Hey there, The answer is A. Free electrons.
Grains contain gold in forms that seem tailor-made for industrial use. Rumpelstiltskin, the fairy-tale rogue who spun straw into gold, has nothing on Miguel Yacaman and Jorge Gardea-Torresdey. The gold appears as particles mere billionths of a meter wide. ...
Answer:
A
Explanation:
The formula for mechanical energy is mechanical energy = kinetic energy + potential energy.
The answer is D) n2, hope this helped!!
An engineer's solution to a problem would involve designing shatter-resistant windows for a car.
<h3>Who is an engineer?</h3>
An engineer is a person who applies the knowledge of science to design tools and equipment which are used to solve the problems facing man.
An engineer specializes in the scientific field of engineering.
Some tools or devices produced by engineers are machines and vehicles such as cars and aeroplanes.
Therefore, an engineer's solution to a problem would involve designing shatter-resistant windows for a car.
Learn more about engineering at: brainly.com/question/17169621
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