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You guys are talking about the accuracy of SAM and UMAX relative to each other. I would like to know how accurate they are relative the the ATARs we will be getting tomorrow morning. In other words, are there people from last year's cohort that have posted up their estimated UAIs (using both...

For people who don't do Ext. Maths or Ext. English, post up your estimated ATARs

Optical mark recognition - Wikipedia, the free encyclopedia

lol soz, got mixed up with a shipwrecks question

shouldn't the overall E (voltage) be <0 since it is undergoing electrolysis (non-spontaneous), therefore, it needs an input of |E|

HSC Moderation Process Dux College

Thank you, cem!

I was ranked 2nd in my physics class by literally 0.002% behind 1st place. my teacher said BoS only accept rounded-off ranks, so she told me I was placed =1st when it came to submitting final ranks to the Board. Is this true? because I heard on here that it's the marks that get looked at, not...

can I have person 2's MSN? ;)

interesting thought, but not worth discussing

I also thought that relativity multiple choice question about the student on the bus holding a mirror was a little overdone. I put down a), the two students on the bus stop can conclude that the girl on the bus CAN'T see her reflection because the light from her face will never reach the mirror...

Dammit, I just said during the initial stages of a launch, a large amount of fuel is needed to provide the KE to lift the rocket. Then I just said that the KE changes into GPE as time progresses and distance increases, thus, when there's a huge amount of KE that must mean there must be a huge...

I put that down too, and my other reason was that the cell can only produce a voltage at temperatures just above room temperature hahahaa fail. I totally blanked out with that one :mad1:

For the half equation at the anode, I put: Ni(s) --> Ni2+ + 2e- (I think that was the anode, can't remember the question exactly) I was thinking about putting down what it said on the standard reduction potentials, but then I thought it wouldn't be balanced (since two electrons are being...

so does that mean what I put down for the cathode half equation is correct?

I put down as my half equation: 2H+ + 2e- --> H2(s)

Calculate the pH of a solution produced by mixing 50mL of 0.1mol/L HCl with 20mL of 0.05mol/L NaOH.

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I stand corrected, maybe we do have to know it...just learn it to be safe. By the way, that dot point is a little misleading. Not only do you have to know how to work E=hf, but also E=hc/lambda and E=1/2mv^2. You might also be asked to use some things on the data sheet like the mass of an...

I don't think so, but it would help in terms of understanding the concept. I have seen HSC/Trial questions that ask about Einstein's contribution to quantum mechanics, which involves photons and the energy they carry (E=hf), and how that energy is distributed (ie, that energy is used to emit the...