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Physics, 11.01.2020 06:31 adeline12401

Suppose a spacecraft orbits the moon in a very low, circular orbit, just a few hundred meters above the lunar surface. the moon has a diameter of 3500 km, and the free-fall acceleration at the surface is 1.6m/s2. how fast is this spacecraft moving?
a. 53 m/s
b. 75 m/s
c. 1700 m/s
d. 2400 m/s

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