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thanx bored.of.u....i get it now....the way i did it was messed up lol...i didnt even use the densities...thanx :)

can someone show me how to do this question...im confused by the density bit... A 250 mL sample of Polk shaving cream wasw analysed and found to contain the following active ingredients: Liquid A - 2.4g Liquid B - 0.5g the following information on these two active ingredients is also...

lol...i noe someone hus done that as welll this year..his BOS account is Bored.of.U , he finishd maths and finishd chem course for prelims THIS holiday and is halfway through bio and physics o.O

dude i posted another way to solve it...i think thats the way talent 100 wants us to solve it

doing most of the questions from cambridge 3U prelims has helped me do better in maths....and if i dont understand anything ijust ask my tutour :) however if u dont hav a tutor u can use maths in focus in combo with cambridge so that u understand and u can do questions which challenge u and...

oh wait forgot its from trough to crest so u just half it and yea

i think there's another way....not sure if its rite though 6 waves in 3.6 seconds so let T= period 6T= 3.6 T= 3.6/6 = 0.6 and T= 1/F (F= frequency) so F = 1/0.6= 1.67 Hz (2 dec.) now V=wavelength * Frequency and we noe V= 42.3 m/s and F= 1.67 Hz so 42.3 = wavelength * 1.67Hz so...

oh soz...i was ansering rong question lol....guess u solved it already xDD

dude for the last question on the physics paper....i think its just the stuff 'bout oscoliscopes or thingos which u use to view/study waves. just regurgitate it :P

lol where there is a will theres a way xD

wow caringbah high must have really smart ppl...

can we pls stop talking bout this ? its disturbing lol

*shivers* ..... shes an indian girl with freckles hu tries to copy the aboriginal students at our school ... the ones that dont really care bout education.

lol wat do i think about skinny chicks? if theyr like anorexic i think its disgusting...i like NORMAL ppl ... not obese not anorexiz but NORMAL xD

i like rhaki? umm hus the one that started telling everyone in class wat a nice ass she had o.O lol sif u can blackmail me with it....spaz reaction ... after u see rhaki ... who wudnt? >< scarred for life man .... soz for off topicness yet again

also in the SC maths exam u shud consider doing the non-multiple choice questions first becuz ull be fresh and less likely to make mistakes and since they are usually awarded 2> marks it will be good if u make no silly mistakes in them (which i noe i did) xD and after u finish the multiple...

Re: Recommended Texbooks/Study Guides for Preliminary HSC? hmm the problem wen i write notes is that i end up writing everything somehow...and wats the point in referring back to it later if u can just refer back to the text book?? lol in summary i suck at writing notes :mad1:

if u put it that way....sounds like a good idea :drink:

physics and chem are inverses :haha:

wat do u actually do? is it like a test or what? i have to do it at my new school on orientation day >< . i have to stay behind for extra 1 and half hours .