Question

what is the difference between a mechanical wave and an electromagnetic wave? a mechanical wave travels through empty space, while an electromagnetic wave travels through matter. a mechanical wave has a short wavelength, while all electromagnetic waves have long wavelengths. a mechanical wave has a high frequency, while all electromagnetic waves have low frequencies. a mechanical wave travels through matter, while an electromagnetic wave travels through empty space.

Explanation:

Mechanical waves require a medium (matter) to propagate, like sound waves in air or water waves. Electromagnetic waves, such as light, can travel through a vacuum (empty space) as they are composed of oscillating electric and magnetic fields.

Answer:

D. A mechanical wave travels through matter, while an electromagnetic wave travels through empty space.