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I did two for my essay, it aid atleast 1 related. It's better to have two.

Does any one have notes on the all the pracs for accuracy, valid and reliability and variables?

Umm, for the motors topic, i get confused with all the conversions of the units for calculations, does ne 1 have like how to convert all the things you need to convert in motors topic. like mili amps to amps, lol and all that stuff. Also umm the for the current flow, do u take it as + to -...

the answers is 40 ms^-2. also i thought u would need to use (t-mg)/m but what is m (6x10^7 -9.8 X m)/m how do u claculate m?

A rocket has a mass of 2x10^6 kg of which 80% is fuel. It develops a thrust of 6.0 x10^7 N. Its rocket burn at a rate of 2x10^5 kg min^-1 Calculate the acceleration of the rocket at time 4 minutes. Umm i am kind of confused on thi.s

gagan15@gmail.com Thanks man

Thanks man, This is the most idiotic question you have heard but why have u only got 1 Sulfur atom.

What is the strucutre of the polymer: polyvinylchloride: its a multiple choice question. A strip of blue litmus paper is placed in dilute solutions of magnesium oxide. Predict the effect the solution will have on the litmus paper? Umm, confused, lol, those oxides are basic when they react...

1) Alkenes and alkanes 2) Fermentation 3) heat of combustion if there was Variables Controlled Variables would be awsome Thanks

Hey, I;m sure this would help alot of people not just me. I was wondering does anyone has notes of stuff like validity and reliability and accuracy, safety and evironment and justification on the pracs. Would really be helpfull. Thanks

Yea i think now i get it. thanks.

find the equation of the common tangent to the parabola y=(x+1)^2 and y=x(x-4) and find the gradients of the common tangents to the parabola y=x(x-4) and circle (x-2)^2 + y^2 =4 Thanks

umm, it means it is moving with respect to it.

Hey, i got this question, COuld you also please post a diagram aswell. THanks inadvandce 7) P(acos(theta),bsin (theta) and Q (acos (thai),b sin (thai) lie on the ellipse (normal one) if PQ subtends a right angle at (0,0) show that tan (theta)tan(thai)= -b^2/a^2 b) ud PQ subtends a right angle...

Yea, I wouldn't mind em aswell:p.

But it won't be 9.8 at every altitude, that's what i am wondering. As the rocket goes the the gravity effect decreases, right? Wouldn't you calculate that and add that value to 54?

Thanks, could you please also explain the app weight thing. Thanks Also this question A model rocket has a pre launch mass or 85 g, of which 25g is solid propellant. It is able to deliver a trhust of 3.8N for a period of 2.8s. Assuming that hte rocket is fired directly up, determine 1)...

I don't understand the apparent weight thing Sum of F witha arrow to the right = ma (the "a" has a arrow at the top pointing to the right) then it says "so that T-mg=ma" T= mg+ma The T's and g's and a's have the arrow. Could some one please explain this. I have no clue what it is...

Which would be better, I have good notes from my teacher on both. THanks

Lol i use to play it, Get pissed when your kingdom gets raped. lol so i quit after it happened 10 times