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Uai99.80 I think i try my best~~~still miss the 0.20~~~

but rememebr u can only assume that PURE water can have a density of 1g/cm^3! not a random polluted water or a sample obtained somewhere!

i storngly agree with r6 i am 100% sure what we need to do for q26 nevertheless, for q27 i am not quite sure about where it is sufficient to talk about just these issues. what i have done is foucs on the microeconomic reform which can actually liting economic growth and achieve a lasting...

THAT's whai i did i calculate the tds and the total undissolved solids and clarifeid them .Then i calulated the percentage of the tds of the total solids which can be calculted by simly together to get the percentage cause i think tds should be expressed as a percentage since the normal unit of...

I think for question one there is a quick way to do it becasue w=qu and all the work done is transformed to the kinetic energy so w=qu=1/2mv^2 then u will get the same expression for v instaed of doing those elmination of d etc

This is ....................... i would not say it is intersting i think it is extremely technical. Especially the way he deals with those sequences at the last page..

What if x=0,y =0? then i think the locus of Q can also be the origin besdies this circle

sorry mate it is just our text book jacaranda

I got some problem with the question on the test book. on page 11 q1 asked "can u suggest a reason why it should be so reliable? i really do not know how to answer it. can someone please help me ASAP please?cause i will have this prac today. THANKS HEAPS!

Thanks Heaps! Thank u very much for helping! Thanks guys!

how about .. if the aim is teated the validity of something howcan i make a conclusion?

of course yes i have handed in the form today.. by the way i think i am not really smart cause i found one guy in our school is very very smart, he does not need to revise but can get a perfect mark for eco which i reckon as the hardest subject so far ..

this is my result maths:99% maths extension1:98% esl:72%(that sucks) eco:?? chem:95% phyics:90% by the way idid really bad at the practicals....

can anyone good at doing phyics practical tell us any tips or things have to be done etc...to make a good report? thank u for ur help! i am just so confused about how to write a correct conclusion.......

furthermore i believe that the diffraction only occurs when the size of the gap is similar to the wavelength of the wave .

u are quite right sorry i was just so careless that i did not notice that. i think u are right mate

sorry i am just confused as u say if o3 is decomposed by uv and cfc in the sratosphere how can it has the highest conc ?

by calculating as shown by ur calculation on the paper ,focus on the left starting point of the left wave and the right ending point of the right wave . after 0.6s ,they will be at the same point hence the resultant 2 waves must be conneted .

for Qiii i think the graph for Tension and Acceleration is simply a linear fuction:y=kx known from newton second law f=ma

of course the phyics teacher is correct because the resultant 2 waves must be connected . they won't be separated by any interval between them