青桐鸣 2023-2024学年下学期高一年级期末考试物理试卷答案试卷答案,炎德英才答案网站目前收集并整理关于青桐鸣 2023-2024学年下学期高一年级期末考试物理试卷答案试卷答案得系列试题及其答案，更多试题答案请关注我们
青桐鸣 2023-2024学年下学期高一年级期末考试物理试卷答案试卷答案
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Lastyear,theFeedingAmericanetworkandourpartnersrescued4.7billionpoundsofgroceries.Thatfoodwentdirectlytomealsforpeoplefacinghunger.ThismakesFeedingAmericathelargestfoodrescueorganizationinthecountry.Foodrescue,orfoodrecovery,isthepracticeofcollectinghigh-qualityfoodthatwouldotherwisegotowasteanddistributingittopeoplefacinghunger.Weworkwithmanufactur-ers,retailers,andfarmerstoreducefoodwasteandgetrescuedfoodtopeopleinneed.Weidentifyfoodatriskofgoingtowaste,offerrescuedfoodtofoodbanks,safelyshipfoodoverlongdistancesandkeepfoodfreshlongeronceitreachesafoodbank.28.WhatdoweknowaboutthefoodinAmerica?A.Itisbarelyenough.B.Itisquiteabundant.C.Itiseasilyavailable.D.Itisincreasinglyinsufficient.29..Whatdoestheunderlinedphrase"equatesto"inparagraph3mean?A.Consumes.B.Multiplies.C.Wastes.D.Equals.30.How'doestheauthorrevealthefoodwasteinAmerica?A.Bymakingcomparisons.B.Bypresentingdata.y4.C.By.listingreasons.D.Byofferingexamples.31.WhatdoesFeedingAmericaactuallydo?A.Itteachespeoplehowtogrowfood.B.Iturgesgovernmenttotakeaction.C.Itsavesfoodfrombeingwasted.D.Itaimstorelieveworldhunger.DOneofthemostcommonbeliefsamongresearchersisthathumansfirstarrivedinNorthAmerica16,000yearsago.Accordingtoarecentfossildiscovery,thatmightnotbetrue.ThenewfindingsuggeststhathumansmighthavearrivedinNorthAmericafarearlier.ln20l3,adamagedmammoth(猛犸象)skullandotherbonesthatlooked“deliberatelybroken"werefound.Thedamagetothebonessuggestedthathumansweretheoneswhocausedittomaketools.Carbon-datinganalysissuggestedthepiecesareroughly37,000yearsold.Thisdiscoverycouldshift.ourunderstandingofhumans'earliestexistenceinNorthAmerica.Thesefossilssuggesthumanskilledanimalsintheareamuchearlierthan16,000yearsago.PreviousresearchledscientiststobelievethefirsthumansthatsettledinNorthAmericabelongedtotheClovisculture.Thiswasagroupofpeoplewholeftbehindcarefullymadetools16,000yearsago.However,carbon-datinganalysisofthemammothbonesindicatesthatthesiteisaround36,250to38,900yearsold.Thatmeansit'stheoldestknownsiteleftbe-hindbyancienthumansinNorthAmerica.12"That'snottheonlyinterestingthingaboutthediscovery,"saidTimothyRowe,apro-fessorattheUniversityofTexas."Thesimilarfindingssupportinganearlierdateforhumanarrivalhavebeenmostlyignored.Thisisbecausetheyhavecontradictedpreviousresearch."Now,however,hethinksthere'sagoodchancethatresearcherswillfindevidenceofhumans【高三英语，第6页（共10页）】2005C·QG·
青桐鸣 2023-2024学年下学期高一年级期末考试物理试卷答案第一部分
23.(9分)如图甲所示为一款具有加热和保温功能的榨汁机,解决了冬季打出的果汁太凉不宜直接饮用的难题,其内部电路简化示意图如图乙所示,R和R为加热电阻,该R1R2榨汁机的部分参数如表所示。求:榨汁开关S1M杯身SnR1R.保温开关加热开关220Vo甲(1)当开关S2S3断开选填“闭合”或“断开”)时,榨汁机处于保温状态,仅榨汁时的正常工作电流为0.5.(2)加热电阻R2的阻值;(3)已知该榨汁机正常工作时的加热效率为90%,杯子中盛有果汁330。果汁330g,使其温度升高30^C,,需要加热多长时间。[c水=410^3J/(kg^C)
青桐鸣 2023-2024学年下学期高一年级期末考试物理试卷答案第二部分（待更新）
4.(14分)如图所示,A、C两个物块用绕过光滑定滑轮的足够长细线连接,B、C用较短的细线连接,A、B144.(1短的细线连接,A、Bm的质量均为m,用外力使物块A处于静止,此时A、B离地面的高度相等,若撤去作用在A上的外力,使连接体由静止开始运动,B下落t时间刚好落地;若先剪断B、C间的细线再撤去外力,使连接体由静止开始运动,则A下落155t的时间刚好落地,重力加速度为g,求:(1)物块C的质量;(2)若在B下落到初始离地高度的一半时剪断B、C间的细线,求A上升的最高点离地面的高度.
