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A2 Physics | Post your doubts here
Subtract min. possible value of t^2 ((t-0.01)^2) from max. possible value of t^2 ((t+0.01)^2), Then divide by two. (((t+0.01)^2)-((t-0.01)^2))/2 -
A2 Physics | Post your doubts here
Isn't this question talking about the resonance frequency of the volume of air in the bottle or whatever container? o_O -
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A2 Biology | Post your doubts here
Suppose you have 4 observed results for 4 expected results; e.g. in a dihybrid genetic cross. First, subtract each expected result from the corresponding observed result: O - E. Then, square each of the numbers: ((O - E)^2). Then, divide each of these numbers by the corresponding expected... -
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Chemistry 42....how did it go?..expected GT
I AM NOT SURE but wasn't the order of reaction part 6 marks and mechanism's part 4 marks o_O if it wasn't then I lose less then 10 marks :p someone verify -
biology paper 5 29TH MAY !!!
my computer can't open the .docx file formats :( any other formats for those papers as .doc -
A2 Biology | Post your doubts here
In this experiment a plant has two types of leaves; sun and shade leaves, due to the fact that each leaf grows in different light intensities; light and dark(0 intensity). A good deal of sampling is used. The mean internode length is found by measuring the internode length between two leaves... -
Chemistry 42....how did it go?..expected GT
That reaction kinetics question was 10 marks right? -
Chemistry 42....how did it go?..expected GT
in the reaction kinetics question the first part was 6 marks and the second part 4 marks right? and the group digested in stomach is ester group which is hydrolysed OH group does not react with enzymes it is not possible to find hydration enthalpy of O2- ions as they react with water... -
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Mathematics: Post your doubts here!
Is it just me or is M2 actually easier than P3? :p -
A2 Mechanics (maths p5)
Total energy at O = K.E.=0.5(0.4)(2^2)=0.8 J Total energy at extension x: E.P.E.(elastic potential energy)=0.5(24/3)(x^2)=4(x^2) J G.P.E.(gravitational potential energy)=0.4(10)(-(3+x))= -12-4x J K.E.=0.5(0.4)(v^2)=0.2(v^2) J TOTAL ENERGY: 4(x^2) + (-12-4x) + 0.2(v^2). Conservation of... -
P3 urgent help needed
Can anyone please help me out here?...........:cry: -
P3 urgent help needed
Pure Mathematics 2 & 3: Page 235; example 16.5.3. I didn't understand why (|z+4|-|z-4|)^2 ≥0. Could someone please explain it to me? Thanks in advance. -
Biology MCQ thread..!!
i thnk its C this is because lysine is used to make collagen as structural proteins for bones and artery -
Biology MCQ thread..!!
Triglyccerides may contain ggreater no NUMBER of hydrogens, but are not necessarily more saturated with hydrogen,as in terms of percentage saturation per hydrocarbon tail. that's what i think. hy4v.PNG---this one I didn't understand myself. about Q28 i its probably something like there are four... -
chem p12...hmm that was a tough one !!!
I wrote A 1 & 2 I m sure rite NO may be slightly polar nd SO2 is polar -
chem p12...hmm that was a tough one !!!
I thnk boltzmann higher lower lower nd NO & SO2 are about dat question X, Y nd Z pollutant gases that react with (1/2)O2 in atmosphere