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1- Three point charges are suspended in space: Q_{1}=1.0[n C], \vec{R}_{1}=\langle 0,0,0\rangle ; Q_{2}=1.0[n C], \vec{R}_{2}=\langle-1,0,0\rangle If the third charge is defined by Q3 = 1.0[nc], R3 = (1,0,0), what is the total forceexerted on charge 1? If the third charge is defined by Q3 = -1.0 [nc], R3 = (1,0,0), what is the total force exerted on charge 1?

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