A man is positioned $110\,\text{m}$ away from a tall wall. He produces a brief, sharp sound and then listens for the echo reflected back from the wall. The speed of sound in air is $330\,\text{m s}^{-1}$. How long after producing the sound does the man hear the echo?
- A$0.33\,\text{s}$
- B$0.67\,\text{s}$
- C$1.5\,\text{s}$
- D$3.0\,\text{s}$