can someone please help me with this lab? I don't know how to calculate the force of gravity or the electric force. I also need help with the analysis, conclusion and synthesis. if anyone could help it would be much appreciated !! i have attached the values for both tables.

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward