[今日更新]云南省2024年大理州九年级质量监测.物理试卷答案

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hisemployee(whoshouldtakeovertheshopfortheafternoonhadjustcalledinsick(请假).Salwasanartistinmakingcakes.Noonecouldmakecakeslikehim,buthewasn'tapersonwhoisgoodattalkingtoothers.Hedealtwithseveralhateful(令人i讨厌的)custom-ersthatmorning,sowhenJanie,anine-year-oldgirl,walkedin,hewasalreadyveryangry.Janieplacedherlittlehandsagainsttheglassasshelookedatthedeliciouscakes."Hey,kid!"Salshouted."Don'tputyourhandsontheglass!Ijustcleanedit!"Janiejumpedbackandsaidsorry."Everythinglookssodelicious!Mymomsaysyoumakethebestredvelvet(丝绒)cakeintheworld,”Janiesmiled..Salfelthappyaboutthepraise."Iwanttobuyabirthdaycake,"Janiesaidandreachedoutherhand.Thereweremanycoinsthatdidn'tcometomorethanafewdollars.Shesaidshewantedtobuyaredvelvetcake.ButSalreplied,"Ihopeyouhavemorethanthosethreeorfourdollars,kid!Thatcake懿costs$70!"Janiewasshocked,andhopedshecouldbuyjustaslice(sinceshedidn'thaveanymoremoney.学"Kid,"Salanswered,"youcan'tevenaffordaslice!"Janiealmostcried.Shepointedatothercakes,askingwhethershecouldbuyoneofthecheapest.Salshookhishead.Janiewassosad.Shewantedtobuyabirthdaycakeforhermom,whohadgotseriouslyill.Sal'sredvelvetcakewashermom'sfavorite.Janiewantedtobuyonetosurpriseandcheerhermomup.Knowingshecouldn'tevenaffordoneofanyotherbirthdaycakes,Janiestartedcrying,"Please,sir.Youdon'tunderstand..."Sallosthispatience,shouting,"Getout!Trysomewhereelse!"Janieranoutandsatonachairoutsideofthedoor,cryingsadly.Justthen,anoldladywalkedpast.相注意：同w.、1.续写词数应为150左右；48'5喀2.请按如下格式在答题卡的相应位置作答

TheoldladystoppedtoaskJanie,"Sweetie,areyouOK?"营消林Overhearingtheirconversation,Salfeltregretfulforhisbehaviorjustnow.【高一英语第10页（共10页）】

2.2023∼2024雪季,“首届法国阿尔卑斯滑雪嘉年华”推介会从北京出发,经过广州等中国各大名城,了解各个地区游客对滑雪度假的需求.如图所示,滑雪者与装备的总质量为75kg,沿着倾角=30^的平直山坡直线滑下,当速度达到2m/s时他收起雪杖自由下滑,在此后5s的时间内滑下的路程为60m.将这5s内滑雪者的运动看作匀加速直线运动,g取10m/s^2.则这5s内滑雪者损失的机械能为A.3800JB.4200JC.4500JD.5400J

6.(9分)如图所示,在Oxyz坐标系所在的空间中,在x轴0~d范围内存在沿y轴正方向的电场E1,dd范围内存在沿x轴正方向的电场E2,,将一质量为、电荷量为+q的电荷从静止开始经电势差为U0,的电场加速之后,从原点O沿x轴正方向飞入电场,求:(1)被加速电压加速后电荷的速度v0。(2)电荷离开电场E2时的坐标。

(5)如果开始两弹簧测力计的夹角小于90^,保持弹簧测力计B的方向以及结点O的位置不变,将弹簧测力计A沿逆时针方向缓慢转动,则弹簧测力计A、B读数的变化情况是(请填写选项前对应的字母).A.弹簧测力计A的读数先增大后减小,弹簧测力计B的读数减小B.弹簧测力计A的读数先减小后增大,弹簧测力计B的读数增大C.弹簧测力计A的读数减小,弹簧测力计B的读数先增大后减小D.弹簧测力计A的读数减小,弹簧测力计B的读数先减小后增大