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every atom in a conductor contributes valence electrons for conduction (abt 10^22 electrons per cubic cm of the conductor) semiconductors have about 10^15 electrons per cubic centremetre available for conduction Doped, n-type semiconductors have abt 100 times more electrons than pure...

well basically,when a charge moves (i.e. current) through a magnetic field, its movement gives rise to a second magnetic field which interacts with the original one. this interaction results in a force experienced by the charged particle.

reshards of glass

hey quoted solution by cyl123 from: http://community.boredofstudies.org/14/mathematics-extension-2/201896/conics-half-yearly-past-paper-questions.html sorry thats only for question 2. ill try and do question 1 for u if i can!! :P

kartik plz check ur email :)

wtf. im retarded. thanks guys!

oohhhh these ones: thanks affinity. but nope i still dont see whats going on from middle to RHS :confused: suck at trig.

this is in the cambridge 4 unit textbook on pg 89 under the subheading 'ellipse'. i dont understand how they got from LHS to middle, and then from middle to RHS. im really weak in trig and dont understand how they did anything in this step. :confused:

i think ud get more ppl filling this out in the VCE section of this site :)

i think that the humour in the cartoon is how the guy nonchalantly says "I hope you didn't have too much trouble getting here" which is humorous because of the long trail of footsteps in the snow behind them which lead up to a boat, is quite at odds with the lightweightedness of his comment? Or...

ty very much

LOL yeahhh i dont understand the whole concept of scaling...any1 care 2 explain? or gimme a link ? :D

Re: Need study notes on Gough Whitlam Woah Thankyou So Much Zephyrio

i would choose info tech over bio im not sure if u can argue this but u can combine info tech with physics.... so that would be MY logical choice....its up 2 u in the end

3U Maths 3U Eng (adv) 2U eco 2U business studies 2U Physics career: anythin in finance hopefully

This is incorrect. (x+3)^2 - x^2 = (Other side)^2 x^2 + 6x + 9 - x^2 = (Other side)^2 -------------- because (a+b)^2 = a^2 + 2ab + b^2 6x + 9 = (Other side)^2 Excellent attempt though, good job.

I understand everything in your post except for the bold part in your quote. Is that a typo? Because 5a³/b would be of degree 3 right? Since 5 is of degree 1 and 'a' is of degree 3, which we add makes degree 4; 'b' has a degree 1, which we then subtract from 4 to make an answer which...

Oh lol woops...OK thanks I shall have a look.

I don't understand how you incorporated 'x' into the expression. I think I understand the part where you say that if f(x) = 0 then (c - x) is a factor (because (c - x) = c, right?). If my previous statement is correct, then I do not understand how x has to be some expression which involves a...

Sorry AMorris but I'm only in Year 10, and as such don't have any clue as to what modular arithmetic is. Is there any other way to do this?