Biology; Chemistry; Physics: Post your doubts here!

[TheLeagueofShadows]

Does anybody have the soft copy of the Mark Scheme for May/June 2oo3 of Chemistry?

 

[Saad Mughal]

Does anybody have the soft copy of the Mark Scheme for May/June 2oo3 of Chemistry?

Examiner reports are there. Not mark schemes. Examiner reports have the answers if you want it here it is:
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Chemistry (5070)/5070_s03_er.pdf

 

[zohra`xo]

Adding more carbon to steel makes it more brittle, right?

 

[TheLeagueofShadows]

Adding more carbon to steel makes it more brittle, right?

Yeah, More strong and more brittle.

 

[TheLeagueofShadows]

T

Examiner reports are there. Not mark schemes. Examiner reports have the answers if you want it here it is:
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Chemistry (5070)/5070_s03_er.pdf

Thanks

 

[hafsa saleem]

can any1 tell me how these can be solved(MCQs no 9,12,6)

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w12_qp_11.pdf

 

[hafsa saleem]

plzzzzzzzzzzzzzzzzzzzz help me

 

[ZaqZainab]

can any1 tell me how these can be solved(MCQs no 9,12,6)

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w12_qp_11.pdf

Question 9- find the actual length first
9-2=7cm "2 from the graph!"
7+1= 8
Question 12 use the equation P1V1=P2V2

 

[TheLeagueofShadows]

can any1 tell me how these can be solved(MCQs no 9,12,6)

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w12_qp_11.pdf

For 9, look at the graph to get the readings. At 200 g mass, the extension was 2 cm. And use the diagram to find the original length of spring(9-2) 7. Now, at 100 g mass the graph shows extension of 1 cm. Add it to original value so ans would be 8 I think.

 

[ZaqZainab]

Question 9- find the actual length first
9-2=7cm "2 from the graph!"
7+1= 8
Question 12 use the equation P1V1=P2V2

qUESTION 6 THE Frictional FORCE of the road is towards the left you are sure about that and the Tyre is opposite
see the way the road

 

[ZaqZainab]

see 200 go up the line to the y axis

 

[hafsa saleem]

th

For 9, look at the graph to get the readings. At 200 g mass, the extension was 2 cm. And use the diagram to find the original length of spring(9-2) 7. Now, at 100 g mass the graph shows extension of 1 cm. Add it to original value so ans would be 8 I think.

thnx a lot

 

[ZaqZainab]

I guess i did not help

 

[hafsa saleem]

I guess i did not help

no no u did help a lot.u can't imagine the number of blessings blurted from my mouth for u .thnxxxxxxxxxxxxxxxx a lot .

 

[hafsa saleem]

an experiment to verify principle of moments?

 

[hafsa saleem]

wat about mcq 8 of the same paper?

 

[ZaqZainab]

an experiment to verify principle of moments?

http://www.docstoc.com/docs/33425346/Experiment--Testing-the-principle-of-moments this might help

 

[hafsa saleem]

thnx once again.u r 2 nice

http://www.docstoc.com/docs/33425346/Experiment--Testing-the-principle-of-moments this might help

 

[ZaqZainab]

wat about mcq 8 of the same paper?

It can not be C if it was C then the Weight would not have been added it should be right of C so only D is there

 

[hafsa saleem]

why should it be at the right of c

It can not be C if it was C then the Weight would not have been added it should be right of C so only D is there