Answer : 
Explanation :
Given that
Radius of sphere 
The distance between the centers of the two spheres is
The charge of the sphere 
The magnitude of the repulsive force between the charges pushing them a part is
Using coulomb law
Hence, this is the required solution.
Answer:
all the forces occur in pairs that if one object exerts a force on another object, then the second object exerts an equal and opposite reaction force on the first.
Answer:
<em>The direction of the magnetic field on point P, equidistant from both wires, and having equal magnitude of current flowing through them will be pointed perpendicularly away from the direction of the wires.</em>
Explanation:
Using the right hand grip, the direction of the magnet field on the wire M is counterclockwise, and the direction of the magnetic field on wire N is clockwise. Using this ideas, we can see that the magnetic flux of both field due to the currents of the same magnitude through both wires, acting on a particle P equidistant from both wires will act in a direction perpendicularly away from both wires.
<span> </span>Most of the stars in the Milky Way will end their lives as white dwarfs
