X-rays are used in photographing bones because they detect the bone fractures. Gamma rays have medical purposes because they are used to treat and discover some swellings (tumors). Exposing dental treatment tools for ultraviolet...
Coincidence played the main role in the discovery of the general gravitational law by Isaac Newton when he noticed the fall of an apple from a tree to the ground , Newton concluded some...
Centripetal Acceleration Changing the direction of velocity leads to the existence of acceleration called the centripetal acceleration ( a ) which is the acceleration acquired by an object moving in a circular path due...
Circular motion is considered one of the most important movement in the universe such as Motion of the Earth around the Sun , Motion of the Moon around the Earth , according to Newton’s...
