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安徽省2023/2024（上）九年级期末检测试卷-物理试卷答案试卷答案

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lookslikesomethingexplodedinsideit.M:Iputanewshelfinthecornerforallmyfiles.Itmakesabigdifference.(Text3)W:YourpictureIDdoesn'tlooklikeyou.M:That'sbecauseI'velosttenkilossinceitwastaken.W:Oh!Ithoughtitwasyourhaircutthatmadeyoulookdifferent.(Text4)W:ThemuseumcloseslateonFriday.Sowecouldseethenewexhibitionafterwork.M:ButIhavetoworklatethatday.W:Noproblem.Icangotoabaseballgame,though.(Text5)W:Themoviewesawlastnightwasexciting,wasn'tit?M:Oh,no.Ididn'tlikeit.Thestorywasn'tveryinteresting.W:I'msorryyouweredisappointed.(Text6)W:CanyoubringJetintotheotherroom?HewilljustbarktheentiretimewhenIusetheelectricfloorcleaner.Ithinkhe'safraidofthesound.ItcouldalsobehowImovearoundwithit.M:Mydogdoesthesamething,butonlyafterI'mdonecleaning.Itmustbethesmell,becausehesometimesbarksatitevenwhenitisjustsittinginthecloset.W:Myolddogneverusedtobelikethat.Shewasveryrelaxedabouteverything.M:Shediedlastyear.Right?W:Yes.Shewasold,though.IadoptedJetrightafterwards.Hewastwoyearsoldthen.(Text7)M:Howwasyourschool'sCleanupDay,Helen?W:Itwasgreat,Dad.Igotverywetinthemorningthough.M:Ohdear.Diditraininthecountryside?W:Actually,theweatherwassunnyallmorning.Iaccidentallygotwetbecausethewatertapwasbroken.M:That'sterrible.Didyoubringanyextraclothes?W:No,butsincewehadonly300peopletakingpartinCleanupDay,therewerespareT-shirtsforme.M:Good!Howmuchrubbishdidyoucollectbytheendoftheday?W:Weweredividedintothreegroups.Ourgroupcollected7bags.Thesecond,11bags.Thethirdgroupgotthemost.Theycollected27bags!E·87【23·G3DY(新教材老高考)·英语·参考答案一R一必考一Y】

安徽省2023/2024（上）九年级期末检测试卷-物理试卷答案第一部分

安徽省2023/2024（上）九年级期末检测试卷-物理试卷答案

7.如图所示,在竖直平面的固定光滑轨道的最高点有一个光滑的小孔,质量为m的小环套在圆轨道m上,用细线通过小孔系在环上,缓慢拉动细线,使环沿轨道上移,在移动过程中拉力F和轨道对小环的作用力FN的大小变化情况是F、A.F不变,FN增大B.F不变,FN不变C.F增大,FN增大D.F减小,FN不变

安徽省2023/2024（上）九年级期末检测试卷-物理试卷答案第二部分（待更新）

15.(15分分)h在某次“子母球”的表演中,在距地面高度为处由静止释放A球,当A球与地面某发生碰撞反弹后的瞬间从释放A球的位置由静止释放B球,两球恰好在距地面高度为发生高处处第一次发生碰撞。已知两球之间的碰撞为弹性碰撞,A球的质量为2m,B球的质质量为m,重力加速度为g,忽略球的大小、空气阻力和碰撞的时间,求:量(1)A球反弹后瞬间的速度大小;(2)A球与地面碰撞过程中损失的机械能;(3)第一次碰撞后,B球距地面的最大高度。