An observer watching a fireworks displays sees the light from an explosion and hears the sound 2 seconds later how far was the explosion from the observer(speed of sound is air 340m/s)
since light is so much faster than sound, the elapsed time is basically just the time it takes for the sound to travel. Recall that
distance = speed * time
now just use your numbers
To determine how far the explosion was from the observer, we can use the formula:
Distance = Speed × Time
Given that the speed of sound in air is 340 m/s, and the time delay between seeing the light and hearing the sound is 2 seconds, we can substitute these values into the formula to find the distance:
Distance = 340 m/s × 2 s
Distance = 680 m
Therefore, the explosion was approximately 680 meters away from the observer.