clean water supply and improved technology
It is certainly true that nationalism has its upsides. A national consciousness led to the creation of states (instead of feudal regions or city-states) and remembering traditions and your history is important because it connects you to other people. However, being a national means identifying as something; hence , you are different from others. At some points, nationalism leads to despising other populations either because they are different and have different traditions or because they are simply unknown to us. In its worst instances, nationalism has led to nazism and genocide; the notion that a nation is better than another is the start of such actions. Hence, it is important that despite having a proud knowledge of our history and our identity, we also reach out towards other cultures, accept them and learn from them.
Answer Choice: C
A political system is also another term for a government system.
Answer: D) slaves from the Americas were sold in Africa in exchange for finished goods
Explanation:
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.
