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A 22 nC charge is placed at the origin of an x-y coordinate system. A 16 nC charge is placed at coordinate (0, 8cm) and a -14 nC charge is at (-6cm, 0).

a. What is the electric potential at coordinate (-6cm, 8cm)?

b. What is the magnitude and direction of the electric field at coordinate (-6cm, 8cm)?

c. What would be the magnitude of the acceleration of a proton released from rest at coordinate (-6cm, 8cm)?

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