Please i need your help with this exercise question (all the parts). I\'ll rate

Question

Please i need your help with this exercise question (all the parts). I'll rate your answer.

Two small insulating spheres ertically as shown in the figure. are attached to silk threads and aligned 41 15 cm 42 These spheres have equal masses of 34 g and carry charges 1 and 92 of equal magnitude 6.0 HC but opposite sign. The spheres are brought into the positions shown in the figure, with a vertical separation of 15 cm between them. Note that you cannot neglect gravity. Give the tension in the lower thread in units of N Note . k = (40)-1-8.99 x 109 (N-m2)/C2

Explanation / Answer

There are two forces acting on the charge q2:

The attractive force from the positive charge and the force of gravity.

Now   FE = kq1q2/r^2 = (9*10^9*36*10^-12)/(0.15)^2 = 14.4 N

And

Fg = mg = 0.034*9.8 = 0.3332 N

The net force = 14.4 + 0.3332 = 14.7332 N (upward)

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