A student shakes a tube containing small balls to model the movement of particles in a gas. 1

1 answer:

5 0

The balls move randomly.

Because gas molecules are known for their movement and the above statement says “to model the movement”

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To find the change in the internal energy of a system, which equation would you use?

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How are supernovae involved in new planet formation?

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Supernovae refer to the last stages in a star's life, when it explodes and disappears completely. After this explosion, there are several things that can happen - a black hole may appear or there may be star dust hovering in the universe. Well, this dust, and other materials that came from the massive star that exploded are used to create new planets. Every planet we know of emerged from the dust and particles in the universe - so this means that the same dust coming from supernovae can form new planets as well.

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> When did the impact of human societies greatly increase

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Production and use of industrial chemicals boomed. Agricultural and pharmaceutical chemicals are implicated in altering the environment as heavy use and their impacted were recorded at the half of the 20th century.

Pollutants from industries and farms become more pronounced at the period even up till now.

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Is there a specific beginning or end in the water cycle? why or why not?

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I don't think the water cycle has a beginning or ending because all the water in the world is always in various stages of the cycle. It's kind of like asking if a circle has a beginning or ending.
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