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2013 cut-off was 83. My guess after looking through the paper is that the cut-off will be around 77-79 There was quite a few less calculation questions in this years paper compared to last years. My guess is roughly 67-70 raw.

Yeah...... lol I can explain what questions you might have about it. If you know how a diode works briefly (they only allow a flow of current in the forward biased direction, where you connect the negative terminal to the cathode (flat edge of the LED) and the positive terminal to the anode...

Use Heisenberg's uncertainty principle and the Schrodinger equation to find out the probability of the jelly beans not being inside the box, and already in someone else's stomach :haha:

Yes it might be powered, but there is no kick in it to make it obviously visible its being powered. Also, LEDs work differently. You need minimum 0.7V and then will it start increasing in intensity.

Btw that's called a full wave rectifier. You'll get the LED to flash at the frequency of the AC signal which is pretty cool.

At 0.7V it might only slightly light up. An ideal voltage for a bright LED would be something around 3V. If you wanted to use AC then you would have to make something like this, but keep in mind that you need at least 3V to make the LED light up with a bit of intensity that makes it easy to...

wot

What the.... LEDs are diodes so they work in DC (exception of zener diodes which can actually go back the other way with a high enough voltage). If you are running an LED of AC, then either it is flashing at the frequency of the AC signal or if it is straight lit up for the whole time then...

Its definitely B.

I had the luxury of not having it blocked at my school for the first half of year 12. This was a public school though. I'm not sure, but I think now its blocked at the school.

It might be a push to reduce the need for supervisors, paper, and the whatnot. So in the long run, its probably a way to reduce costs through a "lazy evaluation". However, I still think pen and paper are important lol. Being someone who writes a lot of equations and draws a lot of diagrams all...

Bump for the amazing Drongoski.

That's what they always say. I said I would quit. Nek minnit never did.

Someone upload the paper please I'm dying here. Even if its just multiple choice just upload it. It would be hard to get your hands on the short answer sections. Also, I want to see the Age of Silicon option please.

Let me clarify that when the voltage (potential) increases, as a result, the current through the component will decrease (since the power output is constant by E = Pt, where the energy input is constant), meaning that by ohm's law the voltage drop (potential difference) will decrease (since the...

someone link the paper

Doing same thing as RoT here. Me last year: English Advanced: expected B6 nek minnut B4 MX1: expected a low 90's got that MX2: expected exactly 64 raw but turns out I was roughly on 62 raw coming off other students' raw marks reports. Chem: expected an 80's raw. Turned out I got 74...

Re: HSC Physics Marathon 2014 Yeah that is correct. Well there is a systematic way to derive it. F = BiL sin 90 = BiL Also, the acceleration is characteristic of F = ma by Newton's 2nd Law. So we obtain a = (v-0) / (t-0) = v/t = BiL / m (initially, velocity is zero as our...

A transformer does not have a single direction. You can easily reverse their orientation. Its just a bunch of wires and a uniform core that's all.

Maaaaaa88888te you just called him inferior and then rephrased and plagiarised what he said (no citations wtf). (nah jokes but still your post is ironic)