Answer:
For sound waves to travel, there is a requirement of medium and density of the medium is considered to be one of the factors on which the speed of sound depends. When the medium is dense, the molecules in the medium are closely packed which means that the sound travels faster.
Explanation:
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Eris is slightly more massive than Pluto. However, both of them are smaller than Earth's Moon.
This should conclude that Eris is a dwarf planet.
I think your answer is volume
Answer:
No
Explanation:
Displacement is how far between your initial and finishing position.
If one lap around the track is 400 m and the sprinter ran 1 lap around the track. Then the sprinter's distance is 400 m and their displacement is 0 m
If the sprinter ran 400 m in a straight line however, then it would be equal.
But since the sprinter ran 1 lap around there is no displacement.
I hope this helped you...