[今日更新]陕西省2023~2024学年度八年级第一学期阶段测试(二)2.物理试卷答案

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TheGoldRushCharlieChaplintheLitteTrampeatshisshoeforThanksgivingdirwhiletasorinthisedearingifilmcsWatchthisoneifyou'reinthemoodoleathershoepreparedandeatenasifitwereadeliciousturkey.Itmakesyougratefulforwhyouhave！1.WhatcouldACharlieBrownThanksgivingremindmanyviewersof?A.Thebirthofanimatedfilms.B.Thehistoryoffootballgames.C.Thetasteofjellybeans.D.Thesweetmemoriesofolddays.B22.WhatdoweknowaboutMerylStreep?A.Sheissufferingfromcancer.B.Sheplaysastrongandlovinglady.C.ShehasreceivedanAcademyAward.D.SheisReneeZellweger'smother.B23.Whatdothesefourfilmshaveincommon?A.Theytellinterestingfamilystories.代二B.TheyarerelatedtoThanksgiving.C.Theydescribejoyfulcelebrations.D.Theyarebasedontheauthors'lives.B2aiCyndiDecker,aschoolteacherinFlorida,hadrecentlytakenanartclassandmadeapaintingofahugewhitebirdcalledanegret().HerproudsonpostedaphotographofDeckeronReddit,shylyholdingherpainting.Belowithewrote,"Mymompaintedthisand2saidnoonewouldlikeit.It'shersecondpainting."Thenisofnd,istinSweden,sawthephoto,deeidingtopayrespecttotheteacherbypaintingDeckerholdingherpainting.HeevencapturedtheshyooherfacedphotographedhimselfholdinghispaintingofDeckerholdingherpaintingHepostedtheimageonReddit..Thecaption(说明文字)forhisphotographis“IpaintedsomebodysmomTwodayslater,Amer,anartistinCanada,paintedapietureofZetterstrandholdinghispaintingofDeckerholdingherpainting.Hercaptionread,"paintedthesuguywhopaintedtheotherguysmom"TheartistVinceLawwasthenexttojoinin.Thecap-Yetionforhisphotoofhispaintingis"Ipaintedthewomanwhopaintedtheguywhopaintedtheotherguy'smomwhopaintedanegret."ArtistTravisSimpsoncontinuedthefun.concAndithappenedagainandagainandagain!citieBythistime,morethanonemillionpeoplehadseenthepaintingsandpicturesofpaintingsdeep40《【23新教材老高考·JD·英语】1

(3)实验中(选填“需要”或“不需要”)满足悬挂钩码总质量远小于木块和槽中钩码总质量。C.双量程的电流表,A:量程0.6A,内阻约为1Ω:A1:0.6A,A:量程3A,内阻约为0.1Ω;A2:0.1Ω;

要将一量程为100A的微安表(如图)改装为量程为1mA的电流表,测得微安表内阻为2.需要要并联(填“申联”或“并联阻值R0=50Ω的电阻将微安表改装成大量程的电流表,下列说法正确的是BD(多选);

如图所示,某快递公司使用电动传输机输送快件,电动传输机由倾角=24^4°的体与水平传送带组成,斜面体与传送带在P点平滑连接,传送带OP的长度L=2.1m,L=2.1m,传送带由电动机带动,始终沿顺时针匀速转动。现让质量m==1k的快件(可视为点)以水平速度v0=5m/s从O点滑上传送带,快件运动到P点时的速度vP=6m/s,然后快件滑上斜面体且恰好滑到Q点。已知快件与斜面体和传送带之间的动摩擦因数均为=1645,重力加速度g=10m/s^2,24^=0.4,24^=0.9,求:(1)P、Q两点间的竖直高度H;(2)快件由O点运动到P点所需要的时间。(结果保留两位有效数字)