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hmm don't know if weak acid one is in syllabus anyway.. 0.1 M 5% dissociating will give 0.1 * 0.05 M H3O ions so [H+] = 0.005 mol/L that gives erh 2.3 pH 5% dissociation sounds a bit high for acetic acid

and bijective means both

hey you are doing the same course as me skunk, follow the hints, e>(1+1) e>(1+(1/2))^2 ... e>(1+1/n)^n we can rewrite as e > (2/1) e> (3/2)^2 .. e>((n+1)/n)^n multiply the inequalities together notice the products (2/1)(3/2)...((n+1)/n) 'telescopes' and gives (1+n)...

you still have about 70-80% of assessments (the assessments weigh heavier towards the end)... seconds *less talk more action*

STAT doesn't work for med... you better do well in UMAT and get and high UAI

it's better to remember simpson's rule as h/3 *(1424242424242424....1)

this is getting rather philosophical, I thought the same way once when I was younger, but figured it doesn't make a difference. Either way of thinking should be consistent.

I think they are basically asking for a equation. GPE + KE >= 0 for V> escape velocity. -GMm/r + (1/2)m(v^2) >=0 v>= sqrt(2GM/r) (which is the escape velocity) so you can BS: The escape velocity is the minimum velocity that an object must have to depart a gravitational field...

Jacaranda/get the posted dot point notes on this site

1.) Forget about the engineering faculty. 2.) Computing would be difficult 3.) Finance courses contains maths. keep it, it will give you more options

standard tables are computed using series expansions. proving tan(pi/4)=1 depends on what definitions are used

that's to do with gravity if my memory serves me correct

1.) don't lie to yourself, you should know if you were trying to fudge something. 2.)Bug your teacher. 3.)Bug the math gal/guy in your class 4.)MANSW past paper + solutions booklet from 1993, only about $17

y' = 2^-x y = integrate 2^-x dx y = integrate e^[-x ( ln(2) )] dx y = - [ 1 / ln(2) ] * e^[ - ln(2) x ] + C then you substitute your initial value to find C.

perhaps you might get more responses if you posted 'year 11' question in the preliminary forum :D

sounds more like someone preparing for olympiad and mucking around here. anyway, the first graph is called a cardiod, it looks like a heart, why don't you plot it with some software or just search cardiod up the net the second question. say A is on the point (a,0) and B is on the point...

yeah... go back and do chapters 1-3.

wouldn't help.. too much writing to do

cambridge or couchman is good.

crystal picking (ie, picking the copper sulfate crystal out of the mixture with a magnifying glass) J/K Ok.. what you do here is filtering, because it's a mixture of one thing that dissolves in a common solvent(water) and another which doesn't. ah and you only need to weigh the original...