Question

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.

Answer 1

The expected time period between the observations of lightning and thunder would be 22.5 s.

How to calculate the time of sound waves?

The time taken by sound to reach a certain position can be calculated by the speed formula,

$S = \dfrac dt$

Where,

$S$ - speed = 0.343 km/s

$d$ - distance = 7.5 km

$t$ - time = ?

Put the values in the formula,

$0.343 = \dfrac {7.5} t\\\\t = \dfrac {0.343}{7.5}\\\\t = 22.5$

Therefore, the expected time period between the observations of lightning and thunder would be 22.5 s.

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