Answer:
France may have been Britain's key ally, and the British government accepted that it had no choice but to stand by France for so long as the war was being fought.
Explanation:
Streak, color, luster, crystal structure.
Answer: is constant
Explanation:
In order to analyze the velocity of the stars within a galaxy, the <u>galaxy rotation curves</u> (developed by the American astronomer Vera Rubin) are used. These graphs are elaborated as a scatter diagram in which the orbital velocity of the stars present in a galaxy is represented on the Y axis and the distance of these stars to the center of the galaxy on the X axis.
Thanks to this diagram, it has been possible to observe a characteristic behavior in the rotation speed of the stars (and gas) present in the galaxies, which differs from the rules of the orbital movement of the planetary systems postulated by Newton and Kepler.
This means that in these galaxy rotation curves it has been observed that the rotation speed of stars and gas is "constant", regardless of the distance to the center of the galaxy. This discrepancy and these results were then used to demonstrate the existence of dark matter in the universe.
Answer:
headers
Explanation:
A table is the visualization of data by representing attributes or data in series of rows and columns. One important and key feature of a table is the table header. The table header gives a well defined title to use to which table is put to. It can be a "table of age of goats and gender". All tables must be titled with a header in this manner.