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Mathematics: Post your doubts here!
Got it :D Now at maximum speed, acceleration is 0, obviously because it can no longer go faster. So you must differentiate to get the acceleration function, and equate it to 0, to get t. First expand the velocity formula... from k(60t^2 - kt^3) to 60kt^2 - kt^3.. v = 60kt^2 - kt^3 ... -
Mathematics: Post your doubts here!
Finally a mechanics question lol. I was getting a bit rusty in mechanics. I'll try it and get back to you. -
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Mathematics: Post your doubts here!
I did that, it was easy compared to november 11 p12. I couldn't even finish it, it exhausted me. -
Mathematics: Post your doubts here!
Guys, I have a question. What is the most difficult P1 paper you have solved... ever? :P -
Chemistry: Post your doubts here!
No problem. May Allah grant you success, and myself as well. In Shaa Allah :) -
Chemistry: Post your doubts here!
I don't really know. I'm an AS student, so I know this from my paper 3 practical (not alt. to practical), so I just do this in the lab. -
Mathematics: Post your doubts here!
Is it only me or is solving P1 papers very very boring? I can't finish a whole paper without taking like 3 breaks in between, it's just that boring lol. -
Mathematics: Post your doubts here!
Asad Draw an upside down Y, something like this and use it like a template to guide you as to where the axis are :) -
Chemistry: Post your doubts here!
You heat the sample, and decomposition will happen, reducing the mass, you let it cool, measure the weight, heat again, let it cool, measure the weight... and repeat the process until the mass no longer changes from one heat to another. This is based on what I know from AS practical paper 3. -
Mathematics: Post your doubts here!
Lol may 7th, like 3 days left. -
Mathematics: Post your doubts here!
iii) Since you did ii, the vertex of the graph is (-b, c) as in the equation a(x+b)+k... and since a>0, then the graph is opening upwards, so y is >= (greater or equal) c. iv) I'm gonna guess that this is the x value of the vertex, because at the vertex, a horizontal line would intersect it only... -
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Mathematics: Post your doubts here!
I did this one, but I can't find the paper in which I did it on... Anyway! Sum to infinity is S∞.. S∞ = a1/(1-r) Both S∞ of both sequences are equal. a1/1-r = a1/1-r 1/1-r = 4/1-0.25r P.S. I replaced 1/4(r) with 0.25r cuz it's easier to read and make out from the rest... anyway Cross... -
Chemistry: Post your doubts here!
Who took may june 12 physics IGCSE... Now that paper was an eye opener lol. -
Chemistry: Post your doubts here!
Suckish timetable placement by Cambridge tbh lol. I mean Chemistry directly after P1.. Come on lol. -
Chemistry: Post your doubts here!
Is anyone other than myself giving AS Chemistry? :P As in papers 1,2 and 3. -
Mathematics: Post your doubts here!
Well I have no idea what A.P sum formula is... :D But model 1 here is an arithmetic sequence, and model 2 is a geometric sequence... For model 1 you have to find the sum of the first 40 terms of the arithmetic sequence... That's the formula.. Sn = n/2[2a1+(n-1)d] Sn =... -
A level Biology: Post your doubts here!
They're all here.. http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20%289700%29/9700_y13_sy.pdf Look for definitions section. -
AS Chemistry Question
You can't increase the pressure of a single side... The cation size doesn't decrease down the group... They increase, so does the anion size. I believe what you meant was that cationic radii are shorter than their parent atoms', and anionic radii are greater than their parent atoms'.