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Small bodies with charges of +10 ^ -15 C are 2 cm apart. What is the...

Small bodies with charges of +10 ^ -15 C are 2 cm apart. What is the acceleration of the body with a mass of 0.5 mg and a charge of + 2 * 10 ^ -15C, which is 2 cm from the first and 3 cm from the second body? What is the total electric energy of all three bodies?

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