<span>Copernicus decided this with more of an educated guess than anything. For example is when your standing right next to a plane it's huge Right? Well when it's flying it looks really small. He used the same reasoning for stars. Since it looks small it must be farther away.</span>
Answer:
rolling ball down a hill
Explanation:
A rolling ball has kinetic energy
Answer:
0.17724 m/s²
Explanation:
D = Diameter of roll = Length of wing = 11 m
T = Time it takes to complete the circle = 35 s
Velocity

Acceleration

Acceleration of the tip of the plane is 0.17724 m/s²
Answer: n = c / v" "c" is the speed of light in a vacuum, "v" is the speed of light in that substance and "n" is the index of refraction. According to the formula, the index of refraction is the relation between the speed of light in a vacuum and the speed of light in a substance.
Explanation: the relation is the vacuum and the speed of light in a substance.