Bi t rằng Mặt Trăng lúc nào cũng quay một nửa mặt về ph a Trái Đất và quay quanh Trái Đất một vòng mất 27,3 ngày với bán kính quỹ đạo trung ình là 384403 km. a) Xác định tốc độ góc T của Mặt Trăng xung quanh trục của nó. b) Xác định tốc độ góc và gia tốc hướng tâm của Mặt Trăng xung quanh tâm Trái Đất.

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Exercise 11: Join the two sentences using the word in brackets. 1. Glenne Close hasn’t won a single Oscar. She has been nominated six times, (although) ____________________________________________________________________________ 2. Brian Stone is a famous singer. He can’t sing folk song. (despite) ____________________________________________________________________________ 3. Some people said the film was terrible. I found it quite gripping. (Though) ____________________________________________________________________________ 4. It was a horror film. It wasn’t frightening at all. (in spite of) ____________________________________________________________________________ 5. The movie was a box-office failure. It had an all-star cast. (even though) ____________________________________________________________________________ 6. The film had good reviews. It was entirely ignored by awards bodies, (despite) ____________________________________________________________________________ 7. People criticized the movie for being too violent. The movie was a commercial success. (in spite of) 8. I liked it a great deal. I will likely never watch it again, (although) ____________________________________________________________________________ 9. The film had largely negative reception. Penn was nominated for Best Actor. (despite) ____________________________________________________________________________ 10. Critic reviews were favorable. The film was pulled early from theaters due to low ticket sales. (although) ____________________________________________________________________________