Решение задачи по физике раздел 68 пункт 9 электро

9. Two point charges q1 = 9 nC and q2 = −27.7 nC are at a distance of r = 5 cm from each other. What is the electrostatic field strength at a point located at a distance of r1 = 3 cm from the positive charge and r2 = 4 cm from the negative?

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)