Pretty sure its called the 38th Parallel, or the Demilitarized Zone. :)
The statement is - True.
Mount Elbert has an elevation of 4,401 meters (which is almost three miles), and it has a prominence of 2,772 meters. It is the highest summit of the Rocky Mountains of North America. Mount Elbert also represents the highest point of the state of Colorado, and it is also the highest point of the Mississippi River drainage basin which covers 41% of the USA's territory. More specifically this peak is in the Rocky Mountains Range, Sawatch Range, Southern Rocky Mountains Range.
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.
Weather. This includes factors like temperature, humidity, wind speed, etc.
