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LOL if you look at the sample pages for the in2Physics Activity Book, the graph paper is so dodge. Some grids have 9 squares and some have 11 ==; Personally I remember reading Macquarie ages ago and thinking it was really crap, but that could just be me. in2Physics a lot of schools use, and it...

Haha maybe it was Ruse instead. Not sure. I can only imagine that the fish higher up the food chain would have attempted to have those Year 12s slayed if it was at Ruse =O

Here's what I came up with. It's a bit long and convoluted because you need quite a bit of working to get to the exact value, which I think you should leave the answer as. Kind of stuffed up the guess of what directions the tension/lift force was in so had all this negative shit. Hope it kind...

Hey AAEldar, out of interest how do you determine in which direction the life (lift?) force and tension force act? I assumed that tension and lift? both acted up but in opposite horizontal directions, and everything came out whack with negative signs =\ Which means it's in the other direction...

What on earth is the "life force" of the plane?! Sounds quite epic. I'll try to do it but I'll just assume it's like buoyancy force upwards. Could you post the answers from the textbook here for us to check if our method's correct? Thank you

LOL that would be hilarious. Imagine them running around the school and teachers chasing them. Is it true that one year Hurlstone Year 12s led a cow up the stairs to the top level of a building as a prank, but then they couldn't get it back down (because cows only go up and not down stairs for...

LOL Harder 3U > Conics > Mechanics > Polynomials > Complex > Integration > Graphs > Volumes Surely volumes is the easiest one! The others are so hard ='( Man harder 3U inequalities...want to headdesk when I see them

Haha I'm sure you can, but there would probably often be a simpler way (especially for using integration in an HSC physics question). In maths you can if you derive it I guess, like in 4U motion (like using v^2=u^2+2as). Stuff like conservation of energy I use as a really quick way to check my...

g is certainly not constant lol but we approximate 9.8m/s^2 for points near the earth's surface Isn't there an entire dot point that asks for reasons that account for the variation in g? And just adding on to what qwerty said, integrate between limits from infinity to a distance r

I think this is how you do it =D So you need to find momentum given the wavelength of a particle...what equation is there that relates the two? (Remember that p=mv) For the second part, you have to remember that linear momentum is conserved in all situations. So if that photon somehow was...

I think the time should be the same. That's the whole principle of special relativity (that there's no absolute frame of reference). But it also depends on the frame of reference that the event they time is in, since that is the proper time (t_0) you place into the time dilation equation, but...

They are all negative cos curves; just all with a phase difference. But if you think about it that way, if anything it should be A. D would be a negative sin curve. Anyway yeah LOL I was just posting to show my support for option A. As demonstrated by \varepsilon=-\frac{d\phi_B}{dt}, you simply...

just out of interest, what is the RHSR? =P

Re: Wolfram Alpha Lmao I was looking for how to integrate \int \frac{\sin^2x\cos x}{\sin x+\cos x}\ dx http://www.wolframalpha.com/input/?i=(sin^2x*cosx)/(sinx+%2B+cosx)+dx Ended up with like 10 pages working LOL

zzzzzZZZZZZZZzzzzzzZZZZZZZZzzz i hate how ppl always spread misinformation to try and discredit ruse stop bullshitting

they can but just not for any substantial period of time =\

Of those, only air resistance is a real identifiable force. Inertia is not a force but rather a tendency of the body to resist acceleration (it can be considered to be essentially equivalent to mass). Centripetal force is the sum of the forces that add up to allow the car to travel in a circle -...

oh god so many In Year 7, these two guys were fighting over who could do that thing where you flip up a soccer ball behind your back. They did it with a basketball and one of them did it so high it smashed right into the fan, everyone ducked, and it slammed into the wall onto this hamlet poster...

Maybe in other countries/states but definitely not NSW...in other countries you have line integrals and all these crazy calculations. But here we essay write...what true true physics is totally about T__T It used to still have all this great stuff in it but now we end up learning about assessing...

Ahh I love the Catholics!! They give super good papers =D I think the important thing is that in the equation \phi=\mathbf B\cdot \mathbf A, B and A are independent of each other and the flux. So changing either of B or A will change the flux, but reasoning that because A decreases, B...