Dave's sister gets very stressed out during final exam time; however, Dave isn't affected by the stress. What does this illustra
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Answer:
Explanation:
A light year is a unit of length and is defined as "the distance a photon would travel in vacuum during a Julian year at the speed of light at an infinite distance from any gravitational field or magnetic field. "
In other words: It is the distance that the light travels in a year.
This unit is equivalent to , which mathematically is expressed as:
Doing the conversion:
This is the distance from Earth to Sirius in miles.