[今日更新]辽宁省2024高三考前测试A卷.物理试卷答案

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[今日更新]辽宁省2024高三考前测试A卷.物理试卷答案试卷答案

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captain'scup.JustasTerrywalkedoffthestage,Maguireclearedherthroatandannouncedthatthecheerleading"SpiritAward"wouldgotothegirlshowingthemostdedicatedeffort.Hearingmynameannounced,IwasasshockedasTerrywasthedayshewasvotedcaptain.AsIheadedtowardthestage,Terrywascomingdowntheaisletowardme.WehuggedeachothertightlyandTerrywhisperedinatonewithtears,"Nobodydeservesthismorethanyou."听力原文：Text1M:I'mlookingforapresentformymom.Shelovesdrinkingtea,soIwasthinkingofagiftbagwithsomedifferentflavors.W:Oryoucouldgetheradelicateteapot.Myfriendmakesthem.Icangetyouagoodprice.(1)Text2W:I'vebeentryingtocallyou.Didyouloseyourphoneagain?M:Ijustpaidmoremoneyfor5Gdata,butmyphonestillisn'tconnecting.W:It'sjusttooold.Youwon'tbeabletoupdatethesystemanymore.(2)Text3W:Theredbookshelfisfinebutitdoesn'tgowiththeroomM:Well,youknowIlikethisoneherethemost.W:That'sbecauseyou'retootall!MyfavouriteisthisonebecauseIcanactuallyreachthetopofit.(3)Text4M:SorryI'mlate.Everydaymybusisdeadontime,butthedayIhaveanimportantmeetingatworkitdoesn'tturnup.(4)W:It'sOK.Everyone'shavingproblems.Kate'scarbrokedownandLinda'strainhasn'tarrivedyet.Text5M:Thefanonyourcomputerisveryloud.Doesitgethotquicklytoo?W:Yes,itdoesactually.Howdidyouknow?M:Thatusedtohappentomine.Ihadtoopenitandremoveallthedustthatwascollected.(⑤Text6W:Michael,watchout!Thebridgeisbreaking!M:Ah!Jumptotheside.Ican'tmakeit.W:Grabmyhand,andI'llpullyouup.M:I'vegotyou.Pull!W:Thereyougo.Oh,my!Whydidyoudothat?(6)M:Thewaterissocold-I'mfreezing.Iknow,IthoughtthebridgewouldholdmeW:Iwarnedyounottodothat.Nowyou'rewetfromheadtofoot,andwe'remilesfromtheparkinglot.(6)M:Ihaveanextrasetofclothes.Wecanstillgettothetopofthemountain.(7)W:We'renotgoingbackontothetrackuntilyouwarnupproperly.宁波市2022学年第一学期高考与选考模拟考试英语参考答案2

4.透明球对光线有会聚作用。某次探究时,将玻璃半球固定放置于水平面上,其横截面如图所示,半球的圆心为O,,半径为R,,将一束光线平行水平面从P点射入,P点到AB的距离32R光线经过两次折射后射出。已知该玻璃材料的折射率为62,,真空中的光速为C1,下列说法正确的是A.光线射出玻璃球时与水平面的夹角为45^B.光线射出玻璃球时与水平面的夹角为60^C.光线在玻璃球内传播的时间为6RcD.光线在玻璃球内传播的时间3Rc

15.(15分)如图为小姚设计的新型质谱仪原理图,离子源S中飘出的初速为0的离子,经MN间的电场加速后,沿轴线进入图中虚线所示的圆形匀强磁场区域,圆形匀强磁场半径为R,磁场区域的右下部分圆周边界处安装有接收底片PQ,P在O的正下方,Q与O同在轴线上,一个氢离子H^+从离子源进入电场、磁场,最后恰好打在P点,已知元电荷为e,一个氢离子的质量为m0,MN间电压为U0,重力忽略不计(1)求圆形区域中磁感应强度B的大小与方向;(2)在离子源中放入不同的离子,离子打在底片上的位置到O点连线与轴线成θ角,求离子的比荷qm;(3)MN上的电压波动范围为U0U,求质量为km0、(k+1)m。的两种一价离子在底片上的位置不重叠时,UU0应满足的条件;(4)在(1情况下,因放置失误,导致磁场区域整体向下移动,使磁场区域圆心偏离轴线△x,x<R2,求此情况下氢离子打在底片上的位置.(用该位置到圆心连线与水平方向所成的角度θ表示)

2.如图甲所示,用瓦片做屋顶是我国建筑的特色之一.铺设瓦片时,屋顶结构可简化为图乙所示,建筑工人将瓦片轻放在两根相互平行的檩条正中间,若瓦片能静止在檩条上.已知檩条与水平面夹角均为θ,瓦片质量为m,条间距离为d,重力加速度为g,下列说法正确的是A.瓦片共受到4个力的作用B.檩条对瓦片作用力方向垂直檩条向上C.减小檩条的倾斜角度θ时,瓦片与檩条间的摩擦力变大D.增大檩条间的距离d时,两根檩条对瓦片的弹力都增大