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  1. H

    motion question

    Here, re-typed a = \frac{dv}{dt} = \frac{dv}{dx} \cdot \frac{dx}{dt} = v\cdot \frac{dv}{dx}= \frac{d\left ( \frac{1}{2}v^2 \right )}{dv} \cdot \frac{dv}{dx} = \frac{d\left ( \frac{1}{2}v^2 \right )}{dx}
  2. H

    Quick question about UNSWTV

    Can you download videos from there? THanks
  3. H

    Chemistry Problem

    Jacaranda chemistry textbook
  4. H

    Chemistry Problem

    Bottom right question requires rote memorisation of precipitation rules and flame test colours -Brick-red flame means calcium -White precipitate with F ions means there are calcium ions -Yellow precip with lead means there are iodide ions Hence answer is D NO UNDERSTANDING REQUIRED FOR THIS...
  5. H

    99.65 Atar | Business & Economics | $25/lesson | First lesson free!

    Bump! Those who are in need of Business/Economics private tuition, here is the place. Vivian a really nice, smart and patient person! You won't regret it! Come on, look at the rates... pretty cheap for private tutoring (oh btw, I've known Vivian for a long time. Trust me, she will give you all...
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    Any good SIM plans out there

    Do you use credit for pleasure? If not, get the vodafone $30 per year
  7. H

    Indicators for Titrations

    here are the pH ranges Phenolph...: 8.3 -10 Methyl Orange: 3.1 - 4.4 Bromothymol: 6 - 7.6 For strong acid and strong base, the solution will become neutral (pH = 7) so bromothymol and phenols is best For strong acid and weak base, the solution will come acidic (pH <7) so methyls is the...
  8. H

    naughty naughty

    naughty naughty
  9. H

    Yo wojno bro

    Yo wojno bro
  10. H

    Integration Question

    As x approaches 0 from the positive end, y approached infinity. Since we cannot sub in 0 directly, you just sub in a very small number like 0.01 y = 1/(0.01)^2 = 1/[1/100]^2 = 100^2 = very big \lim_{x\rightarrow 0^+} \frac{1}{x^2} = \infty As x approaches infinity, y would get really small...
  11. H

    Where is RC4113?

    OK, thank you confirming :)
  12. H

    Where is RC4113?

    All I know about it is Red Centre.. Is the room number actually called RC4113? OR does it mean: level 4, room number 113? Thanks for any help!
  13. H

    Simple trig?

    I realized that when you solve the quadratic, you end up with tanx = 1 + root2 lol
  14. H

    Simple trig?

    x = arctan(sqrt(2) - 1) = very hard The problem is that disgusting square root of 2.. I have an idea, let's eliminate that square root by first isolating it and then squaring both sides! (root2) = tanx + 1 (isolate root2) 2 = (tanx)^2 + 2tanx + 1 (squaring both sides) (tanx)^2 +...
  15. H

    MATH1141 question (general)

    Thank you MiseryParade! Time to read and print out the notes :D
  16. H

    MATH1141 question (general)

    A/Prof.Doust's Notes (Tu 10 and Th 9) Prof.Schief's Notes (Tu 17 and We 16) What does Tu 10 and Th 9 mean? (tuesday 10 and thursday 9? the heck..) "Bring the notes for your lecturer to class! Note that some timetables may not have the correct lecturer listed for your lecture times. The...
  17. H

    Travel and Concession questions

    If I do not own a concession card and my friend buys me a concession mymulti2 ticket, can I get into a lot of trouble?
  18. H

    UNSW O Week 2014 chat thread

    Farout man..some of my friends also got Riot blitz and the worst thing of not going yesterday was that I missed the 1v1s but O-week was awesome, sweated so much though...lol
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