Problem 2-1(c) Average Speed

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 \(\mathrm{3.84 \times 10^5\; km.}\)

The average distance from the earth to the moon is:
 
(A)  The radius of the orbit.

(B)  The diameter of the orbit.

(C)  The circumference of the orbit.