Give an example of a negative slope.

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Ascientific blank must be testable and capable of being proven false?