Solve the following problems:
Problem I: A charge of +5.00 nC is placed at the origin, what is the electric field (magnitude and direction) at 3 cm east from origin? Draw a picture of this situation showing the electric field vector direction.
Problem II: For the same problem, what is the electric field (magnitude and direction) at 3 cm north from the origin? Draw a picture of this situation showing the electric field vector direction.
Please show all work and clearly explain each steps.