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Yes, the magnetic north pole is in fact a south pole.. but this is going to change in due time, due to crustal movements of some sort.. so one day, someone's out in the bush... their compass will suddenly switch to the other side. ahhaha.

i think it was a) about bullshitting and b) about procrastinating with as much bullshit as possible. i wrote about all the stupid little discoveries like the top quark ,pi mesons and smashing atoms, and used the word "accelerator" at least 100 times. for 7 marks that was the worst question ever.

AHahhaa Thank GOD! I was thinking about this the other day... with my compass, and im like.."Why the hell does the north end of the compass point towards the north end of the Earth??" it all makes sense now! This is like when my physics teacher wrote on my paper "no valence electrons", and i...

rofl!! good luck and try hard everyone... damn i still have another whole week till HSC finishes.. another week of hanging around doing nothing.

whoaho slow down there.. 1/R - 1/r is not equal to 1/(R-r) ^^

No way! What were your names! I TAUGHT that class..

unless they ask for change in energy in raising an object... then its positive.

That's impossible, it has to be 60.. or at least very very close to 60. wait this is beta decay right? not some kind of advanced phenomenon im not aware of.

Ah okay, so when the n-type and p-type are joined, electrons from the n-type fill up the p-type, and then when the light hits the p-type, it knocks electrons out back into the holes of the n-type, so the current flows p to n like it should.

Im betting there are a shitload of artist students out there who are like.. well.. they would crush each and everyone else in the state like ants. They don't come here because they're busy at this very moment immersed in the creation of a new masterpeice, an Adoration of the Magi to go on their...

so.. light falls on boundary and electrons are excited from the semiconductor (ntype or ptype, i think in some cases, either can be used?) and into the other one to fill up holes. This set an intense electric field at the boundary and makes a current flow..?

Then i think you're teacher's wrong.. What happened to gravity? I'm not too sure about my calculations.. but im pretty sure Net force means you have to take into account weight force downwards as well.

I like chicken too. They weren't trying to disprove anything. All they were trying to do was measure the velocity, by assuming the aether is there with no exeptions. The null result just showed there was either a flaw with the experiment, or a flaw with the theory, because the velocity of...

I really want a 'real' camera ... like a huge Canon or Nikon D-series, except i don't expect to be making a couple of grand to spend on cameras anytime soon lol. These are really amateur but it was fun making the page: Photography

The first one, im not quite sure what you mean by, moving the magnet and turning it. I think you're talking about eddy currents induced in the disk, so yes, a north pole is on the disk if a north pole is moved vertically downward. If you move the magnet sideways, then a north pole will be...

On bored of studies http://www.boredofstudies.org/view.php?course=13 use the exemplar answers

Yes that's what i was thinking, convo of energy states that the TOTAL energy of a system is constant.. but this question sucks.. like seriously, the actual states of PE and KE change, as it works in respect to the earth's gravitational field. Anyway, this is from the STANNSW trials 2003.. i...

A bullet is fired into the air. If all friction and resistance is negligible, which of the following statements are true: A) Energy of the bullet and acceleration remain constant B) Energy varies and acceleration remains constant C) Energy constant while acceleration varies D) Evergy and...

WHAT?!?! really!???! but but.. 8 mark is the traditional question... and .. wait. They've never have an 8 marker outside of the option. But there's always one at the very end, it's the essay question!

BWAH?!? hey! I get to go through yours then : P