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Know how to differentiate between independent and dependent variables, know what reliability, accuracy and validity are (and the differences between them), make sure you know what constitutes reliable results and how you can improve experiments.

Punch in 8/12, divide by 100, add 1, then take the answer to the power of 12.

The question if from the green 3 unit fitzpatrick book. From what I remember it can be done by 2 unit techniques but its not especially easy.

Here's how I would do it: 8% per annum = (8/12)% per month. To make it a yearly rate, we make R = (8/12)%12. Therfore we get the R +1 = 1.0830... (store this number in your calculator). Let An denote the amount of money in the bank at the end of n years. A1 = 500(1.0830..) A2 =...

People just want to see what UAI they can get if they study hard. It's also useful in case you don't exactly know what you want to do in uni, and also in case you wish to transfer to another degree later on if you don't like the one you are in. Your high UAI will be of help then.

The principle to remember here is that as the rocket is burning fuel, it is losing mass (i.e., the fuel it is carrying is being burnt, reducing the overall mass of the rocket). Since the force of the engines is constant, according to the formula F = ma, the acceleration must increase if the mass...

Going on from what word said y = 4x = eln 4x= exln 4 Int(y dx) = (1/ln 4) exln 4 + C = (1/ln 4) 4x + C

I don't think so... For example it would not be reasonable to evaluate limits for an expression as x-> infinity simply by plugging in a large number into the expression. In this case how will you be able to show that the two numbers add to pi/2? pi/2 is an infinitely long irrational...

If you want to do it more algebraically: cos-1 3/5 - tan-1 (-3/4) = pi/2 Let x = cos-1 3/5 and y = tan-1 (-3/4) cos x = (3/5) and tan y = (-3/4) sin x = (4/5) , sin y = (-3/5), cos y = (4/5) x - y = pi/2 so sin(x-y) = sin(pi/2) LHS = sin(x-y) = sinxcosy - cosxsiny =...

Yes. You don't have to worry about elliptical motion too much. Always remember, that velocity determines the period of orbit, and the period determines the radius of the orbit.

Yep, its pretty easy. If you can do the practise test, you will be fine. Just be sure to type the answer to the questions, rather than copying them straight from maple. For example I got marked wrong when I copied the correct answer from maple, "-15.680" and pasted it into the test. lol the...

The substitution you used was u = sin x So when you integrate (1-u2)du you get u - u3/3 which is sin x - sin3x / 3

A diagram really helps. Becuase in this case the parabola is concave up, the equation is of the form (x-h)2= 4a(y-k) where (h, k) is the vertex. so it becomes (x+1)2 = 4a(y-4) Since the focal length is 2, a = 2, so: (x+1)2 = 8(y-4) is the required equation of the parabola.

Did you do the test that was on the blue paper? That seemed much harder than the ones in the back of the algebra book, and also much harder than the other yellow paper. :(

This might be counter to your intuition but it is true. The reason lies in the fact that as a spacecraft is falling in orbit, it is converting the gravitational potential energy it stores into kinetic energy. Now, since GPE actually increases as you move away from the earth and drops as you move...

For maths ext 1, I estimated I got 68/84 in the HSC exam as a raw mark. My aligned mark (i.e. HSC mark) for that subject was 47/50. So clearly 80% in extension one should easily drag you to a band E4.

A Bronsted-Lowry acid is any substance which is a proton donor. A Bronsted-Lowry Base is any substance which is a proton acceptor. For example HCl(aq) + H2O(l) -> H3O+(aq) + Cl- In this example, the acid is the HCl molecule, because it donates the proton (i.e. the H atom) to the water...

Re: is it true that private school students tend to get a higher UAI than public scho My theory is a really bright student will do well just about anywhere with the right attitude, no matter what school they go to (worse comes to worse, they will teach themselves). But a borderline student with...

I suggest people interested to read this website for more information on special relativity..its quite cool.. http://www.phys.unsw.edu.au/einsteinlight/

Don't worry, you only have to put up with it for this year. When (if) you do physics in uni, the questions are basically all problem-based :D