Question
A sun-like star is barely visible to naked-eye observers on earth when it is a distance of7.0 light years,or6.610^16m,away. The sun emits a power of3.810^26W
A sun-like star is barely visible to naked-eye observers on earth when it is a distance of7.0 light years,or6.610^16m,away. The sun emits a power of3.810^26W
Using this information, at what distance would a candle that emits a power of0.17 Wjust be visible? Express your answer with the appropriate units.
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Earth Science
Authors: Mark Hendrix, Graham R Thompson
3rd Edition
0357120086, 9780357120088
