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12 February, 23:45

An upward force acts on a proton as it moves with a speed of 2.0 * 105 meters/second through a magnetic field of 8.5 * 10-2 tesla running from east to west. What is the force and direction of the force on the proton?

2.7 * 10-15 N to the north

2.7 * 10-15 N to the south

1.7 * 10-14 N to the north

1.7 * 10-14 N to the south

1.7 * 10-14 N downward

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  1. 13 February, 00:25
    0
    We are given:

    the speed of a proton = 2.0 * 10^5 meters/second;

    moving through a magnetic field = 8.5 * 10-2 tesla

    direction: east to west

    The force and the direction of the force of the proton is determined using the magnetic field formula

    F = qvxB

    where q = charge

    v = vector

    x = speed

    B = magnetic field

    F = 1.6x10^-19 C * 2.0 * 10^5 m/s * 8.5 * 10-^2 tesla

    solve for F and the direction of your force is opposite the direction of the proton which is north since the proton is going upwards.
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