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laiz [17]
3 years ago
14

“How bright would the sun appear to an observer on Earth if the sun were four times farther from Earth than it actually is? Expr

ess your answer as a fraction of the sun’s brightness on Earth’s surface.”
Physics
1 answer:
Alenkasestr [34]3 years ago
4 0

Like a lot of other things, (gravity, sound, electrostatic force), brightness also decreases as the square of the distance.

When the source moves to a new position that's 4 times as far away, its apparent brightness becomes (1/4^2) its original value.

That's 1/16 .

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