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江西省高二抚州市2023-2024学年度下学期学生学业质量监测(物理)试卷答案试卷答案
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W:Howdoyouspendyoursparetime,Tom?M:IhaveaninterestinplayingtheviolinandI'llcontinuetopractiseplayingit.W:Doyouoftentakepartintheconcert?M:Yes,Iliketogolisteningtosomemusic.Atpresentmymajorpurposeistolearnfromothers.W:Doyoulikeclassicalmusicorpop?M:Ilikeboth.Howdoyouspendyoursparetimethen,Lily?W:Playingthepianoismyfavoriteactivity.M:Ourhobbiesaresimilar.Ilikeplayingtheviolinbest.Ihopewecanoftenexchangeexperiencetogether.W:SodoI,butI'mweakinthetheoryofmusic.M:Me,too.Wouldyouliketogowithmetomyuncle?He'saprofessorofmusic.W:I'mgladtogowithyou.Iwouldaskhimforhisadvice.Text8W:Hello,Jim.Whereareyougoing?M:Tothecinema.Whataboutcomingwithme?W:No,thanks.I'mgoinghome.Myfriend'sexpectingme.M:Whatapity!Ibelieveit'saverygoodfilm.W:Doyougotothecinemaalot?M:Onceaweek.MostnightsIsitathomeandwatchTV.W:Oh,Isee.Bytheway,whereareyougoingforyourholidaysthisyear?M:Idon'tknowyet.Mywife'sgoingtohermother'sforacoupleofweeks.Shelivesbythesea,youknow.W:Oh,doesshe?That'sconvenient.M:Yes,butIwanttogotothecountry.W:Don'tyoulikethesea?M:Yes,verymuch.ButIneedpeaceandquietwhenI'monholiday.Text9M:So,whatdoyouwanttodotomorrow?W:Whydon'twefirstvisittheartmuseuminthemorning?M:Okay.Ilikethatidea.Andwheredoyouwanttohavelunch?W:HowaboutgoingtoanIndianrestaurant?Theguiderecommendsonedowntownafewblocksfromthemuseum.M:Thatsoundsgreat.Afterthat,whatdoyouthinkaboutvisitingthezoo?Itsaysthattherearesomeuniqueanimalsnotfoundanywhereelse.TIANYICULTUREW:Totellthetruth,I'mnotreallyinterestedingoingthere.Whydon'twegoshoppinginstead?Therearesupposedtobesomereallyniceplacestopickupsomebargainclothes.M:Idon'tthinkthat'sagoodidea.Weonlyhaveafewtraveler'schecksleft,andourmotheronlygivesusfiftydollarsincash.W:Noproblem.Wecanuseyourcreditcardtopay.M:Oh,no.Irememberthelasttimeyouusedmycreditcardforyournewclothes.W:Oh,well.Let'stakethesubwaydowntotheseashoreandwalkalongthebeach.M:Thatsoundslikeawonderfulplan.Text10W:Maryworksatauniversityasastudentcounselor.Studentscancomeandseeheriftheyneedhelporadvice.—2
23.图甲是大型机械厂用来称重的电子吊秤。某物理小组设计了“吊秤”的模拟电路(图乙),电路中电源电压恒为6V,R1为拉力敏感电阻,R0,为定值电阻,拉力敏感电阻R1与所受拉力F的关系如表所示。。(1)当拉力为0时,电流表示数为15mA,求R0,的阻值。(2)当拉力敏感电阻受到250N的拉力时,电流表的示数为多少?(3)若将电流表改装成“吊秤”刻度盘,其刻度线分布是否均匀?请简要说明理由。(AAR1R0甲
B6.如图所示,光滑绝缘水平面上有一菱形ABCD,,其中A=60^,,现将两电荷量均为+Q的点电荷固定在A、C两点,欲使放在B点的负的试探电荷q静止,则应在D点放置的电荷为A.电荷量为3Q的正电荷B.电荷量为3Q的负电荷C.电荷量为Q的正电荷D.电荷量为Q的负电荷
9.(12分)如图所示,水平细杆上套一环,环A与球B间用一不可伸长轻质绝缘绳相连,质量分别为mA=0.30kg和mB=0.60kg,环A不带电,球B带正电,带电量q=1.010^-4C,重力加速度g取10m/s^2,37^=0.6,37^=0.8。若球B处于一水平向右的匀强电场中,使环A与球B一起向右匀速运动。运动过程中,绳始终保持与竖直方向夹角=37^。求:(1)匀强电场的电场强度大小E;(2)环A与水平杆间的动摩擦因数;(3)使环A与球B一起向右匀速运动,所加匀强电场的电场强度最小值Emi和方向。(取5=2.2,结果保留2位有效数字)
