Practice Problem 2-1c (p 2-4)
Determine the average speed in metres per second.
Express the final answer in scientific notation using the correct number
of significant digits.
(c) The moon takes 27.3 days to complete one orbit
around the earth. The average earth-moon distance is 3.84×105
km.
No! The average
distance from the earth to the moon is the radius
of the orbit.
