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    Goedele's Avatar
    Goedele Posts: 7, Reputation: 1
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    #1

    Feb 22, 2011, 12:41 PM
    Physics Fusion Question
    The force an electric field of strength E (N/Coulombs) applies to a particle of charge Q coulombs is simply Q * E. If the charge is positive, the force is in the direction of the field. a) How much force does a 150,000 N/C force exert on a deuteron (1 neutron and one proton) b) How much KE will it gain if stays in this field for 2 m How fast will it be going?
    Please, I need it as soon as possible!
    Thanks!
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Feb 22, 2011, 01:16 PM

    For (a) you've been given the formula to use - all you need to know is that the charge of a proton is 1.6 x 10^(-19) C, and the charge of a neutron is zero. For(b) to find the gain in kinetic energy you multiply the force applied to the deuteron by the distance the force acts over, which is 2 meters. Finally its velocity is calculated from KE=1/2 mv^2; all you need to know is the mass of the deuteron to solve this for v, which I bet is given in your text book.
    Goedele's Avatar
    Goedele Posts: 7, Reputation: 1
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    #3

    Feb 22, 2011, 01:23 PM
    Comment on ebaines's post
    Thank you ! :D

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