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Well DC motors work by making sure there is a constant change in flux threading the rotating coils. Because the polarity of the coils is changed every halfturn, the forces on the respective sides of the coil are kept in the same sort of direction. In AC motors however, there is already a...

What has giving off energy to the nearby "molecular lattice" got to do with the measure of MR and how and what the hell is it :S i have a headache. Isnt MRI the detection of the energy givin off by the neucleons when they relax? So why do we need to know where the energy goes? And also, if the...

Thanks for clearing that up ashtor :D

Your ANUS... dont forget, life is given as a trust. And it costs 18c per hour to run a television. :D

aAs the temperature became hotter, the walls of the cavity absorbed many packets of energy and released them as one bigger bundle of energy with a higher frequency. hence, the intensity of those bundles decreased as the frequency increased. That is, a smaller number of protons have larger...

Has this scientist thing EVER come in any of the past years papers? Unless theres a direct dotpoint in the core or option like in chemistry, i dont think it has ever been asked anywhere.

haha y do d english exam uh eazy? just jig it :D

Eh, there isnt a specific dotpoint for it is there? haha yeah kheir hope they ask details about PET or x-rays and theres a 8 mark effects on society question! :D

HaHa yeah that would be great considering we are sitting it tomorrow, either that or the neap paper/

So what'd every1 end up getting? i Got 78/120 .. came 2nd.. top mark in our school was 91/120 (S00p3r Fr34k)..

SO WHAT IF I AM GAY? DO U HAVE A PROBLEM WITH THAT? Gay people are still people, they shouldnt be discriminated against. We must not lament that they don't fit into the boxes of "male" and "female," and therefore "homosexual" and "heterosexual," too. Those boxes weren't made for them. They don't...

Do any of you girls do cheerleading? or is dance just a school thing? other than ballet and stuff..... coz i was looking for some inspiration for my krew.. we need some new moves

Its nearing the end of the high school year and he's replacing the option? havent you's finished the course?? and that shortcomings question was a perfect syllabus point, which i forgot to revise, and so is the edison/westinghouse question.. wonder why/how you havent come across it :S

Wo0ah Za!! well done on such a great mark.. u must b such and admirable character.. maybe i should sit next to you more in class... i only got 87.. pretty goood considering i didnt study! :D anyway, ill congratulate you in person when i see you next babe ;) Have Fun Dude!!

Prove: 5.5^k - 4.4^k - 3.3^k > 0 3.5^k + 2.5^k - 3.4^k - 1.4^k - 3.3^k > 0 3(5^k - 4^k - 3^k) + 2.5^k - 1.4^k > 0 ( > 0 ) (5^k is always > 4^k for the given domain, hence, 2.5^k > 4^k, and therefore, 2.5^k - 4^k > 0 ) :karate:

Sqrt[1] = Sqrt[-1 * -1] 1 = Sqrt[-1] * Sqrt[-1] 1 = i * i -1 = 1 2 = 0 1 = 0 OK I have a few questions about this FIRSTLY .. are you implying that maths is WRONG?? SECONDLY... 1 = Sqrt[-1] * Sqrt[-1] (from above) heres where i think youre wrong... we know that i*i = -1...

What is a man of your brilliance doing in Yr 12 if you could complete those questions? You sound too good for the Mathematics course and i am keen to see what mark you do obtain if your are supposedly able to complete them. What future do you see for yourself? Formula One Aerodynamisist? or...

Hrm.. we started the course day 1 week one of term 1 and we've just finished the course.. excluding the Advanced 3U chapter. I dont see how it takes so long to finish the course? :S

I dont think you have got the crux of the situation here, these are not SIMPLE questions as you say. If they were simple to you i dont think you would still be completing your HSC this year. A few questions may be able to be worked out after hours of constant staring, but unless your day has 36...

Man kheir your post doenst make sense :S if you're going to TRY and sound mature, please learn how to express yourself by writing in full sentences before you critisize other people for their imperfections. :P