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2. A charge 20 is located at the origin while a second charge -Qis located at x 3 cm. Where should a third charge tq be placed so that the net force on this third charge is zero? Start witha diagram, and you may wish to consult your lecture notes. You should be able to determine a single numerical value for x Two point charges are placed at the vertices of an equilateral triangle as shown. a. Find the net electric field (magnitude and direction) at 3. point A. Find the net electric force (magnitude and direction) that the two charges would exert on an electron placed at point B 3 cm 3 cm b. 3 cm 91 +5 nC
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120 due-to 42 e to χ-3) 2. 2_ 0 Snat O,DiSmm

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