Asked by physics.....

a 1500W thing heats 1.5kg of water from 18C- 59C in 3 minutes. how mcuh energy was used by the thing?
how much energy was delivered to the waterr??
Answered by drwls
This question was asked yesterday. If it was you who asked it, please review my previoys answer. I did separate calculations of the electrical power in and the power that ends up heating water.