<span>An ideal machine is 100% efficient, meaning it puts out all of the energy you put in (ie. no loss due to friction..) A real machine can never be 100% efficient. You must always put more energy Into a real machine than you get out of it.</span>
Can't able to read..
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Wave energy is actually a concentrated form of solar power generated by the action of the wind blowing across the surface of the oceans water which can then be used as a renewable source of energy. As the suns rays strike the Earth's atmosphere, they warm it up.
The correct option is D.
Destructive interference is said to occur when two waves superpose in such a way that they cancel each other out. The two waves are usually of equal frequency and opposite phase, the negative displacement of one wave collides with the positive displacement of the other wave, thus cancelling each other out.<span />
Answer:
consiste en la propagación de una perturbación de alguna propiedad del espacio