hlhunter11p8f0o0
05.11.2020 •
Chemistry
(30 Points!) What is the relative size and composition of the universe, a galaxy, and a solar system?
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Ответ:
The end of the solar system is about 122 astronomical units (AU) away from the sun, where one AU is 93 million miles (150 million kilometers).
Most of the galaxies are 1,000 to 100,000 parsecs in diameter
The size of the universe is unknown
Explanation:
Ответ:
after 1st life the number of isotopes remaining =100/2=50
after 2nd half life the number of isotopes remaining=50/2=25