contestada

Sound travels at a speed of about 340m/s in the air . How long will it take an explosion to be heard from a distance of 20 miles away?

Respuesta :

Shinrinyoku
20 miles = 32186.9 meters
32186.9 / 340 = 94.667352

It will take 94.667 seconds to hear an explosion from 20 miles away.