A should be the correct anwser, so sorry if i’m wrong
You need to know the laws<span> of motion and gravity </span>discovered<span> by English physicist Isaac </span>Newton<span>, and the </span>laws<span> of orbital motion</span>discovered<span> by German astronomer Johannes Kepler. ... </span>Newton's law<span> of universal gravitation states that gravitational force decreases with distance and mass.</span>
Answer:
There were also things that put the South at a disadvantage. One of the main weaknesses was their economy. They did not have factories like those in the North. They could not quickly make guns and other supplies that were needed.
nation:
<span>That's an interesting question. Feudal Japan had a more formalized and ritualized kind of culture than feudal Europe did; elaborate rules of courtesy applied at all levels of society, whereas European peasants were pretty crude for the most part. In both societies there was a unifying religious principle, which in Europe was Christianity and the authority of the Church, and in Japan was shintoism and the authority of the Emperor. In both cases, a social hierarchy attempted, with considerable success, to control everyone's lives; everyone owed their fealty to someone, except for the kings in Europe or the Emperor in Japan, who didn't owe loyalty to anyone, since there was no higher authority (at least, not counting deities). Both societies had similar types of weaponry (European armor was considerably tougher) and skilled swordsmen were much to be feared and respected. In the lower classes, life was cheap. Neither society had any concept of human rights; only the nobility had rights.</span>