Answer:
Common
Usual
Universal
Explanation:
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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.
~Hello there!
Your question: The __________ Mountains are Africa's longest mountain chain and are located in the northwestern part of the continent.
Your answer: The Atlas Mountains are Africa's longest mountain chain and are located in the northwestern part of the continent.
Any queries ^?
Hope this helps!
Answer: In Medieval Europe, knights pledged loyalty to vassals, who in turn pledged theirs to powerful lords, and serfs labored in the fields.
Explanation:
A rigid hierarchy refers to one where people who are born into a certain position in life, find it quite hard to move from it or rather one where there are different social classes and people had to be classified in one class for the system to work.
The system during medieval times was much like this. Social classes existed that determined a person's worth in society such as the knights, vassals, Lords and Royals. There was also the serfs who were considered the lowest in the hierarchy.
The statement is - True.
Most of the inter-faith conflicts are based on disputes about the differences of the faiths, which one is right and which one is wrong, who's deity is the real one and who's fake, the moral values, the principles, etc.
All around the world there's lots of religion based conflicts, be it between the Christians and The Muslims, the Muslims and the Sikhs, the Muslims and Hindus, the Muslims and the Judaism followers, the Muslims and the Buddhists, to name some of the few.
Even though it might come as harsh and selective, but the Islam seems to be the one that has problems with all other religions, while the others are much more tolerant towards each other.
