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faltersainse [42]
3 years ago
6

A light-year is a unit of

Physics
2 answers:
dybincka [34]3 years ago
6 0
A unit of length used to express astronomical distances.
S_A_V [24]3 years ago
4 0
A light-year is a unit of length or distance.
It's defined as the distance that light (or any electromagnetic
wave) travels through vacuum in one Earth-year.

==>  about  9,460,730,000,000,000 meters

==>  about  5,878,620,000,000 miles
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