Question

the distance of one of the most distant known galaxies from the earth is 5*10^8 light year.find the distance in km and express it in the standard form.


solve it with explanation

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Answer 1

Answer:

light-year is the distance light travels in one year. How far is that? Multiply the number of seconds in one year by the number of miles or kilometers that light travels in one second, and there you have it: one light-year. It's about 5.88 trillion miles (9.5 trillion km).Jul 31, 2018