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a. For point charge 5.2 µC and point charge -2.9 µC located at the same positions...

a. For point charge 5.2 µC and point charge -2.9 µC located at the same positions as in the previous question (5 m and 4 m, respectively), determine the magnitude of the net electric field E at the origin (in N/C).

Your answer should be a number with two decimal places, do not include the unit.

b. For point charge -1.3 µC and point charge 8 µC located at the same positions as in the previous question (5 m and 4 m, respectively), determine the direction of the net electric field E at the origin.

1µC = 10-6C

Your answer should be an integer, do not include the unit.

Hint: The direction is indicated by an angle measured in degrees counterclockwise from the positive x axis.

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