Physics: Post your doubts here!

[..sacrifice4Revenge..]

4 hours ???????
I have to go for walk ._.

You have an exam tomorrow nigga, -.-'
Anyways, was jk, wont need any help anymore unless something exceptional comes up, have to revise already done pprs.

 

[Thought blocker]

You have an exam tomorrow nigga, -.-'
Anyways, was jk, wont need any help anymore unless something exceptional comes up, have to revise already done pprs.

 

[Thought blocker]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w03_qp_1.pdf

Q17,40

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w02_qp_1.pdf

Q35

IDK, Shits...

 

[Suchal Riaz]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w03_qp_1.pdf

Q17,40

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w02_qp_1.pdf

Q35

17:
power = total energy / time = Ep+Ek / t
40:
k-capture is opposite of Beta decay. it means that its mass will remain same but it's proton number will increase

 

[Suchal Riaz]

IDK, Shits...

good luck for tomorrow. sorry for not helping you guys today. i was hanging out with my friends. trying to chill out

 

[Thought blocker]

good luck for tomorrow. sorry for not helping you guys today. i was hanging out with my friends. trying to chill out

No probs at all... everything is solved darling :*

 

[Suchal Riaz]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w03_qp_1.pdf

Q17,40

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w02_qp_1.pdf

Q35

if you have any doubt in potentiometers then please read coursebook it explains everything very nicely.
for this question:
now there is less p.d across wire, so less p.d per unit length.
it means that more wire will be enough to balance the same emf of battery.

 

[Suchal Riaz]

any questions everybody. quickly ask me as many as you can because i am going to sleep after 30 minutes.

 

[Thought blocker]

if you have any doubt in potentiometers then please read coursebook it explains everything very nicely.
for this question:
now there is less p.d across wire, so less p.d per unit length.
it means that more wire will be enough to balance the same emf of battery.

I dont get XY part ._.

 

[Rockstar RK]

9702/12/M/J/10 Q-9

 

[Rockstar RK]

any questions everybody. quickly ask me as many as you can because i am going to sleep after 30 minutes.

9702/12/M/J/10 Q-9

 

[Thought blocker]

9702/12/M/J/10 Q-9

 

[Rockstar RK]

View attachment 45293

WE HAVE TO FIND IT FOR T=3S AND ACCELERATION IS NOT CONSTANT!!!!!!!!!!!!!!!!!!!!!

 

[Rockstar RK]

any questions everybody. quickly ask me as many as you can because i am going to sleep after 30 minutes.

9702/12/M/J/10 Q-9 PLs solve dis 1

 

[Suchal Riaz]

I dont get XY part ._.

when the resistance of variable resistor increase it's PD increase because V=IR
so the p.d across XY decrease as V1=R1/(R1+R2) * E
so the p.d per unit length will decrease
so it must more towards right to make the same amount of p.d as it did before.

 

[Thought blocker]

WE HAVE TO FIND IT FOR T=3S AND ACCELERATION IS NOT CONSTANT!!!!!!!!!!!!!!!!!!!!!

Han so make a tangent and it should touch the point at 3s on graph as I did... and find the gradient of the tangent you'll get acc at 3 sec...

 

[ahmed faraz]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s11_qp_13.pdf Q 15 Plz Full Explaination

 

[Thought blocker]

9702/12/M/J/10 Q-9 PLs solve dis 1

I solved na nai ayi kya shamajh ?

 

[Thought blocker]

when the resistance of variable resistor increase it's PD increase because V=IR
so the p.d across XY decrease as V1=R1/(R1+R2) * E
so the p.d per unit length will decrease
so it must more towards right to make the same amount of p.d as it did before.

ty

 

[Suchal Riaz]

9702/12/M/J/10 Q-9

at time t=3 draw a tangent and find it's gradient. thought blocker was using correct method.