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Three electrons are aligned on a straight line and separations between them are 1.0mm. The outer two electrons are fixed in position.

a. What is the electric potential at the position of the center electron?

b. What is the electric potential energy of the center electron?

c. What is the electric potential energy of this system of three electrons?

d. Is the center electron at a point of stable or unstable equilibrium?

e. If the center electron is displaced horizontally by a small distance, what will its speed be when it is very far away?

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