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Didn't you need to learn about half-lives, isotopes and radioisotopes and give like definitions of them? Iuno this is what i remember doing haha. True that though, if anything, it'd be a graph.

hhaa yeah! Isn't that sort of half-life question in like yr 10 science? Besides I think you need to know more about half-lives for phys for your option if you do medical phys like I do haha

If your talking about study (work outside of school) then I suppose like 4 hrs a week which includes tuition and doing a past paper as well. As the above said tho, theres really no need to spend much time as long as you understand the concepts. Overloading yourself with past papers will just...

I reckon if they had like more info (for phys) then they would be heaps better. For some reason I just hate writing/reading notes that are summaries and don't include everything haha.

well most probably your modern wont count if you think your about equal with phys/chem. Chances are maths will count if your doing 4u haha.

anna has there ever been a time you haven't agreed with me :p

But its an important property of many radioisotopes that make them useful for their use? I say learn a general idea about it so then you know how to use it in an answer.

Reshad! Stop stressing about it! At the moment, considering what you told me and your predictions, I reckon your predicted would be like 95-98. Like I told you, make sure you pick urself up for trials. Also, check with your subject coordinators to find how many people got band 6's in each of...

LOL if you can't recognise that the notes are bogus then thats your first problem.

Have a chat with your teacher. She might be able to suggest some things. Otherwise get a tutor. Don't try to rely on them however because that will get you nowhere.

what a coincidence, for my yr 10 assessment that happened too! Tho the teacher like forgot half of our test and everyone was full relaxing and then in the last 10 mins shes like ohh shyt, goes runs to get the rest of the paper and we do it. Shytty thing was I got like 96% and the next highest...

haha nice im in the same boat too..Finished a 2hr test with 45 mins to spare xD

LOL i use it as a guide when im writing my actual notes. Like you know exactly what has to be in which dotpoint and the kind of the detail you need to put in.

I think you will need to write a brief statement. For this locus, you'd say something like: "a parabola whose axis is parallel to the x axis with V(-1, 0)" You'd probably have to say all of this because if the locus was a circle, you'd probably describe the radius and centre whereas you don't...

MAKE THINGS HAPPEN, or are you someone who GOES WITH THE FLOW of life and WATCHES THINGS HAPPEN ?? I tend to make things happen by trying initially then become lazy before a test and go with the flow.

Oh whoa daym didn't think of that. I did something very bad and did not right my daym eqn. My teacher told us that it would haunt us one day and it now it happened haha. Good Job. :D

no it doesn't matter as long as you do the best you can. If you last in a selective school and your in top 20 in a ranked 300th is there much of a difference? The only thing that does not work in your favour if you are smart and go to a "disadvantaged school" is that if your first in your subs...

hopefully he made a typo then haha

Thats why you make solid notes =P

a) ph = -log10[2 x 2.3 × 10–4] = 3.34 b) Not sure if this is the right way to do it but i get a different answer anyways. Hopefully someone can correct my mistake. H+ = 10-ph = 10-1.58 = 0.02630267992 M Therefore H+ concentration for Sulfuric acid...