[今日更新]江西省2023-2024学年高一第一学期期末考试(4287A).物理试卷答案

[今日更新]江西省2023-2024学年高一第一学期期末考试(4287A).物理试卷答案试卷答案,我们目前收集并整理关于[今日更新]江西省2023-2024学年高一第一学期期末考试(4287A).物理试卷答案得系列试题及其答案，更多试题答案请关注微信公众号：考不凡/直接访问www.kaobufan.com(考不凡)

[今日更新]江西省2023-2024学年高一第一学期期末考试(4287A).物理试卷答案试卷答案

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FromavirtualvisittoChineseancientarchitecture56onlinemuseums,moreandmoreantiquesandculturalrelicshavebeenmovedonlinewithhightechnology57(solution)suchasvirtualreality,anddigitalizationisplaying58moreimportantroleinfutureprotectionofrelics.TheGreatWallvirtualtravelapplication"YunyouGreatWall"was59(official)launchedonSaturdayonajonpresscofrenceTheappisanotherexampleoftheleadingtechnologybeingusedintheprotectionofChina'sculturalrelics.60(develop)byresearchersfortheproectionoftheGreatWall,theappcontainscloudmingtchnoloyremviciiyotochveandintertivedigitalreref(gcertChnTheGreatWallisassymolofChina'scivilization.Yetfterthousndsofyearsofuralrsmetionhavebeenevereydamaged.omrtsoftheGreatWallreonthevergeof6(disapear)uuci,DeputyDirectorGrNationalCulturalHeritageAdministrationnotedonthepressconference.“Thegovernment64(attach)greatimportancetotheprotectionoftheGreatWallbyterevaneghemoeope65rnddsdingheoftheGaWall.G

15.(10分)物流公司通过滑轨把货物(视为质点)直接装运到卡车中,如图所示,长度l1=4m的倾斜滑轨与水平面成37^角,滑轨与车厢平滑连接。货物从倾斜滑轨顶端由静止开始下滑,货物在倾斜滑轨上滑行时的加速度大小a1=2m/s^,,取重力加速度大小g=10m/s^,37^=0.6,37^=0.8。(1)求货物与滑轨间的动摩擦因数p1;(2)求货物在倾斜滑轨末端时速度的大小v;(3)若货物与车厢底板间的动摩擦因数2=0.1,不考虑货物从滑轨滑到车厢底板过程中的机械能损失,不计车厢的高度,货物不能与车厢右侧厢壁相撞,求车厢的最短长度

10.如图-1所示,电源电压保持不变,闭合开关S时,滑动变阻器的滑片P从b端滑到a端,电压表示数U与电流表示数1的变化关系如图-2所示,下列说法正确的是A.电源电压是12VB.若滑动变阻器的滑片由a向b移动时,电压表示数变大C.滑动变阻器的阻值范围是018ΩD.定值电阻R的阻值是6Ω

12.如图所示,a、b、c、d为匀强电场中的四个水平等势面,一个质量为m、电荷量为+q的粒子在该电场中运动,A、B为其运动轨迹上的两个点。已知该粒子在A点的速度大小为v1,,且方向与等势面平行,在B点的速度大小为v2,A、B连线长为L,连线与等势面间的夹角为θ,不计粒子受到的重力,则A.粒子运动过程中的速度变化率不变B.等势面b的电势比等势面c的电势低C.粒子从A点运动到B点所用的时间为Lv1D.A、B两点间的电势差UUAB=m(v2^2-v1^2)2q