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Re: UNSW 2013ers Rollcall Btw ON, why didn't you just make it "2014" instead of "2013ers". That way, others can join who are in other years.

Yeah only if I do tutoring I'll get them. I'll base my estimates off the raws of others for now. I can still do it last minute if need be.

I did a lot of randomly bad shit to a few teachers. We had one teacher for languages and music which we always fooled and got out of detention. I used to take my water bottle, then pour it all on the floor, then squeak my shoes whenever the teacher spoke. Then one day, we had a class...

Re: UNSW 2013ers Rollcall BE ME Electrical Engineering.

If we're looking at things from the electron's frame of reference, would "to" be the time in time in the electron's frame and "tv" be the time in the lab? (which is undergoing dilation). This is correct. It is in whichever frame of reference you are referring to be observing from, you get "to"...

Kinda happened with me. Got the highest out of 50 friends and family and all of a sudden I'm noticed.

To be honest, there weren't many curve balls (mc was super hard though). And after speaking to a few people, the use of the solar cell as an answer was included in the photocell question, since a solar cell technically still is a photocell. I'm not sure about your options, but ours was dirt...

Out of curiosity to see how close my estimates were and how accurate my maths marking was.

He said yes to commenting and to paying. Generally, it is a service charge for making them find your exam and giving a report really. And you have to pay for the marks checking which is $16 per subject, whereas the raw marks report is only $5.50 per subject. They do a clerical check to see if...

This is very, very true. I didn't understand it until I realised inertial frames of references apply to such a situation. Then the twins paradox just solidified my realisation. Repped.

This is also explained by the twin paradox. Basically, in the electron's frame of reference, someone moving in the lab will seem to be moving in slow motion. This occurs as of the formula: t_v=\frac{t_o}{\sqrt{1-\frac{v^2}{c^2}}} Jacaranda has a clearer explanation on this. Now, if you...

O.o I thought you already knew. Its accustomed to allow our hints and clues help them first, and if they still have problems, they can highlight and check below, or check their answer with ours. And thanks funnytomato for doing the honours of showing others how to find the answer.

Relative to the lab in its inertial frame of reference, the electron is travelling at a constant speed of 0.2c. Relative to the electron in its inertial frame of reference, the lab is travelling at a constant speed of 0.2c. You need both to be in an inertial frame of reference as stated above...

Re: engineering studies whos doing engineering studies 2014 HSC!!! lets make a thread What is a good resource to read over the course before starting uni?

As I said above.

It says qualitatively, but because it asks "explain" you should still use calculations. You should also quote the formulas. In the laboratory's frame of reference, the electron will seem to have a larger mass than when stationary relative to the laboratory. Also, the electron will seem to, in...

If OP is still stuck, highlight below: The maximum height occurs at x=10m, since the parabola given is symmetrical. Also, instead you can just derive and find the maximum point (you will get x=10m). now substitute x=10m into the equation and you will get that the maximum height is...

haha np I got the ATAR and I don't really care anymore. I won't have to write an essay for ages now. "No regrets, Mr. Freeman."

Know that feeling for eco. I loved chem though.

This. You don't need anything to learn basic differentiation and integration. You only need Polynomials, Graphs and Circle Geo knowledge when doing 4-unit integration in HSC. Logarithms and exponents are required at the latter stage of 2-unit and 3-unit HSC Calculus. Being someone about to...