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In the sample questions, one of the examples for mod C was to write an intense moment from the perspective of a character in one of your prescribed text for mod C. tbh I can see them asking the same thing, but with other mods

notice the variable is in the denominator only, so ittl be a hyperbola. Now you just gotta consider the vertical and horizontal asympototes, aswell as the intercepts since the question asks for it. also notice how theres a negative behind the variable, so the hyperbola will be in quadrants 2 and 4

might not be the best explanation, but you can think of it in terms of mole ratio. With NaOH and HCl, ittl be a 1:1 reaction, and with acetic acid and NaOH, will also be a 1:1 ratio. So it doesn't matter really matter that its a weak acid, but since the molar ratios are the same, the same...

works via eddy currents forming on the rotor coils and a rotating magnetic field in the stator. This causes the rotor coil to 'chase' the rotating magnetic field, thus making it move. Thats just a really simplified version of it though.

a/(b+c) + b/(a+c) + c/(a+b) > 3/2 You can consider doing this by considering the fact that: (a+b+c)(1/a + 1/b + 1/c)>=9. Of course you have to prove that first, but its very simple, just expand and use the fact that a+1/a >=2. Anyways, considering that, let a=b+c, b=a+c, c=a+b. Sub those in...

It will look something like this. Note that the second peak, which I labelled as V2, will be greater than V1 (the first peak), since it will be faster as the further it travels down (cos acceleration due to gravity), so the change in time as flux changes is shorter, meaning that the emf will be...

a) Condensation reaction, similar to esterification, but instead of a ester link, there will be a amide link b) esterification reaction, the name of the ester will have the alcohol with suffix -yl first followed by the acid with a suffix of -oate. In this case, you name the alcohol first...

all of it lol

Don't you have to wait until term 1 to drop down to 10u?

Look into the course forboth yr 11 and 12 for chem and phys, and choose which one seems more interesting. Don't worry bout how others r doing with it, if they are doing bad, high chance that they find it boring. So choose which one has more interesting content

_ _ _ _ _ _ _ _. 8 seats to sit on. Mariya must be in seat 1 and Aofa can't be in seat 8, so for now we will put her on the second seat: M A _ _ _ _ _ _. Then you got the 3 ppl that gotta be together so : M A c m h _ _ _ _. For those 3 ppl, they have 4 patterns in which they can sit, and they...

was there something before this question? I've seen the cos3x cos 5x cos7x in one of the cosAcosB=1/2 (cos(A-B) .... whatever the formula is

Is this still in the syllabus? I thought they removed it

Ah yeh, didn't realise what I was saying, even when I stated that oxidation is losing lol. Thanks for pointing it out!

OILRIG: Oxidatoin Is Losing, Reduction is Gaining. Simple terms, if electron is on RHS, its an oxidation reaction, if its on LHS its a reduction. ie Cu_{(s)}\rightarrow Cu^{2+}_{(aq)} + 2e^- is an oxidation reactoin cos the copper is loosing of an electron. The reverse of this would be a...

n=cv (In datasheet so no need to worry about remembering). Thats probably the most important formula in molarity. You also have the c1v1=c2v2, but this is only used in dilution. You also have the other measurements of concentration like w/w%, v/w%, ppm and like 2 more I think, but they are just...

easiest thing to do is to draw a rough sketch of the graph. Then you can easily find the max distance with a given time. For a) you can imagine that you're restricting the domain so that its only from -infity to 6 (As it asks for the first 6 seconds). then you just need to find when it is the...

Do the hw a few times and make sure she knows you do it so she you get on her good side, then you can slowly sack the hw and do whatever you feel

Past Papers

1. Expanding the combination you get : \frac{n!}{7!(n-7)!} + \frac{n!}{8!(n-8)!} You can expand the denominator of the second fraction so you get 7!(n-7)! and then just do basic arithmetic and solve for n