The kinetic energy of an object is equal to one half its mass multiplied by its speed

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Name the element in group 17, period 2. (periodic table)

When a scientific theory has been tested and proved by the scientific community, it becomes a law