Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.3 m. The electric field at a point P, which is 0.6 m from the center of the sphere, is 5000 N/c and is directed radially outward. At what distance from the center of the sphere does the electric field have the same magnitude as it has at P

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?