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Elanso [62]
3 years ago
12

Scientists believe that the earth's core is:

Chemistry
1 answer:
Rus_ich [418]3 years ago
5 0
They believe that its solid and that the inner part of the core in iron
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Why does the amount of energy available change as you move from one trophic level to the next?
olga_2 [115]

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency (TLTE) measures the amount of energy that is transferred between trophic levels.

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How does air bubbles affect density of a solid object?
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3 years ago
Consider a gray and opaque surface at 0°c in an environment at 25°C. The surface has an emissivity of 0.8. if the radiation in
valina [46]

The radiosity of this surface is 299.95W/m².

<h3>Calculation :</h3>

Given, € 0.8

Ta=0°C 273K

For opaque body., T = 0

a+ p = 1

€ = a (Kirchoff's Law)

p = (1-E)

Radiosity = leaving energy from the surface

= px 240 +€σT4

= (1-E) × 240 +0.8 x 5.67 x 10-8 (2734)

= (1-0.8) × 240 +0.8 x 5.67 × 10-8 (2734)

= 299.95W/m²

So, now after doing the calculations we can say that the radiosity of the surface was 299.95W/m².

To know more about Radiosity please click here : brainly.com/question/14937321

#SPJ4

7 0
2 years ago
 
Olin [163]

1. C. Linus Pauling

2. C. chemistry

3. A. atom

4. D. protons, neutrons and electrons

5. B. positively

6. A. negatively

7. C. uncharged

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10. D. protons in the nucleus

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12. B. the pull of gravity on matter

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15. C. symbols

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20. C. a number and a unit

21. B. the weight of an object

22. D. 1,000

23. C. 100

24. B. uncertain

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29. C. atomic number

30. A. 5 g/cm3

31. D. temperature

32. C. meter

33. B. 2.2

3 0
3 years ago
Can you tell me the answer​
Nesterboy [21]

Answer:

noo sorry

Explanation:

8 0
3 years ago
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