I sort of understand but what does it mean by.... Another?
If an object is at equilibrium, the net force acting upon the object is 0 Newton.
Storing music digitally requires less storage room than analog records or tapes. Digital music is easier to copy and the copies are the same as the original. The quality of the signal does not degrade over long periods of time.
If a plant is under 700km in diameter it is considered a dwarf planet, according to the international astronomical union it must orbit around the sun, be massive enough to be in hydrostatic equilibrium, and it has cleared the neighborhood around its orbit.