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Recent content by supermagic

  1. S

    Further Math 2

    for question 3 u taking the moments about the point where the hemisphere and the inclined wall meets. then we have a x sin(alpha) x M = m x a x (1 - sin(alpha)) and we can deduce that from part (i) sin (alpha) < 1/(root5) we put sin(alpha) as 1/root5, the we can get the answer! and the...
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    Physics P42 answers

    oh dammm, ur answer in q2 is 300???? did u change cm^3 to m^3???? the volume was in cm^3 so u gotta change it!!
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    Physics P42 answers

    did u mean by question2? i am sure the question 3 is correct, the capacitance is 1800 micro farad. by using the gradient, so (18 x 10^-3) - (9 x 10^-3) then divided by 5v gives me 0.0018 farad, which is equal to 1800 farad. if u meant by q3, i am not sure, but the only way i could calculate...
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    Physics P42 answers

    well, it'e been 24hours and we can talk about it now !! here is some my answers plz check if it's correct :) - gonna post only calcalus based question, not qualitative questions. 1. the ratio was 4.0 times ten to the power of something , cant remeber, but it was positive.(not sure if it's...
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    A2 PHYSICS!!!!

    i have a2 physics exam in this may and i need some websites/notes to help me with revision can anyone give me recommended notes or websites?? thank you :)
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    discussion of physics ppr 2 AS

    intensity is proportional to ampliotude squred and frequency squred but frequency is constant so only take amplitude^2 at source the amplitude was 2mm and 6.0cm apart was 1.2mm therefore (2^2)/(1.2^2) = 2.78 not 3.33 idk how did u get 3.33 i guess u did (2^2)/1.2 = 3.33 ?
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    discussion of physics ppr 2 AS

    i guess between 45-47 for A ( they never go up above 47 in past papers) and 42-45 for B cuz A and B is not very much difference in marks but grade.
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    discussion of physics ppr 2 AS

    few alpha particles deviated by an angle of 10 degree and the second answer is extremely few (or fewer) alpha particles deviated by an angle of more than 90 degree
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    discussion of physics ppr 2 AS

    i actually worked out max voltage and minimum voltage ( max: 4.3v min: 3. sth,) so the max voltage is no more than 5 therefore if we use 5 voltmeter instead of 10 voltmeter, we could measure more specifialy. i am not sure tho i just guessed it wasn easy paper, kinda tricky
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    discussion of physics ppr 2 AS

    moment and torque i just guessed
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    discussion of physics ppr 2 AS

    oh yes i got exactly same answer as u! and i just guessed :P
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    discussion of physics ppr 2 AS

    just wondering the skeching the area, i tot the area between curves represent loss of enery such thermal energy! and similar question is in may/june 2002 paper 1 question24, if it's the area between the curves, there is no answer for the question so i doubt it!!
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    discussion of physics ppr 2 AS

    in M1 it's just simple question that's the answer, 14.3N and it says draw a vector triangle otherwise..... that means u had to draw a vector triangle.
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    discussion of physics ppr 2 AS

    really????? but normal force is nohing to do with the tension tension is jst mgsin35 where mgis 25N it's simple quiestion in M1
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    discussion of physics ppr 2 AS

    yeah, now gonna revise MCQ !!!!!!
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