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current is a dependent variable =P lol. it was a stupid prac and one i made up on the spot.. so yeh =P i don't even know if i can get away with that cro use. prolli shoulnd't have tried to be smart and gone for an ammeter like everyone else.. but yeah.. serves me right. i said that the...

hehe.. i put in a hand-cranked generator and a cathode ray oscilloscope.. but yes.. i just stuck more bar magnets together with rubber bands... =) lol.. as if that'd happen in a real school.. (what sort of school would let kids play freely with rubber bands and bar magnets? crazy.)

me spam? no~ (*shocked expression*) all my posts are meaningful and designed to each be taken a work of... i'm going nowhere with this =) yeah sorry bout that.. i was jus reading back on the previous posts.. and i don't know how to edit and quote at the same time.. the onlything i know...

yeah.. okay.. what i'm saying is.. even if there were eddy currents in the first solenoid.. there isnt a net current thru the wire coil of the solenoid.. so you don't get the magnetic flux that repels the magnet. hmm... am i being too obscure... ahh well~~~ it's history =) let's all take a...

how do u have a current if there's nowhere for the current to go?!?!!? a current is the flow of electrons. i = dq/dt. okay so there may be eddy currents.. but they mean nothing in a solenoid question... (??) lol.. am i gonna get owned sometime soon?

in the first one.. there's no force.. because there's no current induced... you have to have a closed circuit to induce a current. it's like when u crank a generator with teh switch open and the swtich closed.. it's harder with it closed..c uz the current can flow.. yeah?

i'm pretty sure they were stationary... the question was like... they're allowed to move in penduluum motion... did u talk about the pendulum bt? cuz all i said was the second one gets pushed to the left.. i never said it came back down again.... (?)

chill.. chill....~~~~ it's over.. :) it's pretty much textbook material... he stuck capacitor plates and coils (electromagnets) around a cathode ray tube, so the forces they produced on the rays directly opposed each other. he varied the fields (the electirc and magnetic) til the rays...

hehe... h a v e f u n .... ppl actually start studying, and u do need to get a work ethic, but don't burn urself out b4 actual exams (and believe me, term 4 assessments aren't real 'actual' exams... they count like... 5%.. so don't sweat it). but get out and have fun in the holidays and...

booo.... =) hey.. i'm doing hsc and i'm still here... *shame* hehe..

*rolls eyes* mercury.. CHOOSE UR ALLIES NOW... will it be ruse or sg>?!? hehehehe..... demountables are faaaannnntastic. i spent five years doing ag in those demountables.... leaky roofs... muddy carpet... gosh could it get any better.

it was surprisingly.. (and perhaps disappointingly) easy. Basic, straightforward, straight out of what we knew. =P not even a mass defect question.

shoot shoot shoot shoot shoot shoot shoot shoot shoot..... *arghhhhh*.... exam stress..... things... are... not... happening....

the point of textbooks is that they do have a lot of info, some which u won't necessarily need. It's basically up to you to read it, then pick out the important bits and do up ur own notes.

Goddard 1912 - developed mathematical theory of rocket propusion 1915 - proved, using a static test, that rockets could produce thrust in a vacuum (and hence space flight in a vacuum was possible). Ideas rejected by the public for being too radical. 1926 - constructed, tested first liquid...

linear.. and the round one.. bleh.. i should study =P

mm.. an obscure answer for an obscure dp? rotor & stator. if pushed i'd mention both.

um.. are u thinking of Type 1 and Type II superconductors? Type 1 are pure metal/alloy superconductors Type 2 are ceramic superconductors.

hehe.. someone should write a conq phys tho... except u need like. a p-word.. phantastic physics??? (yeah its sad..shut up.. u try thinking of a better one =)

the hsc success ones are hard =P i doubt all the hsc ones will be like that.. but some of them aren't too bad. (the short answer ones are pretty dodgy tho) and no.. conq chem is a roland smith exclusive.