Đáp án:
Bài 6: 4m
Giải thích các bước giải:
Bài 6: P=10m= 10.120 = 1200 (N)
Độ dài của mặt phẳng nghiêng đó là: P.h=F:l => l= (P.h)/F = (1200.1.2)/360= 4(m)
I. Fill in the blank with a word/ phrase in the box. II. Read the following passage and answer the questions. 1. What is a popular game? 2. How long does the football match last? 3. Does a team have 12 players? 4. Who is allowed to touch the ball with hand? 5. Who conductes the game? PART 4. WRITING I. Make sentences using the words and phrases given. 1. Which/ sports/ you/ do /school? 2. Students/ my school/ take part in/ a lot/ outdoor games. 3. I/ not/ go / water / because/ I /can't/ swim. 4. Do/ she /do /aerobics/ everyday? 5. Yesterday/ he/ go/ gym /with /me. 6. Last Sunday/ I /have/ nice holiday/ some friends/ beach. 7. Who/ favourite/ sports stars? 8. How often/ your brother/ go /run? 9. Sports/ games/ play/ important/ role/ our lives. 10. Mountain/climbing/ consider/ dangerous /sport. II. Complete the second sentence so that it means the same as the sentence before it. 1. My sister swims very well. 2. I like table tennis most. 3. Sports and games play an important role in our lives. 4. We do a lot of indoor activities in summer. 5. Mai is good at basketball. III. Mistake in each sentence, try to find the mistake and correct it. 1. Our team wins in the football match last Friday. 2. How often do you practice play volleyball? 3. His team lost game because his team practiced a lot. 4. In my free time, I play running around the lake. 5. The next world cups will take place in Russia in 2018.
Giúp em với ạ Bài tập tình huống
V.give the correct form of the words in brackets 26. he drives so ...... that he often has accidents. (care) 27.i think these thin clothes are .... for cold weather. (suit) 28. the computer is one of the most marvelous ....in our modern age. (invrnt) 29.she is always worried about her children's .... (safe) 30 . we must make a .... about where to go . (decide)
hộ mình câu này với so sánh chiều cao tháp ép-phen vào ngày 1/1/1890 và ngày 1/7/1890
Use there words and write completed sentences 1.There/big yard/house 2. Bed/between/desk/wardrobe 3. The cat/in/front/computer 4.My sister/have/round face / and/long/black hair 5. Sapa/cold/ HA Long 6.life in the city/exciting/life in the country 7 she/intelligent/her sister 8.Peter’# exam results/good/Nick’s exam results Mn giúp mik mới ak . Mik cần gấp
Giúp mình bài 1 với ạ gấp lắm roui moi ngui ơi
Những sự kiện chính năm 939,965-967,968,968-980,981,980-1009,1010,1042,1054,1070,1075,1076,1077,1226,1230,1253,1258,1285,1288,1400,1400-1407,1041 Ai giúp mik,mik sẽ vote 5*
Mọi người giúp em với . Em cần lắm ạ!! Viết các phương trình phản ứng xảy ra cho các sơ đồ sau: a, HCL -> CL2 -> FeCL3 ->NaCL -> HCL ->CuCL2->AgCL b, KMnO4 -> CL2 -> HCL -> FeCL3 -> AgCL -> Cl2 -> Br2 -> I2 -> ZnI2 c, MnO2 -> CL2 -> KCLO3 -> KCL -> CL2 -> Clorua vơi
giúp mình bài này ạ!!!!! Cảm ơn
Chỉ em câu 5,6,7 với ạ , ảnh hơi mờ nên thông cảm ạ 🙆❤
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến