2022英语周报七年级新目标（AHW）答案

第一节One possible versionDear Fairy,Im pleased to hear that you want to learn something about Calligraphy Club in our school.The Calligraphy Club is divided into primary class and advanced class. Primary class is suitable for peopldewithout foundation while the teaching of advanced class is more specialized. There are two lessons a week foreach level. The classroom is on the third floor of Student Activity Center. The general requirements ofcalligraphy are very simple. In addition to mastering some basic skills, the most important thing is persistence.Each day the learners have to spare their free time to stick to practice.Finally, I suggest you can come to class to experience if you like. Then decide whether to join the club.ours truly,Li Hua

6.c《解析】题图所示是“等时圆”模型,即两滑块同时到达圆环上。合力F= mosin(0为滑轨与水平方向的倾角),由题图可得F>F,因此合力对小滑块a的冲量较大,小滑块a的动量变化也大;重力对两滑块的冲量大小、方向都相同;弹力FN= mgcos0,FN

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