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例1(福州市)家庭中常用电热水壶烧水,它具有方便、环保的优点,下表是小红同学收集到的有关烧水的数据,请按要求作答.(设电阻值不变,计算结果保留小数点后两位)
Example 1 (Fuzhou) Household electric kettle is often used to boil water. It has the advantages of convenience and environmental protection. The following table shows the data collected by Xiao Hsung students about the boiled water. Please answer as required. (The resistance value is not changed. The result is two decimal places.)