Respuesta :
Answer:
a. the same speed as the wave energy
Explanation:
Wave packet is only an envelope of a more localized wave. The entire wave is a combination of the discrete wave packets.
Wave is any disturbance that travels across space. A wave does not carry the particles of the medium in which travels. It carries energy from one point to another as it travels.
For an electromagnetic wave, the energy of the wave is due to the vibrations of the electric and magnetic fields of the wave. For sound waves, wave energy is the vibrations or disturbance of the particles of the medium in which the sound wave travels.
