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Contact [7]
2 years ago
11

Drawing from social Darwinism, Friedrich Ratzel's model of the state -- in which state growth and change were "natural" and inev

itable -- portrayed the state as a_______________.
Geography
1 answer:
Anna71 [15]2 years ago
7 0

Answer:

Drawing from social Darwinism, Friedrich Ratzel's model of the state -- in which state growth and change were "natural" and inevitable -- portrayed the state as a <u>biological organism. </u>

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Calculate the fraction of the total emitted sunlight that reaches Earth. (Hint: Imagine a sphere around the Sun the size of Eart
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Answer:

1.305 * 10⁻¹⁰

Explanation:

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Area\ of\ earth\ disk=\pi r_{planet}^2\\\\but\ r_{planet}=6371\ km=6371000\ m\\\\Area\ of\ earth\ disk=\pi (6371000)^2\\\\a=1.5*10^8\ km=1.5*10^{11}\ m\\\\Area\ of\ earth\ orbit=4\pi a^2=4\pi (1.5*10^{11})^2.\\\\Therefore:\\\\\frac{Area\ of\ earth\ disk}{Area\ of\ earth\ orbit}=\frac{\pi (6371000)^2}{4\pi (1.5*10^{11})^2}  =4.5*10^{-10}\\\\

This ratio represents the fraction that would be blocked if the planet did not reflect any light, hence:

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The correct answer is the following.

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2 years ago
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