Asemicircle of radius a is in the first and second quadrants, with the center of curvature at the origin. positive charge +q is distributed uniformly around the left half of the semicircle, and negative charge −q is distributed uniformly around the right half of the semicircle in the following figure


One splits the atoms and molecules  the other combines them

i don’t know what the answer is i wish i

The charges are distributed along the semicircle with the left side having the charge of +Q and the right side having the charge of -Q. If what is asked is the net electrical force at the origin, then the answer is 0 since the charges are uniform on both sides.

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