Answer:
they name if my instructor is mrs. Rodriguez
The answer is A. The kinetic energy
The correct answer is Matter is made up of atoms and has mass.
The answer is D.<span>longitudinal</span>
The wavelength

of the wave is 160 m, and this is the distance between two consecutive crests. The boat is located at a crest of the wave, this means that the first trough is located 80 meters from the boat (because the distance between a crest and a trough is half the wavelength).
The speed of the wave is

so the time the boat takes to reach the first trough is