What is the cause of rotation of earth on its axis ?
What is the cause of gravitation by any particle?
The region around the earth is space,so if we go straight downwards in the space where will we reach?what is there at the end of the space?
well sohil u hav asked questions that intrigue many a mind.
why does a charged particle exert (or experience) coulombs force
what is mass?
why does refractive index depend on wavelenght of light?
these are some questions which somewhere down the line have to be answered as a property of matter