Physics: Post your doubts here!

[Unicorn]

okay thanks...
can these equations be applied in vacuum? places without air resistance and gravity?

as long as acceleration is constant

 

[Mohammed Ali]

i need the examiner report for Physics 9702 for november 2011.

 

[Most_UniQue]

Someone please answer this ASAP

 

[Silent Hunter]

Someone please answer this ASAP

View attachment 11435

what paper is this?

 

[raamish]

If the current of the bulb increases will it short. When the current will inc the resistance should decrease and it should not produce much heat energy so why does it short?

 

[lavanyamane]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_21.pdf
Q.5 (c)(i) , please?

ANYBODY? :'(

 

[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.