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    (Original post by txnilxnur)
    I used the equation eV = 1/2 mv^2
    Gave me a velocity of something like 23989839. I then used this in the equation e/m = v/Br and it gave the right answer which is 1.8x10^11.
    I think I did it the way you did to begin with but thought it obviously can't be that so changed it.. you should get a mark for the Unit provided you got that right ! Which to be fair is given on the formula sheet lmao
    No you can't do it that way - you're using the electron charge and mass from the formula booklet which they wouldn't have had at the time! The question made it clear: use THIS data


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    (Original post by kingaaran)
    Erm you didn't have v - the velocity - you had the potential through which they are accelerated


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    But I used eV = 1/2 mv^2 to get v then subbed into v/Br
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    (Original post by Sid1234)
    127.24 i got o.O
    Yeah think I got this. There will be leeway for rounding though surely
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    Did anyone get 1700 for the specific heat capacity ?
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    Did anyone get 0.27 for the density question in the nuclear paper?
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    How'd everyone find it? I found it to be a more difficult than average paper but doable


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    (Original post by RUNSran)
    Did anyone get 1700 for the specific heat capacity ?
    I think so


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    (Original post by Beautywithabrain)
    Did anyone get 0.27 for the density question in the nuclear paper?
    Got 1.2


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    (Original post by RUNSran)
    Did anyone get 1700 for the specific heat capacity ?
    Yes
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    What did people say for the quantities that change or whatever it was for electromagnetic waves?

    I said the direction of the magnetic/electric fields.
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    (Original post by BigDaddy97)
    Both methods will get the marks chill


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    lol not if the answer is wrong who I was replying to got x10^8 so definitely not right
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    (Original post by Beautywithabrain)
    Yeah think I got this. There will be leeway for rounding though surely
    I think using the values they gave us it rounded to 127 but using the figure 3, it was 128?
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    (Original post by txnilxnur)
    lol not if the answer is wrong who I was replying to got x10^8 so definitely not right
    Oh well that's defo wrong


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    (Original post by Mattematics)
    What did people say for the quantities that change or whatever it was for electromagnetic waves?

    I said the direction of the magnetic/electric fields.
    Magnetic field; electric field; in phase


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    there was a 1 mark, energy given to the ice, was it the same as the number in the question?
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    (Original post by BigDaddy97)
    Got 1.2


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    Same 👍
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    (Original post by Mango Milkshake)
    there was a 1 mark, energy given to the ice, was it the same as the number in the question?
    No, it was that energy minus the latent energy of fusion.
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    (Original post by tanyapotter)
    i think i got them the other way round? wasnt specific heat capacity 2120? and the energy was 2490?
    I'm certain I got these
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    (Original post by Beautywithabrain)
    Yes
    Unfortunately the answer was 2100


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    (Original post by tanyapotter)
    i think i got them the other way round? wasnt specific heat capacity 2120? and the energy was 2490?
    I got that.
 
 
 
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