In the neck of the picture tube of a certain black-and-white television set, an electron gun contains two charged metal licplates 2.80 cm apart. An electric force accelerates each electron in the beam from rest to 9.60% of the speed of light over this distance.
1. Decide the kinetic energy of the electron as it leaves the electron gun. Electrons carry this energy to a phosphorescent material on the inner surface of the television screen, making it glow. For an electron passing among the plates in the electron gun, determine
2. The magnitude of the constant electric force acting on the electron,
3. The acceleration, and
4. The time of flight.