What is the speed of the satellite? (The mean radius of the Earth is 6.38 ˛ 106 m.)
A. 5.9 km/s
B. 6.9 km/s
C. 7.9 km/s
D. 8.9 km/s
Answer:C
What is the speed of the satellite? (The mean radius of the Earth is 6.38 ˛ 106 m.)
A. 5.9 km/s B. 6.9 km/s C. 7.9 km/s D. 8.9 km/s