Physics: Post your doubts here!

[Jessie N.]

Oh,i am sorry.I will try again now.

It's okay XD no need to apologise at all

 

[Jessie N.]

Oh,i am sorry.I will try again now.

Hmmm I think I get it! Just give r a value. Any value of R used the answer will be the same XD!!

 

[periyasamy]

It's okay XD no need to apologise at all

Jessie,i have tried my best n i got 2w but i think the concept is wrong.

 

[periyasamy]

Hmmm I think I get it! Just give r a value. Any value of R used the answer will be the same XD!!

Ho ho ho,u r a genius.Btw just want to ask u isnt the p and r resistor become series like i draw above.Thanks ,an A+student prospect is here.

 

[periyasamy]

Ho ho ho,u r a genius.Btw just want to ask u isnt the p and r resistor become series like i draw above.Thanks ,an A+student prospect is here.

Sorry ,i think i got it .p and r is series.U showed in your drawing.Ha ha.Thanks.

 

[Jessie N.]

Ho ho ho,u r a genius.Btw just want to ask u isnt the p and r resistor become series like i draw above.Thanks ,an A+student prospect is here.

Erm I think no? Q and R can combine as 1 resistor and become series with p, pls refer to the diagram I draw.

 

[Jessie N.]

And the resistance of Q+R can be found by 1/R=1/RQ + 1/RR

 

[periyasamy]

And the resistance of Q+R can be found by 1/R=1/RQ + 1/RR

Thank u.

 

[Khadija_1234]

http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_s04_qp_1.pdf
Need help with Q6 please

 

[minie23]

I've done it before >w<
https://www.xtremepapers.com/community/attachments/image-jpg.32952/

Can you please elaborate on the last part ? I can't understand it

 

[minie23]

I've done it before >w<
https://www.xtremepapers.com/community/attachments/image-jpg.32952/

Can you please elaborate on the last part ? I can't understand it

 

[periyasamy]

Guys need help here.In this question i get it that the panel 1 and 3 is series together n parallel to 2 ,4.That can be seen by imagining the whole diagram as a circuit.But i dont get it why in option d has a resistor fortm object between points 1 and 3...Thank u.

Guys anyone can help me with this?Thank you a lot.

 

[Jessie N.]

Can you please elaborate on the last part ? I can't understand it

Which part you don't understand 0.0? I have added some explanations.

 

[Jessie N.]

Guys anyone can help me with this?Thank you a lot.

Is the answer D ? 0.0

 

[periyasamy]

Is the answer D ? 0.0

yes....

 

[minie23]

Which part you don't understand 0.0? I have added some explanations.

Got it ! Thanks
Can you help for Q9 ? :/

http://olevel.sourceforge.net/papers/9702/9702_s13_qp_12.pdf

 

[periyasamy]

Got it ! Thanks
Can you help for Q9 ? :/

http://olevel.sourceforge.net/papers/9702/9702_s13_qp_12.pdf

I will help u with it.F=mv-mu/t
so =>m/t can be formed using=(speed*density*area)----------------------------ms-1*kgm^-3*m^2===kgs-1
then----->mv-mu/t
so the value u obtain from multiplying all just now multiply it with the value ofvelocity--------kgs-1*(30-0)
I dont really know the right way but this way is ok as i coud do based on their units

 

[Jessie N.]

yes....

I think it is easier to understand if related to Kirchoff's law?

 

[Jessie N.]

 

[periyasamy]

View attachment 33158

Thank u a lot Jessie for all your help.Really appreciate it.

 

[wanderer100]

plz anybody! where can i find examiners report for paper1​

 

[wanderer100]

plz anybody! where can i find examiners repoet for paper1

 

[Talhakhan]

SOMEONE HELP PLS!!!
A projectile leaves the ground at an angle of 60 to the horizontal. Its initial kinetic energy is E. Neglecting air resistance, find in terms of E its kinetic energy at the highest point of motion.