1. considere un polígono regular de lado a y 2n vértices, donde consecutivamente se han puesto n cargas positivas q y luego n cargas negativas -q. En la figura se muestra el caso n=3. Determine a) La fuerza eléctrica resultante y su dirección en el centro del polígono sobre una carga Q= -500µC.
b) La fuerza neta y su dirección producida sobre una carga positiva Q ubicada a 1o cm desde el centro del polígono a lo largo del eje x. a= 5cm; q= 500µC.

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Explanation:

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.