3 years ago

Who was the first culture to determine that the earth was a sphere and create maps that represented as a sphere?

Geography

1 answer:

Yuliya22 [10]3 years ago

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The Greeks! The Pythagoras!

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The wind is described as geostrophic when:

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Answer:

B Winds blow in a straight line parallel to contour lines on a weather map

Explanation:

Geostrophic Wind -

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It is a theoretical wind which results from the balance between the pressure gradient force and the Coriolis force .

Hence , the correct description for the Geostrophic Wind is option ( b ) .

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A person trapped outside during a thunderstorm should

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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,

P ∝ T⁴

For, when the temperature is raised from T₀ to T₁ , the radiation per-unit- area is related to as:

$\frac {P_1}{P_0}=\frac {T_1^4}{T_0^4}$

T₀ = 900 K

T₁ = 2300 K

$\frac {P_1}{P_0}=\frac {2300^4}{900^4}$

So,

<u>The electromagnetic radiation per-unit- area increase by 42.65 times.</u>

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