4. Which statement describes the general relationship between the temperature and the luminosity of main sequence stars?
a. As temperature decreased, luminosity increases.
b. As temperature decreases, luminosity remains the same
c. As temperature increases, luminosity increases
d. As temperature increases, luminosity remains the same
Hwlp

The statement  which describes the general relationship between the temperature and the luminosity of  main sequence stars is :

Option C

A star's radiance commonly relies upon

For more information refer the following link:

link

c. As temperature increases, luminosity increases

Explanation:

A star's luminosity typically depends on

the radius of the star and its temperature. It should be noted that a direct relationship exists between the temperature and the luminosity of the main sequence stars.

This simply means that when there is a rise in temperature, there is also a rise in the luminosity of the star. Likewise, when there is a reduction in the temperature, the luminosity also decreases.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

answer: tomorrow

explanation: