Assuming that we can measure the apparent brightness of a star, what does the inverse square law for light allow us to do?
A) determine the distance to the star from its apparent brightness
B) determine both the star's distance and luminosity from its apparent brightness
C) calculate the star's surface temperature if we know either its luminosity or its distance
D) calculate the star's luminosity if we know its distance, or calculate its distance if we know its luminosity
Question 2
What is the Tully-Fisher relation?
What will be an ideal response?
A star-forming region in the Large Magellanic Cloud.
The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil
Kazimir Malevich, Black Square.
A partial stream sampling exhaust probe being used to measure exhaust gases in parts per million ...
Punnett square of the dihybrid cross shown in Figure 3.8. There are two combinations of dominant and
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately