Một bóng đèn có ghi 220V- 40W, mỗi ngày sử dụng 5 giờ. Vậy trong một tháng 30 ngày điện năng tiêu thụ của nó là bao nhiêu?

Các câu hỏi liên quan

B. Make all changes and additions necessary from the following words and phrases to complete the sentences of a passage about the benefits of cycling: (1,5ms) 1. Along / jogging and swimming / cycling / be / all-round form / exercises ................................................................................................... 2. It can help you / increase / strength and energy / give / you / strong heart ............................................................................................................ 3. But / it / not / only advantage / cycling ................................................................................................................ 4. It / good exercise / people / painful feet or backs ............................................................................................ 5. However / it / important / start slowly / and build / gently ............................................................................................. 6. Doing too much / too quick / can do / damage / muscles ........................................................................................ 7. You have / doubts / take / cycling / health reasons? .......................................................................................................... 8. You / talk / your doctor / and ask / his or her advice ......................................................................................................... 9. Follow / your doctor / advice / strict / and you / have / good result ............................................................................................................. 10. If you start / cycle now / you / be / forever fit .................................................................. Giúp mình nha. Hứa cảm ơn + 5 sao !!!!