When NASA was communicating with astronauts on the moon, the time from sending radio signal on the earth to receiving on the moon was 1.28s. Find the distance from earth to the moon. (the speed of radio waves is 3.00 x 10 to the 8th power m/s)

Expert Answers

An illustration of the letter 'A' in a speech bubbles

The formula for distance is speed x time.

So d = 3.00 x 10^8 m/s x 1.28 s

d = 3.84 x 10^8 m/s, or 384 x 10^6 m/s

So the distance to the moon is 384 million meters.

Approved by eNotes Editorial Team