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  • Oct 10, 2010, 05:49 PM
    shelbs2012
    Chemisrty help
    Find e/m for electrons in an experiment in which H=2.68 gauss, S=5.00 cm, E=6.3x10^10 volts/cm, and 0=0.100 radian.

    The 0 in 0-0.100 is really a 0 with a line through it

    Thanks again

    I have another question it you can't answer the above one.
    What magnetic field strength is required to bend the path of a singly charged neon-20 atom (mass-19.992 440 u) through 0.500 radian if the path length is 10.0 cm? Assume that velocity is 2.20x10^8 cm/s, 1 u-1.66x10^-24g, and e=1.602 189 2x10^-19 coulombus. What electric field strength would be required to obtain the same result?
  • Oct 11, 2010, 12:10 AM
    Unknown008

    2.

    Is 10.0 cm the arc length of the path? If so, use



    Now, F = Bev and F = (mv^2)/r;





    When you get that, find F for F = Bev.

    Then, in an electric field, you will need to have a radial field with the same force, or

    F = Ee

    where E is the electric field strength.
    ~~~~~~~~~~~~~~~

    For the first one, I have no idea of what you're talking about.

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