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江西省上饶市2023-2024学年度七年级下学期期末考试(物理)试卷答案试卷答案
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BeijingPlayhouse,Beijing'sonlyEnglish-langungetheater,isrunningfourdramacampsthissummer:Pinocchio,OnceUponaTime,BeautyandtheBeast,andRomeoandJuliet.BeijingPlayhouseAllcampslasttwotothreeweeks,arelimitedto30kids,andendwithaperformance.Dates:June29~July11(Pinocchio),July13~25(OnceUponaTime),July27-August8Ages:6~14Prices:RMB8,000forPinocchio,OnceUponaTime,andBeautyandtheBeast:RMB12,000(BeautyandtheBeast),August10-29(RomeoandJuliet)forRomeoandJulietThat'sMandarinisrunningfourcampsforChineselanguageandculture:morningcamp,That'sMandarindaycamp,fullcampandhomestaycamp.Dates:FromJunetoAugust.StartdatesareJune15,June29,July13,July27,andAugust10Ages:7~17Morningcamp:RMB5,000(twoweeks),RMB9,200(fourweeks)Prices:Daycamp:RMB9,000(twoweeks),RMB17.200(fourweeks)Fullcamp:RMB20,000(twoweeks),RMB38,000(fourweeks)Homestaycamp:RMB24,000(twoweeks),RMB46,000(fourweeks)21.Whichcampissuitableforthe5-year-olds?A.IvyAcademy.B.BeijingPlayhouse.C.That'sMandarin.D.PrestigeEducationCentre.22.WhatdoesBeijingPlayhousefocuson?A.Englishdrama.B.Literatureandscience.C.Musicandart.D.Chineselanguageandculture.23.HowmuchshouldastudentpayforThat'sMandarin'sfour-weekdaycamp?B.RMB9,200.C.RMB17,200.D.RMB46,000.A.RMB9,000.BBillRussell,oneofbasketball'slegendaryplayers,hasdiedatage88.TheannouncementwaspostedonhisTwitteraccountonAugust1,2022.Russellmademanyhistoriesinthegame.HebecamethefirstBlackheadcoachintheNBAandhetookanactivepartinthecivilrightsmovementofthe1960s.HesatinthefrontrowatMartinLutherKingJr.'shistoric"IHaveaDream"speechinWashington,DC.He-alongwithBlackteammates-boycottedagameinKentuckywhenarestaurantdeniedthemservice.Hejoinedotherwell-knownBlackathletesinsupportingboxerMuhammadAli,whorefusedtogototheVietnamWar.Buthegotareputationforbeingsurlytohisfans.Herefusedtosignautographs()."Hehaddoubtsaboutpeople'sintentions,"StephenBeslicwroteinhisbookBasketballNetworkin2020,"andhedidn'twantsomeoneusinghimforhispopularity.That'swhyheofferedasimplesolution:Hewon'tsignanything."Tounderstandthismanandsuperathlete,ithelpstorememberoneofhismother'slessons.Onedaywhenthe9-year-oldBillRussellwasoutsidehisapartment,fivewhiteboysranbyandonehithimintheface.Heandhismotherwentlookingforthegroup.Whentheyfoundthem,heexpectedhismothertobeatthem.Instead,hismothersaid,"Fightthem,oneatatime."Hewontwo,lostthree.Ina2013interview,Russellsaidhismother'smessagechangedhislife.【2023年仿真模拟卷（六）·英语第3页（共8页）】新高考批准文号：皖费核(2021年秋季)第0602号举报电话：12315最色即明产品
(1)若在c、d端接一个电容器,待电路稳定将S断开,S断开后通过R2的电量为7.510^-4C,则电容器的电容多大;(2)R1、R3的阻值分别为多少.
14.(12分)如图所示,小球A置于水平面上的半圆柱体上静止,半圆柱体底面粗糙,其余面光滑。小球B用系于竖直板上的水平轻弹簧拉着,两小球A、B通过光滑滑轮O用轻质细线相连,两球均处于静止状态。已知A球质量为m,点在半圆柱体圆心O1的正上方,OA与竖直方向成30^角,0A长度与半圆柱体半径相等,OB与竖直方向成45^角,重力加速度为g,求:(1)小球A受到细线的拉力大小;(2)若半圆柱体质量也为mH恰好不滑动,设最大静摩擦力等于滑动摩擦力,半圆柱体底面与地面间的动摩擦因数(3)若将OB绳剪断,则在剪断瞬间,小球B的加速度的大小和方向。
1.下列说法正确的是A.做匀速直线运动的物体机械能一定守恒B.做平抛运动与斜抛运动的物体单位时间速度的变化量不同C.一对互为相互作用力的静摩擦力做功之和一定等于零D.做曲线运动的物体所受合外力一定为变力
