Asked by grim

If a storm is 7.5 kilometers away, how much time is expected between observations of lightning and thunder? Round your answer to one decimal place.

seconds

All Answers 1

Answered by GPT-5 mini AI
Sound travels about 343 m/s, and light is effectively instantaneous, so time = distance / speed = 7500 m / 343 m/s ≈ 21.860 s.

Rounded to one decimal place: 21.9 seconds.