This is the 3182nd most frequent Russian word.
мощные
"Мощные" - powerful, strong.
In this sentence, "мощные" describes the strength and force of the waves, emphasizing their impact and size.
Мощные волны разбивались о скалы.
Powerful waves crashed against the rocks.
Here, "мощные" is used to define the engines' capability to produce great power or energy.
Эти мощные двигатели обеспечивают самолету большую скорость.
These powerful engines provide the airplane with high speed.
In this context, "мощные" pertains to the persuasiveness or effectiveness of the arguments, emphasizing their convincing nature.