To determine the type and amount of electric force between the two objects with charges of +1 C each, we need to analyze their charges and the distance separating them.
- Both charges are positive (+1 C and +1 C).
- According to Coulomb's law, like charges repel each other.
Based on the provided options and the characteristics of the charges:
- Since both charges are positive, the force between them will be repulsive.
- The distance separating them is 10 mm, which is greater than the 2 mm distance where a "strong" force was mentioned for charges of higher magnitudes, but a 4 mm distance has a "medium" force.
Given this information, the force will be repulsive, but the strength of the force would be relative to both the charge magnitudes and the distance between them.
Thus, there is no option that exactly corresponds to the repulsive force at 10 mm, but the closest and most reasonable option, given that the charges are the same, is:
- Repulsive weak.