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Otrada [13]
2 years ago
14

This kind of cloud is usually found high in

Geography
1 answer:
Anon25 [30]2 years ago
7 0

Answer:

Cirrus clouds

Explanation:

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it is possible for two stars to have different temperatures and different sizes but the same luminosity. explain how.
Darina [25.2K]

Answer:

Two stars (a and b) can have the same luminosity, but different surface area and temperature if the following condition is met:

(T_a^4)(R_a^2) = (T_b^4)(R_b^2)

Explanation:

The luminosity of a star is the total energy that produces in one second. It depends on the size of the star and its surface temperature.

L = σ(T^4)(4πR^2)

L is the luminosity f the star, T is the temperature of the surface of the star and R is its radius.  

Two stars can have the same luminosity if the relation between the radius and the surface temperature is maintained.  

To see this lets suposed you have 2 stars, a and b, and the luminosities of each one of them:

L_a = σ(T_a^4)(4πR_a^2)

L_b = σ(T_b^4)(4πR_b^2)

you can assume that L_a and L_b are equal:

σ(T_a^4)(4πR_a^2) = σ(T_b^4)(4πR_b^2)

Now, you can cancel the constants:

(T_a^4)(R_a^2) = (T_b^4)(R_b^2)

as long as this relation between a and b is true, then the luminosity can be the same.

6 0
3 years ago
Very similar fossils have been found in rock masses that are separated by oceans and thousands of miles. For example, the fossil
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The countries once were joined in one piece called Pangaea. Animals lived ON the pate boundaries of Pangaea. The plates then moved apart.

Explanation:

4 0
2 years ago
A transformation of ΔDEF results in ΔD'E'F'.
barxatty [35]

Answer:

anser is a

Explanation:

just did the test

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1. What types of landforms exist in South America that determine where its population is distributed?please don't post
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well

spring

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unsaturated zone

Explanation:

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