What is the definition for model system

What is secondary succession? give an example.

What term describes an atom's tendency to hold onto electrons?

An objects momentum depends on its

If calcium lost two electrons it would have the same number of electrons as

Suppose an object is moving in a straight line at 50 mi/hr. According to Newton's first law of motion, the object will:

Why do we use average force while solving momentum problems? How is net force related to the momentum of the object?

If you had a positive 8 score on the sit-an-reach test you

65 million years ago there was a mass extinction that is best known for killing the dinosaurs. There was also a large deposit of dust that contained substances only found in asteroids.

Near which location in New York State would a geologist have the greatest chance of finding dinosaur footprints in the surface bedrock?

E=mc^2 solve for c E/m m/E sqrt (E/m) sqrt (m/E) E - m sqrt (E-m)