user-avatar
hoanghai7100@gmail.com
2 năm trước
Một nồi đồng có khối lượng 400g chứa 2l nước ở 20°C.Tính nhiệt lượng cần thiết để đun sôi nước . Cho nhiệt lượng của nhiệt dung riêng của đồng và nước là:C¹= 380J/kg.k; C2=4200J/kg.k
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

e đang cần gấp, mọi ng giải thích cho e với ạ 1.John’s mistake was ______. a. be late for work three times b. late for work three times c. had been late for work three times d. that he had been late for work three times 2.______ seems to be to enjoy himself. a. That was his only purpose in Me b. With his only purpose in life c. It was his only purpose in life d. His only purpose in life 3.______ depends on ______ a computer or not. a. That you will get the job / whether you can use b. You will get the job / whether you can use c. That you will get the job / you can use d. You will get the job / you can use 4.The school library is an interesting place ______ you can get necessary information. a. in where b. which c. from that d. from which 5.______ flower gets its smell from ______ oil that the plant produces. a. The/an b. A/the c. 0/0 d. A/an 6.What if I _____ you that there's a good chance I can get tickets for the concert? A. were to tell B. were telling C. have told D. would to tell 7._____ they get the letter tomorrow, you still won't get a reply before the weekend. A. Even though B. Even if C. While D. However 8.

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team