A charge $Q_1=+4\mathrm{.}8nC$ is placed at the origin. A second charge $Q_2=-4\mathrm{.}0nC$ is placed at the coordinates $x_2=5\mathrm{.}0m$ and $y_2=0.$

What is the direction of the net electric field produced by these two charges at a point of coordinates $x=3\mathrm{.}7m$ and $Y=5\mathrm{.}3m?$

The direction is specified by calculating the angle between the positive $x$ direction and the direction of the vector. For the purpose of this calulatiion the angle is positive if it is in the first quadrant and negative if it is in the fourth quadrant.

Round off your answer to one decimal places but do not include the unit. Include the minus sign when applicable.

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