A -17 nC charge is placed at the origin.
1. Find the strength of the electric field at the position (x, y) = (0cm, 5.0cm)?
2. Find the strength of the electric field at the position (x, y) = (5.0cm, 5.0cm)?
3. Find the strength of the electric field at the position (x, y) = (5.0cm, 5.0cm)?