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by marieanand on January 23rd, 2007

marieanand

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Two identical tubs of cold water are placed into two cars - one black, one white (both exposed to the hot sun). Which tub of water will heat up first?

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Answers. 9 helpful answers below.

  • by Anonymous on January 23rd, 2007

    Anonymous

    I would have thought the black car's water.
    As the black exterior would absorb more heat than the white car (which would reflect a proportion of the heat).
    I think the difference would be not statistically significant if you actually did the experiment though :)

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  • by elle_000 on January 23rd, 2007

    elle_000

    Black it seems to attract more sunlight thus making it hotter inside the car.

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  • by Carluck on January 23rd, 2007

    Carluck

    I think black. Black absorbs the heat while the white car reflects heat.

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  • by Firebrand on January 23rd, 2007

    Firebrand

    The one in the white car ACTUALLY I THINK THE ONE IN THE BLACK CAR would probably be correct Sorry I cannot think straight

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  • by james the first on March 13th, 2008

    james the first

    Black absorbs and radiates heat. White reflects it.
    During the day the black car would absorb more heat from the light. The white car would reflect the light.
    At night, though, the white car would stay warmer longer since it would relect the heat in the car. The black car would radiate the heat.

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  • by Abbyguy on January 23rd, 2007

    Abbyguy

    White. I've heard of this experiment being done I think it was on Mythbusters, but I don't remember the reasoning behind it?

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  • by 8 Jan 2004-10 Dec 2009 on January 23rd, 2007

    8 Jan 2004-10 Dec 2009

    Both will heat up at the same time. AS for which one heats FASTER, that is a separate question ;)

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  • by justcorr on July 24th, 2007

    justcorr

    black. it holds in heat more then the white

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  • by Teri00 on January 23rd, 2007

    Teri00

    I think the show "Mythbusters" just did something on this - the black car heats up faster and retains heat longer than a white car. Might want to check their website:

    http://dsc.discovery.com/fansites/mythbusters/mythbusters.html

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