# physics

posted by .

If two charges are a distance R apart from eachother and their force is F, what will the force be if they are moved apart to a distance of 2R?

• physics -

F=Ko(Q1*Q2/r^2)

if r is doubled, the F will be reduced by 1/4.

• physics -

opps, it will be 1/4 of the original F

## Similar Questions

1. ### Physics - Coulombs Law

Two identical objects have charges 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 touched together, then moved to a distance of separation of 2d, what will be …
2. ### 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 …
3. ### Physics - inverse square law (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 …
4. ### Physics - inverse square law(check)

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 …
5. ### physics

Two charges that are 2 meters apart repel each other with a force of 2 x 10-5 newton. If the distance between the charges is decreased to 1 meter, the force of repulsion will be A) 1 x 10-5 N B) 4 x 10-5 N C) 8 x 10-5 N D) 5 x 10-6 …
6. ### science

How much work is done by an applied force that moves two charges of +7.8 µC that are initially very far apart to a distance of 3.8 cm apart
7. ### 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?
8. ### physics

two charges originally separated by 10cm are moved further apart untill the force between them has decreased by a factor of 10. How far apart are these charges?
9. ### Physics

Two identical charges repel each other with a force of 10-5 N when they are 20 cm apart. a.) What is the force on each when they are 5 cm apart?
10. ### science

Two charges placed at a distance r apart exert force F on each other at what distance will these charges experience same force in medium of dielectric constant K.

More Similar Questions