Một vật có nhiệt năng 100J, sau khi nung nóng nhiệt năng của nó là 400 J. Hỏi nhiệt lượng mà vật nhận được là bao nhiêu?

Các câu hỏi liên quan

1. world / change. Things / stay the same. ………………………………………………………………………………………..…… 2. games / hold / every year. …………………………………………………………………………………………..… 3. I / lived / London / long time / before / met my sister. …………………………………………………………………………………………..… 4. You have a friend who is learning Arabic. You ask: How long / learn / Arabic? …………………………………………………………………………………………..… 5. If / weather / fine / play soccer. ………………………………………………………………………………………..…… 6. She / not / tired / went to bed early. …………………………………………………………………………………………….. 7. Look, they / cups of tea / and / sandwiches. …………………………………………………………………………………………….. 8. If / no taxis / we’ll have / walk there. …………………………………………………………………………………………….. 9. Thank / much for / birthday present. ………………………………………………………………………………………..…… 10. I / interested / films / children. …………………………………………………………………………………………..… 11. My mother / reward / me / new pen / my hard study / last week. ……………………………………………………………………………………..……… 12. Potatoes / grow / field / last year. ……………………………………………………………………………………..……… 13. If / today / be / Sunday / I / go / visit / brother. ………………………………………………………………………………………..…… 14. husband / died / five years / left / with three children / no money. …………………………………………………………………………………………..… 15. I / look forward to / your letter / soon. …………………………………………………………………………………………..…