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AURORKA [14]
3 years ago
8

What kind of energy transformation happens when a boy uses energy from a sandwich to run the race​

Chemistry
1 answer:
Nezavi [6.7K]3 years ago
3 0
First when a person began to digest the food it becomes a chemical energy. The chemical energy is converted into a kinetic energy. As the body gets energy the kinetic is converted into a mechanical energy.

So here the sandwich is the food I hope it is accurate and helpful:)
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joja [24]

Answer:

magnesium metal melts = physical change

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Explanation:

<em>Physical changes</em> are those in which the identity of the subtance <u>remains unaltered</u>. No new compounds are formed. They involve generally changes in <u>agreggation states of matter</u>: solid, liquid or gas. The first experiment, in which magnesium metal melts is a physical change because it only changes the state of matter, from solid to liquid, but it is still magnesium metal.

Conversely, <em>chemical changes</em> involve atoms combinations to form new compounds. The second experiment, in which magnesium metal ignites, is a chemical change. After the change, magnesium metal is no longer the metal but a metal oxide.

8 0
3 years ago
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6 0
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IrinaVladis [17]

Answer:

3 m/s

Explanation:

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usando la fórmula velocidad = frecuencia multiplicada por la longitud de onda.

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