queenz55 queenz55

13-02-2019
Physics

contestada

Describe the extent to which you think earths orbital speed change throughout the year? Explain your reasoning.

Respuesta :

13-02-2019

Earth distance from sun:

perihelion = 1.471 * 10E8 km (nearest approach)

aphelion = 1.521 * 10E8 km (farthest distance)

M Vp Rp = M Va Ra conservation of angular momentum

Vp / Va = Ra / Rp = 1.521 / 1.471 = 1.034

So the speed change from min to max is about 3.4 %

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