How far away did the lightning strike if it took 3 seconds to hear the thunder?
approx. 0.3 km
approx. 1 km
approx. 3 km
approx. 9 km
Sound travels through air at 331.2 meters per second, so after 3 seconds it would travel approximately 1 kilometer.
reach: rather globallightphysicssoundweather
Acceptable Piper Perabo