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  1. angelicsuccubus

    A2 Physics | Post your doubts here

    sorry I got distracted, lets see... I haven't really studied this stuff but from what I can see it's because the current in the primary coil is not going to be in phase with the current in the secondary coil right? In Faraday's law.. rate of change of magnetic flux linkage is proportianal to the...
  2. angelicsuccubus

    A2 Physics | Post your doubts here

    well I can't sleep.. I still have 4 chapters to go through.. all the pastpapers and study all of IT.. and 2 more mech pastpapers.. so I guess I'll be the only one here -_-
  3. angelicsuccubus

    A2 Physics | Post your doubts here

    are all of you going to go sleep soon? ...
  4. angelicsuccubus

    A2 Physics | Post your doubts here

    2b) very hard to explain.. it barely makes sense to me..
  5. angelicsuccubus

    A2 Physics | Post your doubts here

    Ill reply for each one seperately cause my laptop is being uber-slow right now. For s03 --q2 a) when water is evaporating at a constant temperature, there is no change in k.e but the molecules must overcome the intermolecular forces.. they move away from each other and so their potential...
  6. angelicsuccubus

    A2 Physics | Post your doubts here

    do we have to know about helical springs?
  7. angelicsuccubus

    A2 Physics | Post your doubts here

    you know what.. .it doesnt make sense to me either anymore..
  8. angelicsuccubus

    A2 Physics | Post your doubts here

    it says "deduce".. so you should be able to explain it but you don't need to be able to derive it from the mu--mu=2mu stage.. go over it and understand what's happening though..
  9. angelicsuccubus

    A2 Physics | Post your doubts here

    I don't think so.. but the different versions of this equation are..
  10. angelicsuccubus

    A2 Physics | Post your doubts here

    For Q9 b) the difference in the uncertainties is 10%-2% =8% That's an uncertainty of 0.08. So to calculate the activity for when the source is not decaying 0.08, it would be decaying 1-0.08= 0.92. so the activity= 0.092 decay constant=0.693/half life .. and the rest is just A = A0 exp(–ln2 t...
  11. angelicsuccubus

    A2 Physics | Post your doubts here

    larmor frequency.
  12. angelicsuccubus

    A2 Physics | Post your doubts here

    What's the gt for this paper usually?
  13. angelicsuccubus

    A2 Physics | Post your doubts here

    lol I think you got close to what Im tryna put into words in my head... but thanks
  14. angelicsuccubus

    A2 Physics | Post your doubts here

    yeh I know that .. but its not sticking to my head... e- ----------------------------------> <----------------------------------- + how is this the same?
  15. angelicsuccubus

    A2 Physics | Post your doubts here

    Explain this "electron flow to the right is equivalent to current flow to the left"
  16. angelicsuccubus

    A2 Physics | Post your doubts here

    yeh and with experience you should know.. when to round off and when not to... when the value is funky on your calculator, and is meant to be an answer? round off for the next part, kay?
  17. angelicsuccubus

    A2 Physics | Post your doubts here

    A resistance thermometer and a thermocouple thermometer are both used at the same time to measure the temperature of a water bath. Explain why, although both thermometers have been calibrated correctly and are at equilibrium, they may record different temperatures. (2)
  18. angelicsuccubus

    A2 Physics | Post your doubts here

    I've noticed this in all cie papers.. if the question is in parts, always use the value from your last answer, so the rounded off version unless it's like angles in mechanics or something
  19. angelicsuccubus

    A2 Physics | Post your doubts here

    I hate magnetic fields and forces....
  20. angelicsuccubus

    A2 Physics | Post your doubts here

    considering I'm only going to have enough time to look at 5 papers or so.. which years/seasons should I look at?
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