Electrons in a particle beam each have a kinetic energy of 3.2 × 10^-17 J. What is the magnitude of the electric field that will stop these electrons in a distance of 0.05 m? (e = 1.6 × 10^-19 C)
a. 2000 N/C
c. 200 N/C
b. 4000 N/C
d. 1000 N/C
B
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