Physics: Post your doubts here!

[janasalem]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w10_qp_21.pdf

question 2b(ii) does the horizontal distance also decrease due to air resistance ?

 

[princess Anu]

In Q45

when the mass arrives at Q won't the final velocity be zero?

 

[princess Anu]

 

[princess Anu]

Why is B wrong?

 

[princess Anu]

q10
why will the velocity stay the same at Y even though the mass of the truck is decreasing?

 

[princess Anu]

.

 

[princess Anu]

.

 

[learner95]

I need solved MCQS and Structured questions of Topic Kinematics, from year 1973-2003
Do it Asap. It's urgent

 

[RahatMT]

mass is 0.001 kg not 1.3 kg

 

[janasalem]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s11_qp_21.pdf
question 2b(ii)
when i calculated the percentage uncertainty i used the full answer of the percentage but my actual uncertainty was differnent. in the marking scheme they wrote each percentage uncertainty with 2 significant figures, will it be wrong if i used more than 2 ?

 

[XRDXRD]

Hi i need help on Q36

9702/13/O/N/13

 

[Biocalife]

Need help on Nov 2008 Paper 5. Part (d) and (e) how to find uncertainties form e/m and B ?? whats the logic behind taking delta(gradient)/gradient I dont understand ?? Could someone explain it

 

[Awesome12]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s13_qp_11.pdf
Q 14. Can't quite understand why the answer is B and not A.

If you don't understand the shape of the graph, then 'plug-in' some values and find the corresponding answers.

Lets just say that the moment about the anti-clockwise direction is 12 Nm. So the possible values of x and their corresponding values of F are:


x | F

2 | 6

3 | 4

4 | 3

6 | 2


Now plot them on a graph.

As you can see, if you join the points via a curve, then the shape of the curve will be the same as the shape of the curve in option B

 

[Awesome12]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s10_qp_23.pdf

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s10_ms_23.pdf



Question 3 (c) (i) and (ii)

As simple as they may seem, I just don't get the concept used here. Could someone please explain it along with the concepts to be utilized. Thanks

 

[adarsha]

guys help again

calculate how much gravitational potential energy is lost by an aircraft of mass 80000 kg if it descends from an altitude of 10000 m to an altitude of 1000m. what happens to this energy if the pilot keeps the aircraft's speed constant?


so in this question first i calculated gpe when the aircraft was at 10000 m and calculated gpe 2 when the aircraft was at 1000 m and subtracted both gpe.... the answer should have been the difference but for some reason the answer does not match... the answer is 7.1 * 10 ^9 J. I only need the numerical part thanks in advance

 

[Awesome12]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s06_qp_1.pdf

Question 17, anyone?

Thought blocker

 

[AssassinUnity]

how to find uncertainty in may /June paper5 2007 Q2. plzzzzzzzzzz heelpppppppppp

 

[aniket goldstar]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w13_qp_52.pdf

Any work solution for this paper guys?

 

[XRDXRD]

Hi I would like to know the experimental setting for 9702/52/M/J/12 Question 1

and Question 1 ) of 9702/51/M/J/12

 

[Amnaaa]

I would like to know the experimental setup for http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w09_qp_51.pdf
question 1
Anyone?