A sun-like star is barely visible to naked-eye observers on earth when it is a distance of 7.0 light years, or 6.6×10¹⁶m, away. The sun emits a power of 3.8×10²⁶W. Part A Using this information, at what distance would a candle that emits a power of 0.11 W just be visible?

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To determine the distance at which the candle would be just visible we can use the f... View the full answer