The universe is forever expanding and contains about two trillion galaxies, that contain planets, stars, and other planetary material. It has been around for 13.8 billion years and is continuously expanding. According to scientists, invisible energy and invisible matter constitute 95% of the universe, with the remaining 5% as the observable matter.
What part of the universe is made up of a vacuum?
Is the pressure in a vacuum high or low? Explain your answer.
Answers
Answer:
universe is made up of 95 percent vacuum
pressure in vacuum is not high
Answer:
Outer space is the expanse that exists beyond Earth and between celestial bodies. outer space is not completely empty- it is a hard vacuum containing a low density of particles.predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust, an ccosmic rays.
pressure in a vaccum is low. Pressure is a result of collisions of gas molecules/atoms with the walls of a container, so the fewer molecules/atoms present the lower the pressure. ... When you create a vacuum, the vacuum pump removes a large amount of the gas from the container, so the pressure of the gas falls to a very low value.
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