A general rule for estimating the distance in kilometers between an observer and a lightning bolt is to count the number of seconds between seeing the lightning and hearing it,and dividing by
A)2.
B)3.
C)4.
D)5.
E)none of the above

Question

Quizplus · Accepted Answer

The correct rule to estimate the distance in kilometers between an observer and a lightning bolt is to divide the number of seconds by 3. This is because sound travels at approximately 343 meters per second in air at room temperature and normal atmospheric pressure. Therefore, dividing by 3 gives an estimate of the distance in kilometers.

A General Rule for Estimating the Distance in Kilometers Between