A bat flies toward a wall, emitting a steady sound of frequency 2020 Hz. The bat hears its own sound, plus the sound reflected by the wall. How fast, in m/s, should the bat fly in order to hear a beat frequency of 31.3 Hz? The speed of sound is 340 m/s.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."