MedVision ad

Search results

  1. Affinity

    Did Anyone Get Confused By The Wording Of The Time Dilation Question

    I hope BOS could now see the problem of taking out too much maths from physics and replacing them by words
  2. Affinity

    New dotpoint for 2004

    Identify data sources, plan and perform a first hand investigation or gather second hand data for the controversy between the 2 camps of 2003 HSC physics students on the consequences of special relativity, and assess the effect of the debate on *physics*. In your description, refer to the...
  3. Affinity

    Did Anyone Get Confused By The Wording Of The Time Dilation Question

    paragraph 1: sentence 1: everything undergoes relativistic effect. sentence 2: you're confused with your distances. it's 8 lightyears for the spaceship but it's 80/6 = 13.3 light years for earth. and The derivations for those relationships in the lorentz transformations are slightly more...
  4. Affinity

    last question in section one about particle accelerators

    your friend's answer is completely off. magnetic fields can't accelerate charges. F = q v X B (X -> cross product) W = integral F * dr but F is perpendicular to v so work = 0 and no acceleration.
  5. Affinity

    What did you put (not what you think is right) for 5?

    For those who still believe it is D, let me ask you another question: A spaceship travels at a speed of 0.8c relative to the earth. there are 2 identical clocks, one on the ship and and one on the earth. for the journey, the astronaut observed 6 hours to have elapsed on the clock on the...
  6. Affinity

    What do you think you got?

    align is usually higher than scaled
  7. Affinity

    Well that was a load of crap...

    I think everyone knows the real reason for changing physics exam into a history test.
  8. Affinity

    What did you put (not what you think is right) for 5?

    It's B.... We'll see when the marking guidelines are released *grins*
  9. Affinity

    was quanta stuffed or just me??

    number 3: fission reaction in nuclear reactors and atomic bombs such as the little boy, blah blah [insert synopsis of the 8 marker]
  10. Affinity

    What do you think you got?

    let's say 50+ aligned mark
  11. Affinity

    Did Anyone Get Confused By The Wording Of The Time Dilation Question

    not everyone else, I am with you guys, I am your friend :p First thing to do in relativity is to choose the frame of reference. and in this case, it's the spaceship's frame that is considered stationary and the earth's frame is 'moving' so it's B
  12. Affinity

    b.tchy question - syclotron or whatever

    not in a real synchroton but they managed to build this secret one at board of studies student torture lab that does make particles go in PERFERCT circles, so :p by the way, how did you get to work at fermi lab for work exp?
  13. Affinity

    Multiple Choice (Compiled Answers)

    q5 is B, I can bet life on it. You're missing the whole point of relativity, first you have to choose your frame of reference, and from the question, your frame of reference would be the spaceship since it's asking you what is seen on the spaceship. hence the spaceship is the 'Stationary'...
  14. Affinity

    Multiple Choice (Compiled Answers)

    so 5 is B right? I am pretty sure
  15. Affinity

    raw marks

    lol.. look at the standards packages... I reckon some of the exemplar ones are horrible
  16. Affinity

    ME2 Exam paper evaluation...

    02er's should give their 20cents
  17. Affinity

    how mani qnz u tink u got right

    110ish.. if the marker are generous enough, my writing was messy
  18. Affinity

    how did u feel

    alright I guess.. think might loose 1 or two marks there and there.. hmm.. this exam was considerably harder than last years IMO (in my opinion :p)
  19. Affinity

    Question 7

    Q 7 is fairly straight forward
  20. Affinity

    Question 8

    part iv could be done by claiming (Pi^2/4 - x^2) < pi^2/4 and cos(x)<1 then integrating In v just follows on.
Top