You hear a thunder 4 seconds after you see the lightening. How far away is the storm?

1372m

Explanation:

d (distance of the storm) = ?

t (time) = 4secs

V (velocity of sound in air) = 343m/s

The distance can be obtained by the following equation:

Velocity = Distance / time

distance = Velocity x time

distance = 343 x 4

distance = 1372m

Therefore, the storm is 1372m away