Before a star is born, the matter that will become the star exists as a interstelar gas and dust. The stars are formed as a result of the forces:the force of gravity compresses atoms in the interstellar gas. Then the fusion reaction begins. During this fusion reaction the temperature gets extremely high and all the material evolves into a hot bright star.
Anthropology. It focuses on human behavior.
Answer:
Their discoveries both had to do with the relationship of the earth to the sun and universe. That the earth wasn't the centre of the universe and that the sun didn't rotate round the earth but rather the other way.
Explanation:
Nicolaus Corpenicius (19 February 1473 - 24 May 1543) was a scientist, astronomer and renaissance era polymath, who was fascinated with stars. He was the first to formulate a model of the universe that had the sun at the centre of the universe instead of the earth. It was such a groundbreaking discovery. Corpenicus is often referred to as the father of Modern Astronomy.
Galileo Galilie (15 February 1564- 8 January 1642) was an italian physics philosopher who was famous for his discovery that the earth rotated round the sun. it was a big deal in his time, because, the prevailing thought in his day, was that the earth was the centre of the universe and the sun rotated round the verse. Though Corpenicus was the first to discover and publish it. Further discoveries and inventions by Galileo proved corpenicus as true.
There are several information's already given in the question. The answer can be easily deduced using those information's.
Time = 3.0 * 10-3 seconds
Impulse = 0.30 newton
Then
Force = Impulse/Time
= 0.30/3.0 * 10-3
= 1 * 10^3 newtons.
I hope the above procedure is clear for you to understand and it has actually come to your great help.
Answer:
23
Explanation:
atomic structure extension is very difficult to read but when done right you should get 23 yw