Question

The siren from a small town fire station is heard at a location 3 kilometers away. If the air temperature is 20°C, at what velocity did the sound travel? 319 m/s 331 m/s 343 m/s 387 m/s

Answer 1

I believe the answer is 343

Answer 2

The answer is 343 m/s.

Sound is a longitudinal wave. The sound of speed is the distance it travels in a given amount of time. Its speed may vary in different air temperatures. But in 20°C, which is considered dry air, it is known that the speed of sound is 343 m/s.