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Explain that acidic environments accelerate corrosion in non-passivating metals The question is, why? Is it because there are more H+ ions, or what?

Are you talking about the phallus induction?

Last year I got around the same rank as yours, but a decent exam mark saved me, so just study hard :p

http://integrals.wolfram.com/ to actually download it to your HDD would mean you have to download few programs, for example Mathematica which is the backbone of the website above. Maple is another one. They're quite expensive.. cough*kazaa*cough*warez*cough

that integrator website really helped my homework back few months ago :D

Actually, the solution seems quite short for my working, it makes me wonder whether I did it right or wrong.. by the way, is the answer 10 + 10(sqrt(2)) m.s^-1? The answer is independent of any values except for g.. edit : I misread the question, my answer is incorrect, so move...

Do we take g as 9.8 or 10? Some textbooks tells you to take g as 10, I'm not sure about fitzpatrick.. edit : they give an answer in the back in exact numbers and not in terms of g right? :D

Of course it's possible, if no-one asks for questions :D

http://www.boredofstudies.org/community/showthread.php?s=&threadid=11373

I've been wondering what "friends" means since I came to australia..

claim that the whole class has that textbook they're ripping from :D

Send to mail or post here? I reckon you should post here instead of sending to mail..

Those teacher's excuse will be that "they reward students who does their work". So don't bother complaining :)

It's also what my teacher says. But i thought i've seen somewhere that when you get a correct answer to "find the volume or stuff", you get full marks? The reason i'll write it down is because I can never be sure of the full mark stuff..

Here's a simulator for this problem : http://www.utslive.com/clockclock.html It suggests an answer close to mine. What do you think?

This is my full solution to the three questions: Let @ be the angle between the hour clock and the 12:00 position, with clockwise direction as positive. From then, for the hour arm, H_x = 3sin(@) <-- as opposed to 3cos(@) from before H_y = 3cos(@) For the...

correct! +1

Maybe practising to write that thing in 30 seconds will help :D BTW this thing is part of volumes..

Problem is, my maths teacher emphasizes to write 3 lines or something of the riemann sum stuff. Oh well, better be safe than sorry.. Great, now the answer to number 3 came from the person It should have come from :D

1 kg wT = 9.8 N, it's just another unit of force. now because scales display "kg", and they're really measuring force, it means that they must be measuring the force in kg wT...