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If you let an N95 mask sit for 14 days, is it safe to use again?
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Why would 3 light bulbs with the same resistance connected in a DC series have the same brightness? Doesn't the voltage drop over each light bulb making the electrons less energized as they go through to the next bulb?
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r/askscience
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If you let an N95 mask sit for 14 days, is it safe to use again?
1
askscience
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Why would 3 light bulbs with the same resistance connected in a DC series have the same brightness? Doesn't the voltage drop over each light bulb making the electrons less energized as they go through to the next bulb?
1
askscience
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