An electron with an initial speed of 4.0 10 5 m/s enters a region in which there
ID: 1404685 • Letter: A
Question
An electron with an initial speed of 4.0 105 m/s enters a region in which there is an electric field directed along its direction of motion. If the electron travels 4.0 cm in the field before being stopped, what are the magnitude and direction of the electric field? (Assume that the electron is traveling in the +x direction.)
The electric field has a magnitude of 11.4 N/C and points towards -x
The electric field has a magnitude of 2.00 N/C and points towards -x
The electric field has a magnitude of 2.00 N/C and points towards +x
The electric field has a magnitude of 11.4 N/C and points towards +x
Explanation / Answer
The electric field has a magnitude of 11.4 N/C and points towards -x
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