The time that would elapse before a robot at a distance see the light flash is : 2000 secs
Analysis of the solution
Given data :
Distance = 4 AU
Time for light to reach the earth = 8 mins 20 seconds
speed of light ( c ) = 299,792,458 m / s
To resolve this we will apply the equation below
Time = Distance / Speed ------ ( 1 )
where : Distance= 4 AU, speed = c
Therefore :
Time = 4 AU / c
AU / c = ( 8 * 60 + 20)
Hence the time that would elapse before a robot at a distance see the light flash will be
Time = 4 ( 8*60 + 20) = 2000 secs
Learn more about astronomical units : https://brainly.com/question/12904051
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