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OMG! Physics p22!!!

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samir said:
exactly no A* in AS levelll.
man i did electricity question in 3 mins......holy crap..got 8.5% and afterwards
but then wat abt the next questions!!!!! how in the world did u do them !!!
Man fst a fall i wud like u to noe that Percentage reduction In power is 4.3%,(10/230*100),
 
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What in the world was MEV ?? FFS i never even heard of it.. !!! I put an imagniary value and did the qs and claculated my own velocity :mrgreen: :mrgreen:

Ya percentage was 8.5,, and Fa = -Fb... cant comment more.. DOnt know what will happen =s
 
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I wa sso nervous in this paper... though i would be leaving some partrs but still managed to fo it on time.. Huh !!! I am not so sure about my momentum graphs !!!:S
 
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and for the final momentum...was it +5 for sphere B after collision so i extended the line first horizontally and then north east to 5.....??????

hw cum 4.3%/////wasnt it (230)^2 - (220)^2 /(230)^2 x100% = 8.5%
 

Xam

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wasiqss said:
samir said:
exactly no A* in AS levelll.
man i did electricity question in 3 mins......holy crap..got 8.5% and afterwards
but then wat abt the next questions!!!!! how in the world did u do them !!!
Man fst a fall i wud like u to noe that Percentage reduction In power is 4.3%,(10/230*100),

ya mine was also coming 4.3
 
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wasiqss said:
samir said:
exactly no A* in AS levelll.
man i did electricity question in 3 mins......holy crap..got 8.5% and afterwards
but then wat abt the next questions!!!!! how in the world did u do them !!!
Man fst a fall i wud like u to noe that Percentage reduction In power is 4.3%,(10/230*100),

Well no... Power is directly proportional to volatage square not voltage.. so the ans was : (230^2 - 220^2 / 230 ^2) x 100 .. I think that is how it had to be done :|
 
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it was percentage reduction in POWER nt simply VOLTAGE....so we had to consider....P = V^2 /R..and the question said that R remained constant!!!
 
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Can anyone tell me what was the answer to the photo wala qs ??? !! the 2nd part the time interval during wich the fotograph was taken ??
 
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beacon_of_light said:
it was percentage reduction in POWER nt simply VOLTAGE....so we had to consider....P = V^2 /R..and the question said that R remained constant!!!
agreeed
 
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beacon_of_light said:
mz23 said:
i think A should be at not more than 38...it was 38 for novemebr 22 and i found that one easier than this one...

38 would be too low...nw A is on 80%..so it can't go so low...40-43...maximum!!!
Man ,A is still as it is,A has same level,A * is introduced just to level and match the standard with Uk students,A will be All the same,A* is introduced,coz some unis in Uk demand A*s in Phy amd maths
 
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okey...
well my photograph question went wrong..in the time interval part ..i made a blunder..for the first part it was 0.156s...as far as i remember
 
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ashhadazam said:
Can anyone tell me what was the answer to the photo wala qs ??? !! the 2nd part the time interval during wich the fotograph was taken ??[/quote
2nd part's answer was .03
 
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beacon_of_light said:
okey...
well my photograph question went wrong..in the time interval part ..i made a blunder..for the first part it was 0.156s...as far as i remember
In 1st part,it was 0.4,in second part it was .03
 
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exactly 0.4 and 0.028 i got neways thats awesome wat more is awesome beacon of light is that i got center as 0.135 and V as 0.675.....similar i guess....hmm do u think we are right...and yea the next 2 marker i pretty much guessed in theory god noes wat......ughh...
 
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hey in finding young moudoulus do v have to take highest value of stres nd strain or frm staraight line where it endz..tel me..
 
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