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Im not sure if this has been posted before, and the search didnt show anything.. From the 2001 2U HSC, 5b)ii well okay, Heres the question for those who dont know it i) Find log10 (2^1000), correct to 3 decimal places ii) We know that 2^10 = 1024, so that 2^10 can be represented by...

1. You say, if the thrust remains constant, and the mass decreases due to fuel consumption, then acceleration of the rocket and astronauts increases. When solving problems to do with acceleration, remember newtons second law is a = NetForce/mass i.e. in a rocket, the upward thrust(T) is opposed...

well thats weird.. i get one angle right and one angle wrong. argh im going to do so badly at 3u!

Wow Thats Cool .. Then How Does Teh Winnar Type In Full Caps Lock? Or Wait... Do I Have To Do It Manuually

Really? Lets See If It Works Testing Testing Testing

Why Did You Type Like That?

wait.. but after t=100, the original concentration brine with 3 g/L runs out and is now filled with 2 g/L salt only. Which means the eqaution should be different after t=100. so why is it limited to 200?

er, so whats the answer?

Thats sort of true. I just finished the papers from 1994 - 2003. In my opinion, the hardest was 2003. I think its because they made the earlier questions less straightforward, so it takes a greater toll, and of course, the energy spent in writing out the solution to Q8 *shudder* The...

You would usually need to show it, at least, thats the safe way. But if you do it that way, make sure you write the as the first line: deltaV = lim {delta x -> 0} Sigma e.t.c

Is all that we see or seem, but a dream within a dream. I would really like to see your animation missytoki.. the face of the guy in the black hood looks like that ventrilouist puppet in the bienalle, the creepy one. How do you make those things anyway? How many frames do you need to shoot...

Yes, you should probably always derive it from the acceleration. Whoa.. that was a weird question. i think i may have totally stuffed it up. I got 61*48` or 39*47` ..

A quick list of isotopes can be found on these sites-> Radioactive Materials Isotopes and their uses im sure you can conduct your own further research on specific isotopes. Cobalt-60, Californium-252 and Iridium-192 are good ones. they have uses in more than one branch. For...

They should consider putting that into the formulae sheet. Since they spoonfeed us all the other formulae, its only fair we get this one.. i was completely lost when you started with the calculus, and im hardly familiar with that eqaution.. Is this all the same as, finding the work done in...

okay this is something you need to be extremely careful about. the final acceleration is given by a = NET Force / Mass now the mass is (29830- 25315)kg = 4515kg NetForce = T(thrust) - mg (not just thrust, theres also acceleration due to gravity as Xayma mentioned) = 380000 -...

wait a sec... the very first bit of eddy currents induced can keep it levitating for a long long time, regardless of whether the magnet is in motion or not. when the fields are balanced, it levitates, when the motion stops (if it ever does), it still levitates. Im confused..

hmm I really hate seeing a text labelled as an "-ism" Hamlet is so much more than just humanism and the likes, even though Shakespeare himself might not have intended anything beyond the universal concepts of his time. But i guess to keep it simple, its entirely plausible to call Shakespearey...

well.. to get the magnet near the superconductor in the first place, a bit of moving has to be done right? It can't just materialise statically above the superconductor. So basically, it will always induce no matter how slight, because physically, it has to move into the range of the field in...

I ussually rewrite my own textbook, which is incredibly tedious.. and then move on to past papers.

"They proved it by induction without knowing they had done so?" what the.