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    Anyone able to help with Q9?
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    (Original post by pippabethan)
    Anyone able to help with Q9?
    have you made a start?
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    (Original post by TeeEm)
    have you made a start?
    I have worked out the energy of the particle at the different stages and tried to equate them but I can see it won't come out as the right answer
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    (Original post by pippabethan)
    I have worked out the energy of the particle at the different stages and tried to equate them but I can see it won't come out as the right answer
    Post some attempt to the question please and I will try to take it from there
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    Try working backwards, starting with the formula you need to show.
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    (Original post by aamirac)
    Try working backwards, starting with the formula you need to show.
    Yeah, don't do this OP.
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    I will do a solution for this question tomorrow as it is very tasty.
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    (Original post by TeeEm)
    I will do a solution for this question tomorrow as it is very tasty.
    Thankyou! I would show my working but I'm afraid it's rather unhelpful
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    (Original post by pippabethan)
    Thankyou! I would show my working but I'm afraid it's rather unhelpful
    Let us see
 
 
 
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