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GPE = Work - Kinetic energy Can someone verify if this formula is true for a satellite put into orbit, if so, how is this derived?

Tbh, I think you only started answering the question from this part onwards. Preface is unnecessary I made edits rofl, soz

Whats up peeeps, my name's Alejandro Traore, I aspire to change the future, to explore the world and become :D

Salt content is high. Soz astro

Dang son, that's pretty deep from a Y11 student.

You're NOT going to need the whole 3 hours. It's set up to be done in 2 and a half hours with half an hour of checking (For pretty much all maths and sciences).

African Australian Just curious, why is Indian an ethnicity, isn't it a part of Asia lol

Shiee: https://www.google.com.au/webhp?sourceid=chrome-instant&ion=1&espv=2&es_th=1&ie=UTF-8#q=solvay+congress+1927

Re: MX2 2015 Integration Marathon lol, i always try it first whenever i see a definite integral soz boss

Re: MX2 2015 Integration Marathon lol, "let's see" used f(a-x), then let cosa be any constant, used t formula and standard arctan integral

Re: MX2 2015 Integration Marathon Hmm not sure if I was supposed to use something like F(a-x) I just multiplied by sec^2x/sec^2x and used u=tanx. Then standard arctan integral

re: HSC Physics Marathon Archive Uhh I won't post it as I'm not sure how lol, but if you look through the HSC papers you can find it in the MC section Unfortunately, no worked solutions to the MC :(

re: HSC Physics Marathon Archive I'm getting owned by those really tricky (imo) Lenz's law questions in the MC section, anyone got some tips or can help me out with my stash of Qs? :D

Yup, but I think I'm plateauing and on a decline since I now rush the entire paper, and often fail those 'tricky' (wording) questions. Should I take a break, or is the grind still optimal?

What's after papers? I can't seem to find any NEW questions :O

Hands down perms and combs

re: HSC Chemistry Marathon Archive Plz correct me

Yes, you need to know the exact process and products yielded. Be sure to throw in the name of the catalyst too

re: HSC Chemistry Marathon Archive Where'd you get this equation? Here's my take on it: Firstly, H2CO3 is not in it of itself an intact compound, it's a theoretical substance used to describe the dissolution of CO2 in water Thus, it is simply CO2+H20 <-> H2CO3 <-> H+ + HCO3- So additional H+...

Re: HSC 2015 4U Marathon To the best of 4U knowledge, you can rotate around oblique lines (e.g. y=x) Use y=1/x and set yourself up with a couple of boundaries and try rotating around y=x