Two charged objects, a and b, exert an electric force on each other. what happens if the distance between them is increased?

a) the charge on b decreases
b) the charge on b increases
c) the electric force between them decreases
d) the electric force between them increses

option c) the electric force between them decreases.

Explanation:

The electric force that two charged objects exert on each other follows Coulomb's law: the electric force is proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance that separate the charges.

Mathematically, that is:

Hence, you conclude that if the distance between the charges is increased, the electric force will decrease.

the answer would be 32*f

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.