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4 years ago

12

What occurs when a rock is crushed into a pile of fragments?

1 answer:

Norma-Jean [14]4 years ago

3 0

The answer to the question is the total surface area increases and chemical composition changes. Consider the breakdown of rock into smaller pieces, these fragments vary from huge rocks to smaller sizes. As they are so crushed and broken they tend to occupy much of the surface area than when its just a huge rock.

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3) When the temperature of a blackbody increases from 900 K to 2300 K, by what factor does the total power of the electromagneti

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Answer:

The electromagnetic radiation per-unit- area increase by 42.65 times.

Explanation:

The radiation per-unit- area (P) is directly proportional to the fourth power of the temperature. Thus,

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T₁ = 2300 K

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So,

<u>P₁ = 42.65 P₀</u>

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