Physics: Post your doubts here!

[Hadi Murtaza]

Pf cant be less than Pi in inelastic... don't you think so ? Or I am wrong ?

it can

 

[hamzashariq]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf
Q38.

 

[Thought blocker]

it can

Then I am wrong ?

 

[Hadi Murtaza]

Then I am wrong ?

Pf cant b less than Pi in elastic collision

 

[Thought blocker]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s12_qp_12.pdf
Q38.

Here, check all the total reistance in all of the network...
YOu'll see, in 1st resistance would be 0.4 and in last it would be 0.7 so C

 

[Thought blocker]

Pf cant b less than Pi in elastic collision

Oh... ty

 

[Hadi Murtaza]

Oh... ty

welkum, now where is ur surprise ?

 

[Thought blocker]

welkum, now where is ur surprise ?

Idk, but you'll get it by this week

 

[Hadi Murtaza]

Idk, but you'll get it by this week

Dis week ? cant w8 dat long

 

[Thought blocker]

Dis week ? cant w8 dat long

uumm... sorry for the delay.

 

[hamzashariq]

Here, check all the total reistance in all of the network...
YOu'll see, in 1st resistance would be 0.4 and in last it would be 0.7 so C

But I can't understand how to measure the resistance of 2.

 

[Thought blocker]

But I can't understand how to measure the resistance of 2.

Got it ?

 

[hamzashariq]

Got it ?

View attachment 44814

haha yeah thanks.

 

[Ahmedlool]

guys can someone help me out? how do u find the percentage uncertainty in the practical? like i dont know how

 

[Autumngirl]

Can someone please explain how to solve q18 MJ2013 P11?

 

[Hijab]

Can someone please explain how to solve q18 MJ2013 P11?

I hope it helps

 

[Hijab]

Oh... ty

I am sorry for bothering u again.. But could u explain this question to me??
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w10_qp_12.pdf

 

[redd]

guys can someone help me out? how do u find the percentage uncertainty in the practical? like i dont know how

Take two measurements and take their difference, divide the diff by 2 and the divide this all by avg of ur measurements.

 

[Autumngirl]

I hope it helps

Oh thank you but I still don't get how density x area x speed gives the mass of the air hitting the blades.

 

[Thought blocker]

thank you soooo sooo much again! can u also do question 35 from http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s13_qp_11.pdf (s13 variant 1)