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河北省2023-2024学年高二下学期开学检测考试-物理试卷答案试卷答案

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ProgramataGlanceDatesPrice:August5~9;$750eachpersonAges:14~18GroupSize:4~10participantsLevelofSpanish:AbasiclevelisrecommendedingtouofandvisittpefrtheNationlTheDetailsStayithhmetaymilyinHeredorexprttheCostaRicanlifestyle.Museum,CentralParkandCentralMarket.boutthballpnteds().theheartofthecou'creParticipateinapaintingworkshop,enjytypicallunchandvisitgardens.ExperienceacoffeetourinthehighlandcommunityofNaranjo.Trvebouthetivepeoplesandtheirtraditionways.VisitAbangaresanditsgoldmines.EndinHerediawithafarewelldinnerandacookingclass.21.Whoisthemostsuitabletotakepartintheprogram?A.12-year-oldJackwhospeaksSpanishwell.B.15-year-oldJoanwhoonlyknowsEnglish.C.17-year-oldJanewhospeaksalittleSpanish.D.19-year-oldMikewhowasborninSpain.22.Wherewilltravelersstaywithlocalfamilies?A.InHeredia.B.InSarchi.C.InNaranjo.D.InAbangares.23.Whatcantravelersdoduringtheprogram?A.Buyoxcarts.B.Visitgoldmines.C.EnjoyacoffeetourinGuatuso.D.SpendnightsinSanJose.BMost5-year-oldsarejustlearningtoreadandwritebutonelittlegirlfromtheUKhasactuallywrittenabookthatwaspublishedinJanuary,2022.Bella-JayDarkfromWeymouthistheworld'syoungestfemaletobepublishedandwasawardedthetitlebyGuinnessWorldRecords.Herbook,TheLostCattellsthestoryofSnowy,acatwhogotlostaftergoingoutsidealoneatnight.Bellahopesthebookwillteachchildrennottogooutsideatnightalone.Whilemanyadultwritersfindinspirationfortheirbooksfromlifeexperiences,Bella'screativevisionactuallycamefromoneofherdrawings."Itstartedoffasapicture.MydadalsoagreedIcouldmakeabookandastorycomingfromthepicture,"BellatoldGuinnessWorldRecords.Bella'sdecidingtowriteabookwasn'tastoundingtohermom,ChelsieSyme,whosaidthatherdaughterhadbeenwritingshortstoriessinceagethree.Bellaspentaroundfivedayswritingthestoryanddidalloftheillustrations()exceptforonepicturethatheroldersisterLacieMaydrew.Symehadn'texpectedthebookturnedoutaswellasitdid."Ithoughtitwouldjustbesomescribble(),"shesaid."Ididn'tthinkitwasgoingtogothisfar.Iamsoproudandwanttoseehergettheacknowledgementshedeserves.”【高二英语第3页（共8页）】

河北省2023-2024学年高二下学期开学检测考试-物理试卷答案第一部分

河北省2023-2024学年高二下学期开学检测考试-物理试卷答案

(3)根据所设计的电路图,若两电流表R=(用题中物理量的符号表示);A1、A2的示数分别用I1、I2表示,则金属丝的电阻值为

河北省2023-2024学年高二下学期开学检测考试-物理试卷答案第二部分（待更新）

(1)若加速电场的电势差为U,求质子打在照相底片上的位置到M点的最小距离;(2)要使质子和氘核在照相底片上形成的谱线带能够完全分离,求加速电场的电势差应满足的条件;(用m、e、B、L表示)(3)某同学将该装置的狭缝宽度减小到可忽略的程度,将狭缝下方的磁场改为水平向左、电场强度大小为E的匀强电场,并在狭缝MN下方距离为d处水平放置照相底片(如图乙).请推导静止释放的质子,通过两个电场后在照相底片上形成的谱线距狭缝的水平距离x与加速电场的电势差U的关系式,并判断该改装装置能否用于检测和分离同位素.加速电场照相底片