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How many decimal points and significant figures should we round off our answers to? i use the whole calculation (store on calculator) and when i check answers mine are lik a bit off cause they round off .... :S

Shipwrecks for life :) Galvanic cells :) Its pretty simple.. except 1 or 2 chapters.

100%

lolz

ok um. i dont really get this.....is this right? at normal temperatures. a superconducotr will NOT allow a magnetic field to penetrate it..... at temperatures below critical temperature.. electron pairs move to create a current loop preventing changing magnetic flux. this causes currents in the...

omg.. no way.... lol... you heard of a school formerly called Noor Al Houda Islamic College (caravan park :P) ?

thanks, btw what school you go to?

I have conflicting pieces of information about membrane filters... Is Flow rate in membrane filters fast or slow?

mmhmm....... yes. ok...

Example) if i get a 95. and the rest of my class in the subject get lik 30's and 20's will my 95 get pulled down?????

my rank for ext maths is first. we only got 2 people in the class for extension though.................. but still i was hoping for a 48.5 or 49 outa 50 :( first assesment i got 100 second assesment 98 and the trials i got lik 86% ... stupid mistakes... argh...

in year 11.... my friend was getting high 70's for and low 90's for 3unit maths.... now thats WEIRD !

er i still dont really get it :S my school is some school in strathfield... not really high performing school..... :S so my 46.5/50 isnt really 46.5/50 ? :S:S

1) Outline 2 peices of experimental evidence that the wave model could not explain (this is to do with light being photons) 2) Describe an investigation you could carry out to demonstrate that the motion of a projectile can be analysed by seperating the motion into independent horizontal...

i duno. i just calculated what my final mark will be..... like from all my assesments..... how you get ur scaled mark? :S

yer thanks

silicon?

The concentration of Sulfur Dioxide in a gas stream is analysed by passing the gas through NaOH solution. (Question continues... calculating moles blah blah) I cant seem to get the equation to start the question SO2 + NaOH -> H20 +Na2S thats what i think it is... its a neutrilisation react...

lol "Sucess by wrxsti HSC Course" i heard its really good :)

mine is 46.5 /50 hoping it gets rounded up :S