I need help with this physics problem! I don\'t understand what I should be doin

Question

I need help with this physics problem! I don't understand what I should be doing?

In the animation below, you ran examine the forces exerted by two point charges on each other as described by Coulomb's law. In the top scenario, the charges have the same sign while in the lower scenario, the two charges are of opposite sign. The direction and magnitude of force on each charge is indicated by vectors attached to each charge. Numeric readouts of separation distance and force are also provided. The electrostatic force between two charges q_1 and q_2 acts along the line joining the two charges, like charges repel and unlike charges attract. The magnitude of force on either charge is given by Coulombs law, where k_v = 8.99 times 10^9 N middot m^2/C^2. F = k q_1 middot q_2/r^2 In the top window, both charges have the same sign. In this case, the electrostatic force is repulsive - the blue force vectors always point away from each other. In the bottom window, the charges have different signs, so the force is attractive. Move the charges in both windows to a variety of locations, watching the force vectors and the numeric readouts. Use Coulomb's law to determine the number of Coulombs present on the two charges In the top window, assuming that both charges are equal. Express your answer as a multiple of the elementary charge: theta = 160 times 10^-19 C. The animation may have a small round-off error - remember that all real charges must consist of integer multiples of e. q_1 - q_2 = times e What would the force he if the separation between the two charges in the top window was adjusted to 5.98 times 10^-11 m? F = N

Explanation / Answer

Let us assume

F = K Q2 / r2

Now putting the values given F = 64.42 x 10 ^ 5 N

Distance = 5.95 x 10^-12 m

So Q = 1.59 x 10^-13

so dividing by Q/ e , we get no of unit charges are = 994225.6

.6

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