Physics: Post your doubts here!

[hope4thebest]

w04 q.no 20 Ans A
How?

 

[stareaj]

yar its A, because, the distance between the charges does not change, so the work-done in moving the charge away or closer to each other is 0
remember.. work is only done when the distance 'between' the charges is changed

Please explain the above posted mcqs please

 

[TaffsAsLevel]

yar its A, because, the distance between the charges does not change, so the work-done in moving the charge away or closer to each other is 0
remember.. work is only done when the distance 'between' the charges is changed

Hi, would you mind solving november 2010 paper 12 QUEStion 8. It seems impossible please help

 

[gary221]

Physic As oct 2010 / 12 mcq 22 and 34
May 2011/12 mcq 15,16,24
Pleaseee

w04 q.no 20 Ans A
How?

ppr link?

 

[stareaj]

Hi, would you mind solving november 2010 paper 12 QUEStion 8. It seems impossible please help

Use s is equal to half at^2
ttwo equations form solve them simultaneously
First make of x to y
Then x to z

 

[stareaj]

Please explain mcq 34 of oct 2012/12

 

[stareaj]

Somebody please helppppppppp these are my problems don't have any link pls
Physic As oct 2010 / 12 mcq 22 and 34
May 2011/12 mcq 15,16,24
May 2011/ mcq 14,15
Oct2011/13 mcq 17,25
Oct 2011/12 mcq 26
May 2012/12 mcq 5

 

[daredevil]

Hi, would you mind solving november 2010 paper 12 QUEStion 8. It seems impossible please help

yaar seriously do this question some1 bcz i cant do it either

 

[TaffsAsLevel]

Use s is equal to half at^2
ttwo equations form solve them simultaneously
First make of x to y
Then x to z

WOOW THAANK YOU I can't believe it should be that simple, I mean, I used YZ XZ and XY with all forms of equation silly me

 

[stareaj]

yaar seriously do this question some1 bcz i cant do it either

I told method above

 

[stareaj]

WOOW THAANK YOU I can't believe it should be that simple, I mean, I used YZ XZ and XY with all forms of equation silly me

Pls help me !!!
Somebody please helppppppppp these are my problems don't have any link pls
Physic As oct 2010 / 12 mcq 22 and 34
May 2011/12 mcq 15,16,24
May 2011/ mcq 14,15
Oct2011/13 mcq 17,25
Oct 2011/12 mcq 26
May 2012/12 mcq 5

 

[TaffsAsLevel]

Pls help me !!!
Somebody please helppppppppp these are my problems don't have any link pls
Physic As oct 2010 / 12 mcq 22 and 34
May 2011/12 mcq 15,16,24
May 2011/ mcq 14,15
Oct2011/13 mcq 17,25
Oct 2011/12 mcq 26
May 2012/12 mcq 5

I think OCT 2010 question 22 would be A because you will be weighing smaller mass so the less stiff spring will need to act (more sensitive) that's why its on top so that it is first to be determined by the balance, then when it is heavier the string will stretch and it will be too much so the stiffer one at the bottom will help out to adjust it

for question 34 R=rhoL/A so that V/I=rhoL/A now we found out that gradient is Irho/A because the graph is V against x where L is x rho increases so gradient increases therefore B

the rest are too many please provide link =(

 

[white rose]

Use s is equal to half at^2
ttwo equations form solve them simultaneously
First make of x to y
Then x to z

i found the acce for both now wht do i do...i m nt getting da ans...if u explain plzzz

 

[daredevil]

i found the acce for both now wht do i do...i m nt getting da ans...if u explain plzzz

acce for both? how can u find that? the speed for each was constant. acceleration occurred from one motion to the other only

 

[white rose]

acce for both? how can u find that? the speed for each was constant. acceleration occurred from one motion to the other only

but he said to make 2 equations thats why....
can u shw me the calculation..

 

[TaffsAsLevel]

but he said to make 2 equations thats why....
can u shw me the calculation..

40=12v+72a
80=18v+162a let v subject find a

s=ut+1/2 at^2

 

[ahmed abdulla]

can some one plz do q 10 ,16 ,21 ,39
of oc/nov 2012 va'12

 

[white rose]

40=12v+72a
80=18v+162a let v subject find a

s=ut+1/2 at^2

sorry but i m nt still getting....wht 40=12v+72
frm which equation r u getting this?

 

[Oceanic]

oct/nov 12 paper 12 question 3
what is the logic ????

 

[Lyfroker]

Q4, 5, 15
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w11_qp_11.pdf