먼저번에 복잡하게 계산기 두들기는 방법 올렸었는데... 인공지능 덕분에 몇초만에 정답을 아주 쉽게 뽑아주네요.. https://chat.openai.com/ 질문 : 20도씨 물1리터를5분이내에 60도까지 가열하려면 몇와트의 히터가 필요한가? How many watts of heater is required to heat 1 liter of water from 20 to 60 degrees in 5 minutes? To calculate the required wattage of a heater to heat water from one temperature to another within a given time frame, you can use the formula: Energy (in joules) =..