Physics: Post your doubts here!

[Most_UniQue]

what paper is this?

http://www.xtremepapers.com/papers/...and AS Level/Physics (9702)/9702_w07_qp_2.pdf

cn u asnwer it plz?

 

[raamish]

how do we take out the terminal p.d

 

[Unicorn]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w07_qp_2.pdf

cn u asnwer it plz?

don't how to draw this for you as I can't do it on the computer but the amplitude will be less and phase difference is 5 blocks apart

since 30 blocks = 360

 

[raamish]

ok but do u have the answer or ur asking cause u NEED an answer?

i need the answer

 

[Most_UniQue]

don't how to draw this for you as I can't do it on the computer but the amplitude will be less and phase difference is 5 blocks apart

since 30 blocks = 360

Ya I know and I have drawn it. I wanted to compare it. Right its 5 blocks away and my amplitude was 7.

 

[littlecloud11]

Someone please answer this ASAP=quote]


Here you go-
Not the most consistent of graphs, courtesy of my trembling hands

 

[gamer_boy]

ANYBODY? :'(

on P , arrow will be towards right, for N arrow will be towards left.

 

[Goku]

Can someone please tell me how do you solve questions in which uncertainties are given? :/

 

[raamish]

In a filament lamp why does resistance increase when the voltage increases?

 

[Most_UniQue]

Tnx i hv drawn the same graph

 

[Goku]

M/J - 09 - p21 ---> Question 7 Part (a)
How the crap do you do this? :O
someone please help

 

[fatima 007]

Definition sheet for As physics pleaseeeeeeee? I'm freaking out. Help

 

[leosco1995]

ANYBODY? :'(

P and N are both in the horizontal direction, opposite to each other, with P facing the left and N facing the right (because P is positively charged and the direction of the electric field is to the right, so it would obviously go to the left).

 

[leosco1995]

M/J - 09 - p21 ---> Question 7 Part (a)
How the crap do you do this? :O
someone please help

(a) (i) A & C

Treat A to C as a straight line and forget everything else. The resistance will only be R.

(ii) B & X

The total resistance in parallel here is R/2, so the resistance at any point there is R/2.

(iii) This is equal to the total resistance in series + total resistance in parallel, that's 2R + R/2 = 2.5R.

 

[lavanyamane]

on P , arrow will be towards right, for N arrow will be towards left.

Oh right! Thank you

 

[lavanyamane]

Oh yes, the electric field. How stupid of me x_x Thank you! Could you help me with this one?
http://www.xtremepapers.com/papers/...nd AS Level/Physics (9702)/9702_s10_qp_22.pdf Q.3(c)

 

[Goku]

(a) (i) A & C

Treat A to C as a straight line and forget everything else. The resistance will only be R.

(ii) B & X

The total resistance in parallel here is R/2, so the resistance at any point there is R/2.

(iii) This is equal to the total resistance in series + total resistance in parallel, that's 2R + R/2 = 2.5R.

Ahhh my gosh! Thankyoooooooooou!!! :'D

 

[Goku]

Definition sheet for As physics pleaseeeeeeee? I'm freaking out. Help

Here you go

 

[Wanzi21]

how do you find Q 2 part b???

 

[gamer_boy]

Oh yes, the electric field. How stupid of me x_x Thank you! Could you help me with this one?
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_22.pdf Q.3(c)

well its easy . look, continue the line of sphere B till the time (t) where the graph of A starts to descend. ! then ,contiune the graph by ascending the line wid constanst positive gradient , now the tricky part is , that till where the gradient must b kept constant, for this, u have to consider the change in velocity of sphere A , like, it changed from 6 to -3 which makes it 6+3=9 (change in momentum) , same way , sphere B starts wid Momentum -4,
so by keeping constant the change in momentum, we can calculate the final momentum of sphere B ,
X-(-4)=9 , answer will b 5 , so the graph will ascend till the momentum is 5 , after which it will continue as a straight line wid zero gradient , hope u got it