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const2013 [10]
3 years ago
7

A lack of skilled workers is an example of

Geography
1 answer:
Charra [1.4K]3 years ago
5 0

Answer: A

Explanation:

You might be interested in
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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3 years ago
The delta of which river has been an important region to Southwest Vietnam?
joja [24]
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3 years ago
Why was it very difficult to get laws passed under the Articles of Confederation?
gladu [14]
9 of the states had to agree before a law was passed.
7 0
3 years ago
Acid precipitation is caused by a mix of_____. A. respiration, carbonic acids, and seawater. B. water, soil, and air. C. hydroge
Komok [63]
Acid precipitation is caused by a mix of <span>sulfur dioxide, carbon dioxide, and nitrogen oxide. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that you were looking for and it has actually come to your help.</span>
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4 years ago
How long was one day on earth when the earth just formed ?
saveliy_v [14]

Answer:

the day lasted 12 hours.

Explanation:

8 0
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