Charging slinky

Two charged non-conducting spheres, each with charge 1 μC\mu\text{C}, are placed at the end of a non-conducting spring of natural length 0.1 m and spring constant 1000 N/m. What is the distance the spring is stretched when it comes to rest in m?

Details and assumptions

  • The electrostatic constant is 9×109 Nm2/C29 \times 10^9~\text{Nm}^2/\text{C}^2.
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