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  1. S

    how many female unsw engo scholarships are given out

    also are they legit strict abt the 93 atar or nah (just wondering)
  2. S

    king henry iv part 1

    anyone selling their essays? mod c
  3. S

    atar estimate pls (hypothetical)

    eng adv : 16 B6 3U: 45 B6 4U: 20 B6 Chem: 18 B6 Bio: 26 B6 Phys: 11 B6
  4. S

    atar estimate pls (hypothetical)

    lol thanks :) school rank : 30 ish eng adv: 20/140 3u maths : 60/120 4u maths: 30/63 physics: 35/77 bio: 10/82 chem: 50/116
  5. S

    is emf same as induced current

    ahh that makes so much sense now!! THANK YOU!! :)
  6. S

    is emf same as induced current

    so I know that changing flux according to faradays law produces an EMF. And eddy currents arise from changing flux. So do eddy currents induce because of faradays law or nah?
  7. S

    direction of induced current

    ah makes sense!! so eddy currents are just for closed loops right?
  8. S

    direction of induced current

    so if the question asks for direction of induced current, do we always think of Lenz's law? so we always answer that its clockwise/anti since there will be an eddy current how would I do the attached one? do I use right hand palm rule and oppose the force or grip rule?
  9. S

    ampiphrotic substance

    oh my god thank you so much!!!!! :)
  10. S

    ampiphrotic substance

    so to prove that aluminium oxide is ampiphrotic, I want to show it by equations but which ones do I use? can you show how I can use the fact that water is amphiprotic, to demonstrate this? thanks!
  11. S

    help with dissociating

    so apparently for sulphuric acid it dissociates two times and first its: H2SO4 + H2O → H3O+ + HSO4- HSO4- + H2O ↔ H3O+ + SO4 2- but the equilibrium is to the left. and the overall reaction is:H2SO4 + 2H2O → HSO4- + 2H3O+ + SO4 2- how do they get this overall reaction?? thank you <3
  12. S

    induced current

    how do I figure these out using right hand rule (or do I use right hand grip rule??) thank you
  13. S

    graphing le chateliers

    Thank you both!!! <3
  14. S

    graphing le chateliers

    so if we have the equation of ammonia synthesis: N2 + 3H2--> 2NH3 and the volume of the reaction vessel is halved 10 seconds after the reactants are first mixed. Skeych a graph of Nitrogen and Hydrogen concentration vs time Start the graph at the time when the reactants are first added and...
  15. S

    circle geo

    Two circles of radii 3cm and 4cm have their centres 5cm apart. Calculate the area common to both circles correct to 2 decimal places. we use minor segments but I'm not getting the answer 6.64cm squared
  16. S

    cos inverse of -0.28

    ah thank you!!
  17. S

    cos inverse of -0.28

    is it the same as cos inverse 0.28? how does the minus sign affect things and how can I visualise this using quadrants and stuff thank you
  18. S

    complex numbrs

    show that z^5-1/ z-1 = z^4 +z^3 +z^2 +z+1 also show that z^5-1/z-1= (z^2-2zcos2pi/5+1)(z^2-2zcos4pi/5+1)
  19. S

    integrals and area

    need help with these pls integrate bewtween y=|x^2 -3x +2| and the x axis, between x=0 and x=3 area between x^2=4y and y^2=4x (confused about if we should integrate y or x) area between y=-x^2+4x-3, y axis and the lines x=4 and y=4
  20. S

    integrals and area

    whats the area between: y=underroot(2x), y axis and the line y=4 ans:32/3 and area between x^2=4ay and its latus rectum
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