Question: Suppose you have two particles in vacuum separated by a distance of 1cm. Each particle has a radius of 0.01cm. One particle has a surface

Suppose you have two particles in vacuum separated by a distance

Suppose you have two particles in vacuum separated by a distance of 1cm. Each particle has a radius of 0.01cm. One particle has a surface charge equivalent to 31010 electrons and the other has a surface charge equivalent to 21010 electrons. (i) What is the electrostatic force that they exert on each other? [10\%] (ii) Will the two particles repel or attract each other? [5\%] Note: elementary charge, e=1.602176621018C; vacuum permittivity or dielectric constant of vacuum =0=8.8541012Fm

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