What is the average orbital speed of the Earth around the Sun? (Note: r = 1.5 x 1011 m and P = 3.16 107 s)
A. About 30 km/s. | ||
B. About 4.7 km/s. | ||
C. About 9.8 m/s2. | ||
D. 365 days. | ||
E. 1,000 km/s. |
Physics & Space Science
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