1) An electirc kettle provides 600kj of energy to boil some water in 10 mins.How long does it take to supply 1100kj of energy to heat some soup ?
can you tell me the steps?
physics - power
2010-04-02 10:46 pm
回答 (2)
2010-04-02 11:12 pm
✔ 最佳答案
1. SInce the kettle provides 600 kJ of energy in 10 minutes, by simple proportion, the time needed to supply 1100 kJ of energy= (1100/600) x 10 minutes = 18.3 minutes
2010-04-03 3:41 am
收錄日期: 2021-04-29 17:35:47
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