写清楚点,谢谢了、以初三角度回答用一个 标有(220V 1000W)的电热水器来烧水,该电热水器正常工作20min,可将质量为5Kg温度为20℃的水加热到60℃.水的比热容为4.2*10³J/(kg·℃).求这段时间
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![写清楚点,谢谢了、以初三角度回答用一个 标有(220V 1000W)的电热水器来烧水,该电热水器正常工作20min,可将质量为5Kg温度为20℃的水加热到60℃.水的比热容为4.2*10³J/(kg·℃).求这段时间](/uploads/image/z/6767082-18-2.jpg?t=%E5%86%99%E6%B8%85%E6%A5%9A%E7%82%B9%2C%E8%B0%A2%E8%B0%A2%E4%BA%86%E3%80%81%E4%BB%A5%E5%88%9D%E4%B8%89%E8%A7%92%E5%BA%A6%E5%9B%9E%E7%AD%94%E7%94%A8%E4%B8%80%E4%B8%AA+%E6%A0%87%E6%9C%89%EF%BC%88220V+1000W%EF%BC%89%E7%9A%84%E7%94%B5%E7%83%AD%E6%B0%B4%E5%99%A8%E6%9D%A5%E7%83%A7%E6%B0%B4%2C%E8%AF%A5%E7%94%B5%E7%83%AD%E6%B0%B4%E5%99%A8%E6%AD%A3%E5%B8%B8%E5%B7%A5%E4%BD%9C20min%2C%E5%8F%AF%E5%B0%86%E8%B4%A8%E9%87%8F%E4%B8%BA5Kg%E6%B8%A9%E5%BA%A6%E4%B8%BA20%E2%84%83%E7%9A%84%E6%B0%B4%E5%8A%A0%E7%83%AD%E5%88%B060%E2%84%83.%E6%B0%B4%E7%9A%84%E6%AF%94%E7%83%AD%E5%AE%B9%E4%B8%BA4.2%2A10%26%23179%3BJ%2F%EF%BC%88kg%C2%B7%E2%84%83%EF%BC%89.%E6%B1%82%E8%BF%99%E6%AE%B5%E6%97%B6%E9%97%B4)
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