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  1. Dr Death

    How did the physics 22 paper go?

    heat energy i think. a was 1 b was 0
  2. Dr Death

    How did the physics 22 paper go?

    I got the distance by taking distance till v = 0 and multiplied by 3. I don't think it was correct tho.
  3. Dr Death

    How did the physics 22 paper go?

    I was in a hurry at the end as I thought it was a projectile question and left it till the last. I got 15.something but don't count on it.
  4. Dr Death

    How did the physics 22 paper go?

    So how did it go? The first question; the base units for resistance are Ω = kg m^2 s^–3 A^–2. Can someone please remind me the 2nd question first part as i seem to have forgotten it. Also is the distance = 20 something ( can't remember)
  5. Dr Death

    ...............................................

    Please delete this thread
  6. Dr Death

    ..........................................................................................

    Please delete this thread
  7. Dr Death

    Computer Science (9608)

    I don't recall seeing a single Cambridge computer paper with state transition diagrams or decision tables or flip-flops .
  8. Dr Death

    Computer Science (9608)

    Me. Taking A and AS. Did all specimen papers. Also check out AQA paper 3's and 4's. They have state transition diagrams, decision tables etc which are all required.
  9. Dr Death

    How did Maths 12 go? No discussion

    justpastpapers.com first link - paper with answers By the way lost abt 12 marks:(:(:(:(
  10. Dr Death

    Mechanics 9709 P42 (GT)

    I got one prob. Last question can anyone tell me whether it'll be a problem. I got meu = 0.343 instead of meu = 0.341. That's a 0.002 difference. Is it a problem?
  11. Dr Death

    Mathematics: Post your doubts here!

    How to do this? We get x and y on two sides.
  12. Dr Death

    Physics: Post your doubts here!

    When ball is sliding down the slope then as there is acceleration, velocity is increasing (first part of graph). When ball is going on horizontal surface, constant velocity. When ball collides with wall then direction of velocity is changed. As inelastic K.E is lost. Velocity is lost. Ball...
  13. Dr Death

    Physics: Post your doubts here!

    No Kinetic energy is lost in a perfectly elastic collision Therefore Speed of approach = Speed of projection Momentum AND total energy is ALWAYS conserved
  14. Dr Death

    Deceased

    Deceased
  15. Dr Death

    Physics: Post your doubts here!

    It is not required. Just get the volume (of whole square) and cube root it.
  16. Dr Death

    Mathematics: Post your doubts here!

    When is equation b² - 4ac used?
  17. Dr Death

    Physics: Post your doubts here!

    Lemme explain. At instance of release, it begins to slide. Question mentioned that the wall is rough and ground is frictionless
  18. Dr Death

    Physics: Post your doubts here!

    4 th question?
  19. Dr Death

    Physics: Post your doubts here!

    Velocity is not changing direction. If it is, then the ball should NOT be traveling with constant velocity. It should be decelerating. If you are taking the displacement from the start position, and the ball is continuously rolling, the displacement should only increase. NOT decrease. If I...
  20. Dr Death

    Physics: Post your doubts here!

    Use equation d sin θ = n λ λ = 590 nm n = 2 θ = 43 d is answer.
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