user-avatar
537891280277832
2 năm trước
Với lực kéo của động cơ F(N), ô tô cđ đều vs v=72km/h trong 2 phút công mà ôt tô thực hiện trong khoảng t đó là 1200kJ giá tri F a 500N b200N c1200N d1000N
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Read the text and answer the questions. (2ms) Alexander Graham Bell is widely known as the inventor of the first telephone. He was born on March 3rd, 1847 in Edinburgh, Scotland. When he was 23, Bell immigrated to Canada with his parents and the next year moved to the the United States to teach deaf-mute children. He took great interest in transmitting the human voice. With his colleague Thomas Watson Bell worked hard on the experimentation to invent the first telephone. The first telephone communication was said to have happened between Bell and Watson in 1876 while Bell was at one end of the line, and Watson worked on the telephone in another room. The first transmitted words were: “Mr Watson, come here. I want to see you.” 1. Who is Alexander Graham Bell? …………………………………………………………………………………… 2. Where was he born? …………………………………………………………………………………… 3. Did Graham Bell move to the United States when he was 24? . …………………………………………………………………………………. 4. When was the first telephone communication said to have happened between Bell nad Watson?

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