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Nadusha1986 [10]
3 years ago
15

How will the Romans prepare for the coming war with Carthage?

Geography
1 answer:
Elden [556K]3 years ago
4 0

Answer:

they built a wall.

Explanation:

defense

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What will happen if all glacier melt?
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if all glaciers melt, then sea level would increase and then the ocean will over up the whole earth or parts of it, so it is like a big flood all over the earth and it is too high.

Explanation:

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Tectonic activity happens when changes to the Earth’s crust are caused by __________.
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Describe relative dating
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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.

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C) Carbon Film

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Pls mark as Brainliest.

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