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  1. A

    Physics: Post your doubts here!

    It reaches terminal velocity after falling about 10m so we can find how long it takes to fall 10m from the equation s=ut+0.5gt^2 s=10m ut=0 since initial velocity is zero g=9.81 therefore t is about 1.43 s so it reaches terminal velocity(7ms^-1) at about 1.43 s
  2. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_22.pdf Q2 b Can anyone please explain the sketch
  3. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w10_qp_22.pdf Q2 b Can anyone please explain the sketch
  4. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s11_qp_22.pdf need help!!! Q2 ii) 2.
  5. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s11_qp_23.pdf Can anyone PLEASE explain Q6 b and can anyone please tell me how to do these kind of questions
  6. A

    Physics: Post your doubts here!

    s Sorry, but the question you explain was from variant 22 of the same year so can you please tell the difference between Q3 b ii) from http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s12_qp_22.pdf and Q2 b i) from...
  7. A

    Physics: Post your doubts here!

    Can you please explain the difference between this question and Q2 b i) from http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s12_qp_23.pdf
  8. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s12_qp_22.pdf can anyone please explain Q3 b ii)
  9. A

    Physics: Post your doubts here!

    for q2 bi)
  10. A

    Physics: Post your doubts here!

    i) Narrower the slits, because wavelength of light is less than microwaves ii) decrease the distance between the slits, which will increase the fringe width and hence fringes will be more clear.
  11. A

    Physics: Post your doubts here!

    since "d" and sin(θ) are constant we can answer this question only by substituting values in "n" an "λ" In part ii) we have n=2 and λ=625 nm so we can find the value of constant nλ which will help us to answer this question nλ= 2*625=1250 Now lets put different values of n, when n=1 we get...
  12. A

    Physics: Post your doubts here!

    Can you please help with Q6 c ii) of the same paper
  13. A

    Physics: Post your doubts here!

    sorry. Q6 c ii)
  14. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s12_qp_22.pdf please help Q6 b ii)
  15. A

    Physics: Post your doubts here!

    Describe an experiment to determine the wavelength of sound in air using stationary waves. Include a diagram of the apparatus in your answer.
  16. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w12_qp_21.pdf can anyone please explain Q4 b iii)
  17. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s13_qp_23.pdf can anyone PLEASE explain Q5 b iii)
  18. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s13_qp_23.pdf can anyone PLEASE explain Q5 b iii)
  19. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_s13_qp_22.pdf Can anyone please explain Q5b iii)
  20. A

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w13_qp_21.pdf Can any please explain Q5 b
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