Solving a problem in physics section 75 point 74 electr

Solving a problem in physics section 75 point 74 electr

74. On silk threads with a length of l = 50 cm each, two identical balls weighing m = 0.16 g each, hanging in contact with each other. After the balls were informed of equal charges of the same name, they dispersed to a distance of 4 cm. Determine the charges of the balls

Additional information:

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