Question

what does it mean when the compressions of a longitudinal wave are far apart? the wavelength is longer. the wavelength is shorter. the amplitude is higher. the amplitude is shorter.

Explanation:

In a longitudinal wave, the wavelength is the distance between consecutive compressions (or rarefactions). If compressions are far apart, this distance (wavelength) increases. Amplitude in a longitudinal wave relates to the density of particles in compressions (or rarefactions), not the spacing between compressions.

Answer:

The wavelength is longer.