Answer to Question #134824 in General Chemistry for allison

Question

In a thunderstorm, lightning strikes the ground 3 km away from you. The speed of sound on a terribly hot day is 0.388 km/s. How many seconds will elapse before you hear the sound? Round to the nearest tenth of a second.

Answer 1

Distance = speed × Time

Time = Distance/speed

Time=3/0.388 = 7.731s