We consider wastewater treatment as a water use because it is so interconnected with the other uses of water.
Definition of Centripetal Force. Centripetal force is a force that makes an object follow a curved path. The direction of the force is oriented at a right angle to the direction of travel of the object, toward the center of the circle along which the object is moving.
   There is a theory that the centripetal force-which constantly  pulls the Earth   towards the Sun-is perfectly balanced by an equal force, but  opposite in   direction, called the centrifugal force. That is an imaginary  force created by the   action of the Earth moving around its orbit.The theory goes on to  say that, in   the absence of any force of gravity, the Earth's centrifugal force  would make it fly   off into space instead of traveling in its orbit around the Sun.he Earth's inertia means it would travel in a â¦ straight line if it were not for gravity making it follow the curved path which is its orbit. It's the same sort of thing with the Earth and Moon, but now the Earth is the primary around which the Moon orbits.