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Tham khảo:
Hợp chất với Hiđro là QH3 => Chất cao nhất với oxi có công thức là: Q2O5
Ta có : (2.Q) / (16.5) = 25.93/74.07
=> Q= 14 => Q là nguyên tố Nitơ
\(\varphi_1=75.10^6W\)
\(P=3000kN=3.10^6N\)
máy bay chuyển động đều
\(F=P+F_c\)=375.104N
công động cơ thực hiện
\(A=F.s=\)375.107J
thời gian máy bay bay được 100m
\(\varphi=\dfrac{A}{t}\Rightarrow t=\)50s
Please chao.Toi named Duyen, I would like to introduce myself and my family. This year I was 15, a student at Middle School School Chinh.So phượt My preference is to go and eat, chat with friends. I lived and grew up in Gia Lai. My family has 6 people: father, mother, two sisters and brother and me. My father named Thang, 42, and his farm. My mother called the center, she was 41, and also a farmer. My first sister named Louise, she and her 21-year-old university student exchange thuong.Chi my second sister school students as well as college administrators are traveling with children living san.Cuoi my son, she is 12 years old, junior high school, Nguyen Chi Thanh. She studied hard and behaved ngoan.Vao the spare time I usually spend family together and talk about our academic and things in the song.Toi feel very happy to be living in this family.
I love my family so much. I will try to learn and do well to help my family. I hope that my family will always be as happy as now.
Thank you for listening to my thoughts.
Hello. My name is Duyen, I would like to introduce myself and my family. This year I am 15 years old, a student at Middle School School Chinh. My preference is go and eat, chat with friends. I live and grow up in Gia Lai. My family has 6 people: father, mother, two sisters and brother and me. My father name is Thang, 42, and works on his farm. My mother name is Tam, she is 41, and also a farmer. My first sister name is Phưng, she is 21-year-old and is a student at the University of Foreign Trade . My second sister school students as well as college administrators are traveling with children living san.Finally my brother, he is 12 years old, junior high school, Nguyen Chi Thanh. She studied hard and behaved ngoan.In the spare time I usually spend family together and talk about our academic and things in the song.I feel very happy to be living in this family.
I love my family so much. I will try to learn and do well to help my family. I hope that my family will always be as happy as now.
Thank you for listening to my thoughts.