For which pair of objects would adding the same amount of electrons to each object result in a decrease in the electric force?
-two positively charged objects
-two negatively charged objects
-two objects that have no charge
-two objects that have opposite charges

Answer;

-Two positively charged objects

Explanation;

-When electrons are added to two negatively charged objects the electric force between objects increases.

-Increasing the amount of charge on an object affect the electric force it exerts on another charged object in the electric force increases because the amount of charge has a direct relationship to the force.

-The magnitude of the electric force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

The correct answer is two positively charged objects.

Explanation:

According to the coulomb's law, the electrostatic force is directly proportional to the product of the charges and it is inversely proportional to the square of the distance between them.

Increasing the amount of the charge on an object affect the electric force because the amount of charge is directly proportional to the electric force.

In the given problem, the amount of electrons is added to the positively charged object. A positively charged object will attract an object that has negative charge. This will lead to decrease in the electric force.

Therefore, the two positively charged objects will lead to decrease in the electric force.

d. air pressure decreases as altitude increases.