Physics: Post your doubts here!

[Wkhan860]

Why is it C?

 

[qdkhan]

Can someone please explain Q16 in this paper?
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w07_qp_1.pdf
N also Q15
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s10_qp_11.pdf

 

[slisjunknown]

How come Physicist didnt see my question? i dont noe how to tag people....but pls answer my doubt
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w13_qp_21.pdf
Q2(a)...why isnt it 240m?

 

[Wkhan860]

How come Physicist didnt see my question? i dont noe how to tag people....but pls answer my doubt
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w13_qp_21.pdf
Q2(a)...why isnt it 240m?

Lol if u want to tag ppl add "@" nd thn write their name

 

[slisjunknown]

Lol if u want to tag ppl add "@" nd thn write their name

Thnks...can u solve my question?

 

[slisjunknown]

Physicist
pls answer my doubt
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w13_qp_21.pdf
Q2(a)...why isnt it 240m?

 

[Sarosh Jameel]

PLZ SOMEONE HELP WITH Q3 part (b)(ii)

 

[A*(a*)]

AS level topical MCQs + Theory upto 2014 including ALL variants!

 

[ZaqZainab]

PLZ SOMEONE HELP WITH Q3 part (b)(ii)

s=ut+o.5at^2
u will be 0 as it says moves from REST
s=0.5at^2
rearange the equation to make a the subject
2*s/t^2=a
and the grainet is y/x that means d/t^2
s is distance and so is d
so gradient=s/t^2
2*gradient=a
I hope it helped

 

[princess Anu]

this question...

 

[princess Anu]

.

 

[Sarosh Jameel]

s=ut+o.5at^2
u will be 0 as it says moves from REST
s=0.5at^2
rearange the equation to make a the subject
2*s/t^2=a
and the grainet is y/x that means d/t^2
s is distance and so is d
so gradient=s/t^2
2*gradient=a
I hope it helped

Thanks a bunch !!!

 

[Sarosh Jameel]

Someone help me with this : http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_s07_qp_2.pdf

Q4 part d

 

[robinhoodmustafa]

this question...

Do you visit Sir Faisal ? because of the serial no "11" (i also have this worksheets with me)

btw here is the solution.

 

[robinhoodmustafa]

.

Um.

Just Add "In the direction of the force acted" after writing product of mass and velocity... talking about Part a "momentum def"

now in part b.
Just write the "rattaa" howa 2nd law
If an external unbalanced force acts on an object it produces acceleration .this acc is directly proportional to the applied force.

than he is asking to show impulse is proportional to (means equal to) change in momentum

F=ma (2nd law)

break ... a = v-u/ t
substituite the break form of a in f=ma equation

In end you will get this

Ft = M(v - u )

and M (v - u) is the change in momentum so "Delta P"

 

[princess Anu]

Do you visit Sir Faisal ? because of the serial no "11" (i also have this worksheets with me)

btw here is the solution.

View attachment 49969

Haha yeah
Thanks

 

[MiniSacBall]

Qp: http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w07_qp_2.pdf
Ms: http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w07_ms_2.pdf
Q6 b.
According to the mark-scheme the potential difference across the cable is 5V.
How????

 

[The Sarcastic Retard]

Qp: http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w07_qp_2.pdf
Ms: http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w07_ms_2.pdf
Q6 b.
According to the mark-scheme the potential difference across the cable is 5V.
How????

230V - 225V = 5V

 

[Sarosh Jameel]

HELP ME WITH THIS : http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_22.pdf

Q2 part b

 

[alfyyule]

Asalamu Aleykum, could you please help locate answers for the physics classified papers 1 and papers3 igcse as well as electricity 1 and 3 prepared by Preeti Manoj? I'll highly appreciate. Thanks.