An excess charge of is put on an ideal neutral conducting sphere with radius . What is the Coulomb force this excess charge exerts on a point charge of that is from the surface of the sphere?

Determine the strength of a force of proton on another proton in the nucleus if they are apart.

Two protons are at a distance away from each other. There is a force acting on each proton due to the other. If the protons are moved so that they are now at a distance

apart, what is the new force acting on each proton due to the other ?

If we have 2 charges, and , that are apart, what is the force exerted on by if we know that has a charge of and has a charge of ?

If we have 2 charges, and , that are apart, what is the force exerted on by if we know that has a charge of and has a charge of ?

Charges A and B are placed a distance of from one another. The charge of particle A is whereas the charge of particle B is . Charge B experiences an electrostatic force of from charge A. Similarly, charge A experiences an electrostatic force of from charge B.

What is the ratio of to ?

Write, in vector notation, the force exerted on a positive charge of by a negative charge of , if the two charges sitting on the -axis, with the positive charge sitting to the right of the negative charge?

If we have 2 charges, and , that are apart, what is the magnitude of the force exerted on by if we know that has a charge of and has a charge of ?

If the distance between two charged particles is doubled, the strength of the electric force between them will __________.

What are the unit(s) of Coulomb's constant ?