2023英语周报八年级课堂在线32答案

2023英语周报八年级课堂在线32答案已经整理完毕，供同学们学习参考，更多英语周报答案，请关注本网站。

书面表达:命题立意:本题要求学生给交换生Ly写一封邮件,答应和她一起去图书馆看移》情境基于学生实际生活,并融入了英语元素。该题很好地体现了英语的交际性,有利于考查学生的莫语实际应用能力。参考范文:Dear Lily,I'm glad to know you would like to invite mete the City Library to read books. It's my pleasure to spendsome good time together with you, so I will join you.If it's convenient for you to go to thelibrary/on this Sunday morning, let me know it. Because I have lots ofhomework to do, I have to return home before 4 pm. The library is not far away from our school, so why notride a bike to get there?-To have a wonderful reading experience, I want to know what kind of books you like most and which writeris your favorite. Please tell me the details. I'm looking forward to your reply.Yours.ua

答案】0)2(3)摆线得长度测量由误差【解析】()小球的直径a,遮光时间为t,所以通过光电门的速度ν=2,根据题周运动的半径R0,小球质量m=,向心力表达式F向=mg2(L+d/2)(2)钢球经过光电门时只受重力和绳的拉力,所受合力F合(3)根据向心力表达式知,可能在测量摆线长度时存在误差

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