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乘客在公交车上发现车厢顶部A处有一小水滴落下,并落在地板偏前方的B点处,对水滴的运动状态进行分析其实是这样的,答案我已经知道了,现在就是对水滴从a点落下时,离开的那一刻,初速度的 乘客在公交车上发现车箱顶部有一水滴落下,并落在地板偏前处,由此判断公交车的运动情况是A向前加速运 车厢内一小水滴滴下来,落在了正下方的前面,此车当时的运动情况是质量为2.7g的乒乓球浮在水面上静止，所受重力是 N，由 知识可知，这时水对球的托力是 N 一个人在匀速行驶的列车车厢内向上跳起,当他落回车厢的地板上时,为什么回落回原来的位置?xiexie why is the life boring to death?there is no change,air,food,workand styles of life have no changebecause everything is fixed.therich is always rich,the poor ispoor.if you want to land a goodjob,you have to have some relationshipwith some authorities. I learned how to accept life as it is from my father. mr green.he's form canada.什么一次? 洛神赋原文 求原文,急须 我要的原文. sad的比较级和最高级是什么? 谁有的原文?我看到电视上曹植写的那篇洛神赋不是很长的.不是这个...我看到开头第一句是"翩若惊鸿婉若游龙" sad的比较级和最高级急 电压表指针如何校准就是电压表在15V是准的,但5V就不准了. 怎样校准自制的电压表? 怎样校对电压表和电流表?用什么电路? 洛神赋原文 friend啥意思 Rule The World 歌词 you will rule the world罗马音 英语翻译- 斜坡匀速行驶- 高速环形试验路面- 横向越过壕沟- 防倾翻（动态） 英语翻译Two concepts are possible.Either a number of profilescan be stored in the non-volatile memory of thetransmission control unit and the current driver isidentified by its driver ID from a SmardKey.Or the profileis stored on a SmartCard that What does this sentence mean?是关于薪水的句子：He was a scale one,so that's four hundred and fifty-seven pounds sixty a month. 求Take That的Beautiful歌词 不是beautiful world 这句英文什么意思But is there a connection beyond the fact .But is there a connection beyond the fact that both sit on the geologically active Ring of Fire that encircles the Pacific Ocean? Where there is life,there is hope. There is a distance,can not go beyond; there is a miss,can not There is life even after a broken heart帮忙翻译下 He often tells younger students to be careful when they…… 对画线部分提问He often tells younger students to be careful when they play water sports.画线部分为"to be careful" My mother often tells me to be careful with fireMy mother often_____ ____ _____ _____ ______careful with fire(改同义句） 半夜广播未关,听到一首很温柔的女声,只记得几句歌词.我的心是一片蓝色的海洋!…………可以温柔却有力量!……在这无常人生路上……我会对你不离不弃 海洋是蓝色的因为天空的颜色反映在海洋?如果是阴天..那是什么色~ 把句子变为被动语态：Mother often tells her children a story at bed time.