Arrowshaft

    Physics Predictions/Thoughts

    Yeah, I don’t know tbh. They could penalise you or not dependent on the marker but I doubt it
  20. Arrowshaft

    Physics Predictions/Thoughts

    Seems good, but just a correction; though equipartioning theorem was developed by Rayleigh Jean using classical thermodynamics, Planck didn’t dismiss it, in fact all he did was limit the shortest possible wavelength of the standing waves being able to be emitted and received by the walls of the...
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