# PHYSICS

posted by .

If you increase the distance between two identical point charges so that the new distance is five times the original distance, what happens to the force between them?

I know it is suppose to be divided by 25 but why?

• PHYSICS -

Coulomb's Law

F1=k•q1•q2/r²
F2=k•q1•q2/R²
If R=5r, then F2=F1/25

• PHYSICS -

It's called an inverse square law.
Gravity of a point mass behaves the same way.

## Similar Questions

1. ### Physics - Charges on objects (check + help)

Two identical objects have charges from +6.0*10^-6 and -2.0*10^-6, respectively. When placed a distance d apart, their force of attraction is 2,0N. If the objects are touched together, then they moved to a distance of separation of …
2. ### Physics

Two charged particles exert an electrostatic force of 27 N on each other. What will the magnitude of the force be if the distance between the two charges is increased to three times the original distance?
3. ### Physics

Two charged particles exert an electrostatic force of 27 N on each other. What will the magnitude of the force be if the distance between the two charges is increased to three times the original distance?
4. ### Physics

You place two charges a distance r apart. Then you double each charge and double the distance between the charges. How does the force between the two charges change?
5. ### Phtsics

Two identical point charges are separated by a distance of 3.0 cm and they repel each other with a force of 4 X 10^-5 N. What is the new force if the distance between the point charges is doubled?
6. ### physics

How would the force of gravity between two masses be affected if the separation distance between them were the following?
7. ### Physics

How would the force of gravity between two masses be affected if the separation distance between them were,assume F2 represents the new force and F1 represents the original force.(a)quadruple the original distance F2/F1= also one-half …
8. ### Physics

Find the work that should be done to increase the distance between two point charges with the charges of 5nC and -10nC by 5cm. The initial distance between the charges is 15cm.
9. ### Physics

If the distance between two charges is increased to three times the original distance, how will the electrical force between the charges compare with the original force?
10. ### physics

There are two charged particles. They exert an electrostatic force of 10 N on each other. Suppose the distance between the two particles is increased to five times the original distance. What will the magnitude of the force?

More Similar Questions

Post a New Question