4CHAPTER 15 22. The magnitude of the electric force on the electron of charge edue to a uniform electric field Gis . Thus, the force is constant. Compare this to the force on a projectile of mass mmoving in the gravitational field of the Earth. The magnitude of the gravitational force is mg. In both cases, the particle is subject to a constant force in the vertical direction and has an initial velocity in the horizontal direction. Thus, the path will be the same in
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