Physics: Post your doubts here!

[amal sharkawi]

Q.33 p.11 J/10
Can anyone answer this plz

 

[princess Anu]

part (b) Is the sketch correct?

 

[amal sharkawi]

Q.5 p.11 N/10
Plz

 

[princess Anu]

Why is the moment of force F equal to the torque of the couple?

 

[amal sharkawi]

Q.9. P.11 N/10 plz

 

[Bba321]

Please help me with

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s09_qp_4.pdf

Qs 11 part b iii

And

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w09_qp_42.pdf

Qs 10
Thanks

 

[princess Anu]

help!!

 

[Hijab]

can someone answer the following question... I would really be grateful
Q;A 60 W light bulb converts electrical energy to visible light with an efficiency of 8%. Calculate the visible light intensity 2 m away from the light bulb.

 

[amal sharkawi]

answer the question plz

 

[Xylferion]

help!!View attachment 51130

Hey there, Here's my way of solving it, I can't really think of a simpler method but it works so hope it helps.

 

[manya]

can some one help me with this.
the answer is A But that is only possible when ball is moving up but in this case they are not telling in which direction it is moving

 

[FrostBite92]

Help me with this question pls. The angle is found by (162-136)/2. Why is that??

 

[Mahnoorfatima]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w13_qp_13.pdf
Question 16???
And in question 33, I get that the resistance increases in a thinner wire but why does the current remain same? BY V=IR shouldn't the current decrease by increasing resistance as they're inversely proportional??
AND i don't get Question 38 AT ALL!

 

[Mahnoorfatima]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w13_qp_12.pdf
Question 33., 37

 

[amal sharkawi]

plz answer this

 

[The Sarcastic Retard]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w13_qp_12.pdf
Question 33., 37

https://www.xtremepapers.com/community/threads/physics-post-your-doubts-here.9860/page-517

 

[Mahnoorfatima]

https://www.xtremepapers.com/community/threads/physics-post-your-doubts-here.9860/page-517

Thats W12 QP 13 whereas my question is from W13 QP 12

 

[The Sarcastic Retard]

Thats W12 QP 13 whereas my question is from W13 QP 12

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w13_qp_12.pdf
Question 33., 37

CHECK YOURSELF!

 

[a_wiserME!!]

can someone pls explain this?? TIA

 

[Mahnoorfatima]

CHECK YOURSELF!

OH GOD. The page you quoted is of Oct/Nov 12 paper 13. MY questions are from O/N paper 13 QP 12.