a.what is eather?b. what is dark matter? c. how black hole generate? d.E=mc^2, give explanation of this??
Answers
Answer:
1. In chemistry, ether is a volatile liquid) which has a pleasant smell and catches fire easily.
Ether also refers to the sky, in a literary sense.
2.Dark matter: When scientists observed the movement of galaxies in the universe, it seemed like there was not enough matter to keep the galaxy together.
For the galaxies to remain as we see them, the scientists theoriszed that there had to be some form of invisible matter in the galaxies.
This matter is called Dark Matter.
Dark Matter doesn't interact with normal matter in any way, expect for its gravity.
There are many theoties as to what dark matter could be, but we don't have any way of testing them.
3.Black holes are very interesting objects, at least according to me.
They are usually formed when a large star(many many times latger than our sun)
"dies".
When nuclear fusion stops in the star's core, the gravity all the stuff in the star is too strong and it all collapses inward.
This causes the formation of a black hole.
4. E = mc² is probably the not famous formula in physics. It was derived by Albert Einstein.
What it says is basically this:
There is a ridiculously huge amount of energy in a small amount of matter.
And matter and energy are interchangeable.
(E is obviously energy and m us mass, c is the speed of light in vacuum)
I swear to God physics is my life and you made my day by asking this question. So, Have a nice day!