Answer: Magnets have a force which is known as no contact force. This force tries to attract the metallic objects near it, which makes it move.
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Answer:
A chemical reaction happens when substances break apart or combine to form one or more new substances.
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Teorema general de la hidrostática
Todo cuerpo sumergido total o parcialmente en un fluido experimenta un empuje hacia arriba igual al peso del fluido (gas o líquido) desalojado
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