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"the HSC is significantly easier than these papers" Understatement of the century

Thanks for all your hard work carrotsticks

it was done at usyd

Yeah the notation is tricky

re: HSC Physics Marathon Archive Observaion: all known waves need medium Hypothesis: light ha smedium Problem raised: ligjht needs medium Experiment, data and results: Michelsen and Morley (describe briefly) and then analyse implications Support for hupothesis: results show there is none Then...

yeah I know the one you are talking about and that sparked my doubts with what to do for hsc

In 2009 they asked a six marker on the Standard model and as of yet I don't know 6 marks worth on it (maybe like 3-4). What are the chances of them doing a long response on it again or is likely to be something more common?

the marking guidelines for q25 says eddy currents are induced but no breaking (http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2011exams/pdf_doc/physics-marking-guide-11.pdf) so basically according to the HSC it seems that they do form but they are insignificant in size so no breaking

Some sources say that and that is what I thought but sources such as the link I posted in my 2nd post violate that. What would the markers opinion be?

Also with induction cooktops is it fine to say that AC causing alternating magnetic field that causing eddy currents to be induced by Lenz's Law (obviously i'd elaborate in test) in the pan and due to the high resistance of the pan since P=I^2 *R heat is produced to cook the food. Because irl...

Due to contradictions in information from both HSC and textbooks I just want to clear a few things up. For the purpose of the HSC are eddy currents formed with a copper tube with a slit in it? (there was a HSC MC that said they didn't yet there was a HSC long response that said they did. I know...

I skipped 1 easy mark I'm lucky it wasn't more. That's the problem with my exam technique

from carrots solutions I got between 82-85 raw. I worked too slowly and stressed too much which isn't like me in exams though. The amount of careless errors though. I got product rule wrong :(

Damn I did that too

Now my careless errors will haunt me forever. How I screwed up the product rule I will never know

What will 84% raw scale to?

isn't it usually more like 95-97

Shut up fadi

Hopefully no one read it wrong and came for 1.55pm

So I was talking to my friend and he asked me what is orbital velocity of a geostationary satellite relative to. I said the axis of the earth which is considering stationary but he's not satisfied. I thought that a particle undergoing centripetal motion is relative to the centre of the...