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V125BC [204]
2 years ago
12

What are some of the things that you are passionate about when studying geography? How do you think this subject can contribute

to make the world a more better place.
Geography
1 answer:
Charra [1.4K]2 years ago
8 0

countries size

it makes a country a better place as we know about our situation of natural resources pollution etc...

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I think it is None of the above

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What is the area of Sólheimajökull rounded to the nearest whole number?
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Answer:

The iceberg is 16 kilometers in area...8 kilo's long and 2 wide

Explanation: 8 kilo's long and 2 wide

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Mixed-use development, pedestrian-friendly design, and the incorporation of front porches and alleys are design elements of whic
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5 0
3 years ago
Which of the natural features results from the Interaction of tectonic plates ?
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Mountains because when two tectonic plates interact they create mountains
3 0
3 years ago
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
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