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One of the questions I must answer for my upcoming assessment (concerning the photoelectric effect and the particle model of light) asks: Regarding light, what are some possible future directions of Physics research? Here's what I have so far: Classically, light was considered to be a wave by...

Re: 2014 James Ruse Question 16a Thank you so much for your help; I understand it a lot better now :smile:

This is the question: http://imgur.com/9t4UWJO My solution(s): http://imgur.com/p28GCzW Me and my teacher both had similar approaches to parts i and ii, however, we had different approaches to part iii. I am probably more inclined to trust his method (Method 2 on my solution sheet) as...

My prescribed text is Go Back to Where You Came From, which if you are unaware, is a TV show in which regular Australian people 'discover' the tough life of refugees and asylum seekers. I need a related text though. I have found "Neighbours", by Tim Winton, which is concerned with a very...

Ok, I've been reading a lot about the Meissner effect and have looked at old threads on this forum which ask similar questions to mine, but haven't been able to find a good answer. In the situation where a magnet is placed on a warm superconductor, which is then cooled, and the magnet will start...

Apparently it's from the book "Accelerated Maths Learning: Year 11 Extension 1 Course". My teacher sent it to me asking if I had any ideas. I didn't (although I didn't spend too long looking at it), so I offered to post it here

Physics: 1/10 (Avg 97%) Chemistry: 1/10 (Avg 98%) Maths Ext 1: 1/8 (Avg 98%) Maths Ext 2: 1/2 (Avg 99%) English Advanced: around 3-6/~30 (I don't know my exact rank, this is simply an estimate) (Avg 90%) I should say that the first English assessment was weighted 25%, and pretty much all of...

http://imgur.com/fGMFrEa My teachers say that this question is flawed: is it?

Ah, thankyou. Knew it was right under my nose :)

http://imgur.com/jghkxRx For some reason, I'm stuck on part ii: I know that beta is equal to p^3 + p^5 + p^6, but I cannot find a way to "justify your answer". It's probably really obvious but I just can't see it. By the way, I'm fine with all other parts of the question.

For these type of hydrocarbon questions, I usually start with balancing carbon, then do hydrogen, and always do oxygen last. I don't know if that helps but that's what I always do

re: HSC Physics Marathon Archive Would it be equally acceptable to have a similar diagram but with the light coming from an external source (e.g. lightning strike), and say that the outside observer sees them as simultaneous while the inside observer doesn't?

Ok, so I'm a little confused about this. 9.3.5i says "describe the main features of an AC electric motor" My teacher says that he suspects that this refers to an induction motor, however both textbooks that I have (Physics in Focus and Excel HSC Physics) state that an "AC motor" is just...

Would you suggest something different?

Hi guys, If an exam asked for a diagram of an AC motor, would this diagram be good enough: https://imgur.com/CHd9unr Is that good enough, or should I draw it from a different angle? Is there anything that I forgot to include? Thanks.

https://imgur.com/sZ3AfXj I was curious as to whether some kind of numerical calculation would be required, seeing as they provide heaps of numbers. The thing is, I wouldn't know how to calculate anything using what they've given. Help, anyone?

By application of the right hand grip rule, where the fingers are current flow and thumb points to north pole: in B, the left magnet act as a south pole and the right magnet act as a north pole.

Thank you heaps :cool:

For part iii, is it enough to do the following proof? I spent ages trying to look for a way to prove that opposite angles are supplementary (this is usually what questions like this want), but couldn't figure it out.

I'd agree with the others; it's quite enjoyable once you understand the concepts behind what you're learning. For me, it can sometimes take a while to fully understand/appreciate a concept, but once I do, it becomes an enjoyable subject to do. So far I'm enjoying HSC Chem more than Prelim...