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12. 2.10
Four masses 10 g each are tied together by 10 cm strings to make a square as shown. Two of the masses carry a charge of 2 μC. The string between the two charged
masses is cut and the system begins to move. What is the maximum speed of the masses in m/s? Do not consider gravity or friction. You can imagine the masses to
be on a horizontal frictionless table.
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