Calcular la fuerza que se ejerce sobre una carga puntual de 5x10-6por la acción de otras dos cargas eléctricas de 2x10-6 cada una también puntual,
realizar la figura correspondiente de distancia 2 m.

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

there are no atoms