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    What does anyone reckon the B boundary will be. It's all I was aiming for in this paper anyway considering I always do slightly worse in exams and I doubt I'll be getting an A anyway oops
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    What did people but as units for epsilon naught x Gravitational constant?
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    Has anyone done a full unofficial mark scheme for the paper today yet? If yes can someone tell me what page its on please thankyou :-)
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    (Original post by tophatmenis)
    What did people but as units for epsilon naught x Gravitational constant?
    I just guessed that and I know I am wrong. I put the longest one with Fmkg nonsense. I didn't have time for this ugly question
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    (Original post by mgill17)
    What does anyone reckon the B boundary will be. It's all I was aiming for in this paper anyway considering I always do slightly worse in exams and I doubt I'll be getting an A anyway oops
    likely 48ish was way easier than last years?
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    What was the answer to the alpha particle momentum one? Think I put 1e-12 kgms-1 which doesn't agree with anything people are posting
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    Vote
    http://www.thestudentroom.co.uk/show....php?t=4176850

    Last year the most popular vote was 49, and it actually turned out to be 49, so it's fairly accurate
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    (Original post by Vikingninja)
    I got zero as well, they all cancelled out.
    yh that was my thinking, is that correct?
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    Waiting on kingaaran


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    (Original post by particlestudent)
    I just guessed that and I know I am wrong. I put the longest one with Fmkg nonsense. I didn't have time for this ugly question
    I put C^2 / kg^2 I think
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    (Original post by boyyo)
    I put C^2 / kg^2 I think
    I put the one with kg^2 in it because the electric equations don't involve mass.
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    Kingaaran plz hurry sir
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    (Original post by CourtlyCanter)
    I have no idea why I did it but I said plot 'lengths against time' and the gradient would be g. Would I get any marks for the graphical method bit since I mentioned the gradient would be g?
    Probably not because what you've said is incorrect and may be classed as an error of physics
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    What did people get for the gravitational potential at the centre of the 2 masses?


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    (Original post by Vikingninja)
    I put the one with kg^2 in it because the electric equations don't involve mass.
    https://www.google.co.uk/search?q=pe...hrome&ie=UTF-8

    S^2A^2 = C^2 so C^2kg^-2
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    (Original post by AQATrolledMe)
    Do you think that unit 5 will be harder becuase unit 4 paper is kinda decent ? Hopefullly i dont trigger anyone
    *Vietnam flashbacks intensifies*
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    (Original post by WillRose)
    likely 48ish was way easier than last years?
    That'll do me. I should be safe into that.
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    (Original post by jonnypiercy)
    d b b d d c d b b c b c c a c a b a c a a d c b d
    sorry dude, that doesn't really help, need to see the questions
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    (Original post by GillyTheGhillie)
    *Vietnam flashbacks intensifies*
    This is funny cause i am actually vietnamese
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    Hi,

    For the question asking for the time constant: It said it took 45 seconds for 80% of the voltage to decay. So, I did 45/80, for the time for 1 % to decay. I then said the time constant was the time for it to decay to ~ 37% ((1/e)*100) and so I did (1-1/e)*100 which roughly gave 63% as expected. I did this 63% timesd by the value of 45/80 to give 63% lost- and I got like 35.6... which is wrong. Why is this wrong?
 
 
 
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