Physics: Post your doubts here!

[Thought blocker]

papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w10_qp_11.pdf
please help with question 9

Here

 

[Charlotte20102013]

just convert it into years and see what ans you obtain

Right... Silly me.. Hahah! Thanks again!

 

[princess Anu]

this?

 

[Rohaan Nadeem]

Power = Work/ time......(1)
Work = Force*distance.....(2)

(1) => power = Force*speed
power= (1000+10000) *.5 = 5.5 kW

You need to add the 1000 N force required to overcome resistive forces.

 

[princess Anu]

this too ,please!

 

[princess Anu]

 

[princess Anu]

 

[princess Anu]

 

[princess Anu]

Q11,12 ,13 please. Classified Topic 6 page 74

 

[princess Anu]

can u solve MCQ 8 and 15 0f the same topic pleasee

 

[Sewz44]

At the exam do we get a formula sheet for AS physics?
I don't know that that's why I asked.

 

[Sewz44]

Thanx for da help

 

[Enferno]

At the exam do we get a formula sheet for AS physics?
I don't know that that's why I asked.

You get a formula sheet, but it doesnt have all formulas. You can check it, its is on the second and third page of each past paper

 

[Enferno]

For Q3 Is the life span of a man really 2x10^9 s??? WHy isn't the answer D?

2x10^9 is 63.3 years
the real average life span of a man is 68.2 years which is 2.15x10^9. Hence it is incorrect by a factor of LESS THAN 100 not MORE THAN 100

 

[Mahnoorfatima]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_11.pdf
Question 6 12
And in question 14 why are we adding F? Isn't it supposed to be like this:
Fnet=ma
ma=mgsintheta - F ?

 

[TheValiantGuardian]

Q7 somebody pls!

 

[Sewz44]

You get a formula sheet, but it doesnt have all formulas. You can check it, its is on the second and third page of each past paper

Thank you....

 

[Wolfgangs]

"Importance of critical damping in car suspension"

Can someone give me the points needed for that?

 

[Sophia1551]

Does anybody by any chance have the AS OCR A Physics G481: Mechanics paper (or mark scheme) from May 2014? If so, could you please upload it.

Much appreciated.

 

[princess Anu]

Please solve me these whenever you get free
All of these are from Classified..
Pg 48 MCQ 54 Conservation of momentum
Pg 33 Q35cii
pg 36 mCQ 46 and 52
Q14 pg 29
Thank you