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Sagot :
A robot at that distance sees the light flash at time = 2500sec
Given,
A robot sees the flash light from distance = 5 astronomical unit (AU)
A robot at that distance sees the light flash at time = ?
Solution,
An Astronomical Unit can be defined as , the mean distance of the center of the Sun from the center of the Earth.
1 Astronomical Unit (AU) = 1.496 × 10¹¹m
Time for the light reach to the earth T = 8min 20 sec
speed of light c= 3 ×10¹¹m/s
T = distance/speed
Distance = 5AU
Speed = c
therefore ,
T time = 5 AU/C
AU/C= 5Time= 5 ( 8×60 + 20 )sec
Time = 2500 sec
A robot at that distance sees the light flash in 2500 seconds.
To know more about astronomical unit (AU)
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