Anonuniform electric field is directed along the x-axis at all points in space. this magnitude of the field varies with x

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?