A dampen furnace is operate by solar power. If the solar collector have an nouns of 6.50 m^2, and..........? A water kiln is operated by solar power. If the solar collector...

A water kiln is operated by solar power. If the solar collector have an area of 6.50 m^2, and the intensity deliver by sunlight is 650 W/m^2, how long does it take to increase the warmth of 1.00 m^3 of water from 20.0ˇăC to 65.0ˇăC?
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Answers:    4hrs 29.35min.