The two looked so alike that it was impossible to __________ between them .

Describe two events that are impossible to happen.

If A and B are the two points then find distance between them : .

If the distance between the two objects is double, then the gravitational force between them will be ________________ times.

If the distance between the two bodies is tripled, what will be the Gravitational force between them

If A and B are the two points. Find the distance between them : .

How far two electrons should be placed so that the force of repulsion between them is equal to the weight of an electron ?

Which two planets have asteroids between them ?