# Problem: An electron is initially at rest in a uniform electric field having a strength of 2.05 × 100 V/m. It is then released and accelerated by the presence of the electric field.Part (a) What is the change in the electron's kinetic energy, in kiloelectron-volts (keV), if it travels over a distance of 0.475 m in this field?Part (b) Over how many kilometers would it have to be accelerated in the same electric field to increase its kinetic energy by 65 GeV?

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An electron is initially at rest in a uniform electric field having a strength of 2.05 × 100 V/m. It is then released and accelerated by the presence of the electric field.

Part (a) What is the change in the electron's kinetic energy, in kiloelectron-volts (keV), if it travels over a distance of 0.475 m in this field?

Part (b) Over how many kilometers would it have to be accelerated in the same electric field to increase its kinetic energy by 65 GeV?