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.
The two factors, Temperature and Pressure, have the greatest influence on the state of each of Earth's layers.
Hope I helped!
The correct answer is C, Divides the flow of river systems in the United States into east and west.
Explanation
The continental divide is the name of the main hydrological divide in America. The divide is a mountain range that divides the eastern and western slopes. Those that are considered eastern run until they reach the Arctic and Atlantic oceans, while those that are considered western run until they reach the Pacific ocean. In the case of North America, it begins in Alaska, goes through the north of Alaska to Canada where it goes south. It continues through the western region of Canada towards the south until it reaches the United States where it crosses the states of Colorado, Montana, New Mexico, and Wyoming. Later, it reaches the Mexican territory, where it takes a central road through the middle of the country until it reaches the southern countries of Mexico, such as Guatemala, Honduras, Nicaragua, and Costa Rica. According to the above, the correct answer is C. divides the flow of river systems in the United States into east and west
Trade arises as a result of the uneven distribution of resources and e<span>ffects of uneven distribution can cause inequality and a low standard of living for those such as the elderly and single mothers. I hope the answer will help you. Thank you for posting your question here at brainly. </span>
