Four identical particles each have charge q and mass m. They are released from rest at the vertices of a square of side L. How fast is each charge moving when their distance from the center of the square doubles?

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Question

Four identical particles each have charge q and mass m. They are released from rest at the vertices of a square of side L. How fast is each charge moving when their distance from the center of the square doubles? Note: Assume a reference level of potential V = 0 at r = ∞. (Use any variable or symbol stated above along with the following as necessary: ke.) v =

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