Posted by Pat on Monday, June 4, 2012 at 11:00pm.
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  Elena, Tuesday, June 5, 2012 at 3:25am
Coulomb's Law
F1=k•q1•q2/r²
F2=k•q1•q2/R²
If R=5r, then F2=F1/25

PHYSICS  drwls, Tuesday, June 5, 2012 at 3:30am
It's called an inverse square law.
Gravity of a point mass behaves the same way.
Answer This Question
Related Questions
 Phtsics  Two identical point charges are separated by a distance of 3.0 cm and ...
 Physics  You place two charges a distance r apart. Then you double each charge ...
 Physics  How would the force of gravity between two masses be affected if the ...
 physics  How would the force of gravity between two masses be affected if the ...
 Physics  Find the work that should be done to increase the distance between two...
 Physics  Two charged particles exert an electrostatic force of 27 N on each ...
 Physics  Two charged particles exert an electrostatic force of 27 N on each ...
 Physics  Charges on objects (check + help)  Two identical objects have charges...
 Physics  If you reduce the distance between two point charges to one third of ...
 Physics  Two electricallycharges spheres are suspended from insulated threads ...
More Related Questions