Viết một bài văn nghị luận về câu nói 'Bị đánh bại chỉ là tình trạng nhất thời, bỏ cuộc mới là thất bại vĩnh viễn' của Marilin Vos Savant. Cấm chép mạng!

Đề : Thả một vật rơi từ độ cao 45m so với mặt đất , g=10m/s^2 . Bỏ qua sức cản của KK . a). Tính vận tốc của vật khi vật chạm đất . b). Tính độ cao của vật khi Wđ= 2Wt c). Khi chạm đất , do đất mềm nên vật bị lún sâu 10cm . Tính lực cản trung binh tác dụng lên vật , cho m=100g. Giải hộ e !

Làm giúp mk câu e,h,j,l nha mn Đây là bt những hằng đẳng thức nha

21. She _____ for lost time by studying at weekends. A. got up B. set about C. made up D. put in 22. What is your opinion about Bob’s condition? - I recommend ___________ as much as possible. A. him rest B. that he rests C. that he rest D. him to rest 23. Alan and Sue ___________ an argument. They are not speaking to each other. A. must have B. must have had C. might have D. might had 24. ______________________, we tried our best to complete it. A. As though the homework was difficult B. Thanks to the difficult homework C. Difficult as the homework was D. Despite the homework was difficult 25. Only when the ground is kept moist, _________________ germinate. A. will grass seeds B. grass seeds will C. does grass seeds D. grass seeds does 26. She would rather I ________ harder now. A. study B. studying C. am studying D. studied 27. The concert didn’t come ______ our expectations. A. up to B. up against C. round D. up with 28. Excuse me, is anybody sitting here? - “_________________________”. A. No, thanks. B. Yes, I am so glad C. Sorry, the seat is taken D. You are welcome. 29. My uncle _______ golf when he retired from work. A. took on B. took up C. took over D. took after 30. By the end of next month, we _______ our English course. A. have completed B. will be completed C. will have completed D. completed

giúp với. đang cần gấp lắm cảm ơn trước nha

Lớp đất là gì? Lớp đất có mấy thành phần chính? Đó là thành phần nào , nêu đặc điểm

Vote 5* 20đ nha 😁🌈🙆‍♂️🙆‍♀️🤞👉

21. She _____ for lost time by studying at weekends. A. got up B. set about C. made up D. put in 22. What is your opinion about Bob’s condition? - I recommend ___________ as much as possible. A. him rest B. that he rests C. that he rest D. him to rest 23. Alan and Sue ___________ an argument. They are not speaking to each other. A. must have B. must have had C. might have D. might had 24. ______________________, we tried our best to complete it. A. As though the homework was difficult B. Thanks to the difficult homework C. Difficult as the homework was D. Despite the homework was difficult 25. Only when the ground is kept moist, _________________ germinate. A. will grass seeds B. grass seeds will C. does grass seeds D. grass seeds does 26. She would rather I ________ harder now. A. study B. studying C. am studying D. studied 27. The concert didn’t come ______ our expectations. A. up to B. up against C. round D. up with 28. Excuse me, is anybody sitting here? - “_________________________”. A. No, thanks. B. Yes, I am so glad C. Sorry, the seat is taken D. You are welcome. 29. My uncle _______ golf when he retired from work. A. took on B. took up C. took over D. took after 30. By the end of next month, we _______ our English course. A. have completed B. will be completed C. will have completed D. completed

Đề : Một thanh ray dài 10m được lắp đặt trên đường sắt ở 20°C . Phải để hở 2 đầu 1 bề rộng bao nhiêu để nhiệt độ nóng lên đến 60°C thì vẫn đủ chỗ cho thanh ray dãn ra ? @= 12.10^-6K^-1 Giúp em với ạ ngày mai e thi rồi ạ !

nếu x,y,z là số nguyên tố mà 2x^ y + y^ x= 2z. Tìm giá trị tối thiểu của z