Three point charges are located on the positive $x-$axis of a

coordinate system. Charge $q_1=2\mathrm{.}0nC$ is $2\mathrm{.}0cm$ from

the origin, charge $q_2=-4\mathrm{.}0nC$ is $4\mathrm{.}0cm$ from the origin

and charge $q_3=4\mathrm{.}5nC$ located at the origin.

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Vector addition of electric forces on a line.

Part A

What is the magnitude of the net force exerted by the other two charges on charge $q_1=2\mathrm{.}0nC?$

Express your answer in newtons.

$|vec(F)|=$

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Part B

What is the direction of the net force exerted by the other two charges on charge $q_1=2\mathrm{.}0nC?$

Express your answer in degrees.

$=$

$$ counterclockwise from the $+x$ direction