The answer is A track star speeding up as he sprints to the finish line.
I am not to sure because I have not studied this
Answer:
For example, a suitcase jam-packed with clothes and souvenirs has a high density, while the same suitcase containing two pairs of underwear has low density. Size-wise, both suitcases look the same, but their density depends on the relationship between their mass and volume. Mass is the amount of matter in an object.
A heterogeneous mixture is a mixture that it's components can be easily seen and separated.
c. a jar of mixed nuts
