Answer:
The speed of sound in air varies with temperature. At a temperature of -18°C, the speed of sound in air is approximately 306.3 m/s.
To find how far the sound wave has moved in 10 seconds, we can use the formula:
distance = speed x time
distance = 306.3 m/s x 10 s = 3063 m
Therefore, the sound wave has moved 3063 meters in 10 seconds.
Step-by-step explanation: