Physics

Problem

Point charges

q_{1}= +6.0\,\mu\text{C}

(4.0\,\text{cm},\,0,\,0)

and

q_{2}= -2.0\,\mu\text{C}

(0,\,5.0\,\text{cm},\,0)

interact in vacuum. (a) Calculate the force

\mathbf F_{12}

experienced by

q_{2}

due to

q_{1}

. (b) Calculate the force

\mathbf F_{21}

experienced by

q_{1}

due to

q_{2}

. (c) Show explicitly from your numerical results that the two forces satisfy Newton’s third law of motion. (d) Comment on how the signs of the charges influence the directions of

\mathbf F_{12}

and

\mathbf F_{21}

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