You want to resolve 5.5 m features on the Moon with a 2 m telescope using 550 nm light. How close (in km) do you need to be? How does the orbital velocity (in km/s) at this altitude on the Moon compare to the orbital velocity at this altitude on Earth? (M = 5.97 x 1024 kg, R. = 6.38 x 103 km, M, = 7.35 x 1022 kg, R = 1740 km.) M.
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