Search results

this is from the 2003 HSC Paper Q4: (a) A particle P of mass m moves with constant angular velocity ω on a circle of radius r. Its position at time t is given by: x = r cos θ y = r sin θ, where θ= ωt. (i) Show that there is an inward radial force of magnitude mr ω2 acting on P. i got as far as...

okay well i hate english, with a passion and im going to do shit at it. i was just wondering what is the lowest mark you know someone has gotten in english while still getting a uai of over 90? im currently at a selective school,, its not that great, were like low 30's apparently, i do ext2...

it's a simple trig integral, im not getting the right answer and i cant find a problem in my working :< can someone please do this with working and post it up thanks for ya help http://img523.imageshack.us/img523/9528/integralig6.jpg

Why do we always add a base to an acid when doing titrations? im fairly sure my teacher mentioned this and he explained it, i just cant for the life of me remember what he said. i asked a class mate and he's telling me that its because the glass flask is made of silicon oxide which is acidic, if...

Show that (1 + cosθ + isinθ)n = 2n.cosnθ.[cos(nθ/2) + isin(nθ/2)] where n is a positive integer.

straight from cambridge P74 Q12: show that the roots of z^6 + z^3 + 1 = 0 are among the roots of z^9 -1 = 0. hence find the roots of z^6 + z^3 + 1 = 0 in modulus/argument form.

Hey, i just wanted a bit of information about electrical engineering. I was wondering about what kind of fields these people get employed in, like what exactly does their work invovle? Also, how good are their pay packets and is their room for this too increase without necesarily going into...

I cant seem to get this one out: P(2ap,ap2) & Q(2aq,aq2) lie on the parabola x2 = 4ay, where a > 0. The chord PQ passes through the focus. Show that the chord PQ has length A(p + 1/p)2 thanks for your help

when i was writing up my notes, i ran into quite a stump in trying to explain what apparent weight was. Like i know that mathematically it is ma + mg and i get the mg part being the weight factor but i dont get the ma part. I think i kind of understand it and what im thinking is that its the...

just wondering if anybody is doing 10 units / 4 subjects next year?

had no idea so i just guessed. i said a communication protocol is a set of rules that govers how 2 computers communicate with eachother. An examples is HTTP. The protocol outlines how two computers are to communicate and how a web page is to be delivered. i know i got it wrong, was taking...