A 50.0-kg satellite is in a circular orbit about a planet. The potential energy of the orbit is -4.00 × 107 J. What is the speed of the satellite?
A)
1.26 km/s
B)
2.11 km/s
C)
1.44 m/s
D)
3.22 km/s
E)
894 m/s
E
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