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Physics: Electrical Potential

Two charges exist along the -axis, q1 = +3.5 mC and is located at (-7.6, 0) m and q2 = -2.7 mC and is located at (-2.7, 0) m. Determine:

a) The electrical potential at the origin:  __________ V

b) The electrical potential at the point (0,2.8) m: __________  


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