Một người công nhân trung bình 50s kéo được viên gạch lên cao 5m mỗi viên gạch có trọng lượng 20N. Công suất trung bình của người công nhân này là?

giúp với!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

9. Vietnam won 3 gold ________ in the 15th Asian Games. * A. degrees B. medals C. awards D. boards 22. He won three gold________ in the Games. * A. qualifications B. degrees C. medals D. positions 12. The company has laid off 150 workers in an ________to save money. * A. effort B. efforts C. affect D. affection 8. On some special occasions, people often march and demonstrate to show their ________. * A. nation B. event C. culture D. solidarity 6. Swimming is one of the ________ sports. * A. mountainous B. aquatic C. racing D. running 1. The Vietnamese participants took ________ in the 14th Asian Games with great enthusiasm. * A. notice B. notes C. part D. role 2. ________ from several countries competed in many Asian Games. * A. Spectators B. Athletes C. Audience D. Viewers 23. Congratulations, I hear you’ve been ________ to divisional manager. * A. downgrade B. put C. upgraded D. get 18. Soccer is played on a________. * A. course B. track C. field D. pool 4. The quiet country roads are ideal for cycling. The word “cycling” is closest in meaning to “________”. * A. driving a car B. riding a bicycle C. kicking a ball D. playing football 10. Nearly 500 ________ from 11 nations took part in the first Asian Games in New Delhi, Indian. * A. viewers B. spectators C. passers-by D. athletes 20. You can’t expect to win in any sport if you don’t make any________. * A. effort B. try C. competition D. good 5. The Olympic Games is one of the biggest sporting ________ all over the world. * A. problems B. athletes C. cultures D. events 16. The Olympics are ________every four years. * A. held B. made C. taken D. gone 15. He played golf at the golf________. * A. track B. court C. course D. pitch 21. What an amazing fight! Lewis has won with a knock – out in the tenth________. * A. round B. part C. circle D. race 14. Workers give money to charity to show their ________ with the strikers. * A. share B. combination C. strength D. solidarity 24. He’s trying to ________his own knowledge. * A. advanced B. advances C. advancing D. advance 19. The soccer player kicked the ball into the________. * A. wicket B. basket C. net D. hole 17. After the accident he lost his________ for the sport. * A. enthusiastic B. enthusiast C. enthusiastically D. enthusiasm 11. Vietnam ________ 3 gold medals in the 15th Asian Games. * A. won B. beat C. win D. beated 13. I didn’t really feel like going out, but I am glad I ________ the effort. * A. did B. made C. tried D. acted 7. ________ can help an athlete to improve the strength of muscles and the appearance of the body. * A. Shooting B. Table tennis C. Weightlifting D. Playing chess 3. How many sports are there ________ the 14th Asian Games? * A. in B. on C. at D. to 25. ________ countries took part in the 18th Asian Games? * A. What B. Which C. How much D. How many

qua bài học ' Những người con trong gia đình ' hãy viết 1 đoạn văn 200 chữ nói về suy nghĩ của em về trách nhiệm của tuổi trẻ hôm nay với gia đình tổ quốc như thế nào? (giải nhanh giúp mình với ạ )

Tìm 5 ví dụ cho mỗi loại : trồng rừng sản xuất , trồng rừng phòng hộ , trồng rừng đặc dụng

Giật hộ e. Bài 2 ạ nsbwhejdndbrn

 EXERCISE 1: Make questions and answer. Ex: Nam / play table tennis What is Nam doing? – He is playing table tennis. a. They / swim ............................................................................................................ b. Hoa / play tennis ............................................................................................................. c. Your brother / listen to the radio ................................................................................................................ d. You / watch television ................................................................................................................. e. The children / play soccer .................................................................................................................  EXERCISE 2: Fill in the blanks with the words in the box doing playing swimming does play skipping jogs Ex: Mai is doing her homework. a. Do they ............ volleyball? b. Mai ............. aerobics every morning. c. My brothers are ................. tennis at the moment. d. Nam is ................ in the swimming pool. e. Her father ............... every morning. f. Lan is ............... now.

hãy nêu nghệ thuật quân sự của nước ta khi 3 lần chiến thắng quân Mông-Nguyên

Chứng minh rằng pt sau luôn có nghiệm với mọi m: ( $m^{2}$ +m+3)(x-2)+4=0

nhưng pic tui zẽ chắc là trace nhỉ nếu mn đã nói z thì thôi chắc là trace đó haizz bỏ hoi đap anime bùn full màu market lưu ý là phải có pằng chứng nha