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April 20, 2014

Homework Help: general physics

Posted by justin on Thursday, July 25, 2013 at 2:18pm.

When you take a bath, how many kilograms of hot water (40.8 C) must you mix with cold water (11.3 C) so that the temperature of the bath is 30.9 C? The total mass of water (hot plus cold) is 190 kg. Ignore any heat flow between the water and its external surroundings.

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