• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. U

    Pysics Paper 31 (Discussion only)

    The gradient is correct
  2. U

    Pysics Paper 31 (Discussion only)

    Yea , that's what i did
  3. U

    Physics exam 31 came from heeeeeel!!!!! What is wrong CIE

    Re: Physics exam 31 came from heeeeeel!!!!! What is wrong CI I wrote it was shiny :D. Wrote it while the invigilator was pulling the paper from me. I think the stomach is either dark except for a certain point or the light coming from the fibre optic is being reflected inside and illuminated shit.
  4. U

    Pysics Paper 31 (Discussion only)

    But i mean , doesn't it make sense that if we have a 6v supply and we want the heater to get 3.6 then the resistor should be getting 2.4. It's like a potential divider.
  5. U

    Pysics Paper 31 (Discussion only)

    well , i think your current is definitaly correct because dividing 2.4 by 1.25 got me 1.92 which i remember getting in the exam. so the power should have been 1.25 x 3.6 = 4.5 wat
  6. U

    Pysics Paper 31 (Discussion only)

    hmm. I think i subtracted 3.6 from 6 to get 2.4. I mean if we want the heater to get 3.6 , then the resistor needs to get 6-3.6 :P. and ofc 2.4/1.25 = 1.92
  7. U

    Pysics Paper 31 (Discussion only)

    Well , i think he gave us the power then said what would the current be if the optimal P.D. was present. Optimal P.D> was 3.6 i think yea. and i think the current was like 2.5 , but it's kinda of foggy.
  8. U

    Pysics Paper 31 (Discussion only)

    How did you arrive at that. I just took the value of resistance that would have provided the same current as we got in the first question.
  9. U

    Pysics Paper 31 (Discussion only)

    Two parallel lamp , with one lamp having it's own switch and then one switch for the whole circuit.
  10. U

    Pysics Paper 31 (Discussion only)

    did you get the same? , resistance that is
  11. U

    Pysics Paper 31 (Discussion only)

    1.9 ohm i think
  12. U

    Pysics Paper 31 (Discussion only)

    I just wrote no movement ;>. It would be like you trying to push a building. Nothing happens.
  13. U

    Physics exam 31 came from heeeeeel!!!!! What is wrong CIE

    Re: Physics exam 31 came from heeeeeel!!!!! What is wrong CI I did the same dival. I know it's weird , but i can't think of any other way. the calculation of the mass from the values in the table produced un even mass. And of course there was initial static friction to consider which would mean...
  14. U

    Pysics Paper 31 (Discussion only)

    Well , erm. No acceleration is true , but since we're considering a trolley that was never moving. Then it wouldn't be moving if there was never any acceleration to start with. And i mean , the case is rather obvious. There was static friction preventing the trolley from moving. So initial force...
  15. U

    Pysics Paper 31 (Discussion only)

    Was that a question o.O. Do you mean what was happening to the acceleration before 1.2?
  16. U

    Physics exam 31 came from heeeeeel!!!!! What is wrong CIE

    Re: Physics exam 31 came from heeeeeel!!!!! What is wrong CI That's the same thing i said early on :P. Well , confirmation is nice anyways.
  17. U

    Pysics Paper 31 (Discussion only)

    Nothing , static friction was preventing it's movement.
  18. U

    Pysics Paper 31 (Discussion only)

    yea same.
  19. U

    Pysics Paper 31 (Discussion only)

    Well , now that i think about it. Sadly the name won't change if the radiation was beta. Because neutron decays , producing a proton , an anti-neutrino and an electron. So the number of stuff in the nueclus won't change. It would be a different isotope but i can't recall if that was indeed the...
  20. U

    Pysics Paper 31 (Discussion only)

    The question about why the radioactive sample wouldn't have the same name afterwards. I kinda of made the assumption that the radiation was Beta , so neutrons would be decaying.
Top