To determine the type and amount of electrical force between two objects with a charge of +1 C, we can use the information provided.
From the data in the table:
- When both charges are +1 C and the distance is 4 mm, the force is medium.
- When both charges are -1 C (which also are like charges), and the distance is 2 mm, the force is strong.
- When charges are -2 C and +2 C, the distance is 4 mm, and the force is strong (indicating an attractive force).
Since the two objects in question both have a charge of +1 C, they will exert a repulsive force on each other.
Now, we need to consider the distance between the charges. The original observations do not provide a specific reference for 10 mm, but since we know that as the distance increases between like charges the force generally weakens, we can infer that the repulsive force at a distance of 10 mm will be less than at 4 mm.
Based on this reasoning, the force would be repulsive, weak because the charges are the same and the distance (10 mm) increases compared to a closer distance that would have resulted in a stronger force.
Thus, the correct response is: repulsive, weak.