如图6所示工人用�轮组提升重物已知�轮质量相同若把同一货物匀速提升相同的高度不计绳子与�轮间的�擦 A．使用定�轮比动�轮省力但 Sketch Coloring Page

如图6所示工人用�轮组提升重物已知�轮质量相同若把同一货物匀速提升相同的高度不计绳子与�轮间的�擦 A．使用定�轮比动�轮省力但 Template

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More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

sketch #4704 Slash

anonymous

anonymous
sketch #4704 Slash

sketch #5172 Cheshire Cat by Juan Garcia

anonymous

anonymous
sketch #5172 Cheshire Cat by Juan Garcia

sketch #5208 Alf by David Rossien

anonymous

anonymous
sketch #5208 Alf by David Rossien

sketch #378 Guess what flag?
ɔılqndǝɹ ɥɔǝzϽ

anonymous

anonymous
sketch #378 Guess what flag? ɔılqndǝɹ ɥɔǝzϽ

sketch #3489 Panda by Scott Terry

anonymous

anonymous
sketch #3489 Panda by Scott Terry

sketch #5162 Alien by KiNg Buamir

anonymous

anonymous
sketch #5162 Alien by KiNg Buamir

sketch #5069 Mad Hatter by Ahmed Mostafa

anonymous

anonymous
sketch #5069 Mad Hatter by Ahmed Mostafa

sketch #12 my bear

Tom Kelly
sketch #12 my bear

sketch #3166 Axl Rose by Jessie Lightwood

anonymous

anonymous
sketch #3166 Axl Rose by Jessie Lightwood

sketch #3360

anonymous

anonymous
sketch #3360

sketch #2574

anonymous

anonymous
sketch #2574

sketch #4984 Zombie by London Waterlilly

anonymous

anonymous
sketch #4984 Zombie by London Waterlilly

sketch #5130 Batman by Kamal Ahmed Tantawy

anonymous

anonymous
sketch #5130 Batman by Kamal Ahmed Tantawy

sketch #4384

Laura Agapi Asnicar
sketch #4384

sketch #3107 Hitman by Miguel Edgardo Montes Cuaresma

anonymous

anonymous
sketch #3107 Hitman by Miguel Edgardo Montes Cuaresma

sketch #1695

anonymous

anonymous
sketch #1695

sketch #215 my mickey mouse

Tom Kelly
sketch #215 my mickey mouse

sketch #5140 Jigsaw by Lajla Nygaard Laursen

anonymous

anonymous
sketch #5140 Jigsaw by Lajla Nygaard Laursen

sketch #3375

anonymous

anonymous
sketch #3375

sketch #3280 Adventure Time by Alina Danielle

anonymous

anonymous
sketch #3280 Adventure Time by Alina Danielle

sketch #33 Flutter-bys

Rachel Roe
sketch #33 Flutter-bys

sketch #2446 Joker by sketchmaster

sketchmaster
sketch #2446 Joker by sketchmaster

sketch #523 the man

anonymous

anonymous
sketch #523 the man

sketch #1255 something

anonymous

anonymous
sketch #1255 something

sketch #4852

anonymous

anonymous
sketch #4852

sketch #3447 Hidan (Akatsuki) by ßeyza Karaca

anonymous

anonymous
sketch #3447 Hidan (Akatsuki) by ßeyza Karaca

sketch #5297 Journey by Dmitry Sidorenko

anonymous

anonymous
sketch #5297 Journey by Dmitry Sidorenko

sketch #2598

sketchmaster
sketch #2598

sketch #1703

Laura Agapi Asnicar
sketch #1703

sketch #1430

Laura Agapi Asnicar
sketch #1430

tomski如图6所示工人用�轮组提升重物已知�轮质量相同若把同一货物匀速提升相同的高度不计绳子与�轮间的�擦 a．使用定�轮比动�轮省力但 coloring

如图6所示工人用�轮组提升重物已知�轮质量相同若把同一货物匀速提升相同的高度不计绳子与�轮间的�擦 A．使用定�轮比动�轮省力但 sketch template

工人利用如图所示的�轮组将重900N的物体竖直�上匀速提升 05m工人对绳的拉力为600N则�轮组对重物所做的有用功W有用 sketch template

如图所示建�工人用�轮组提升重为220N的泥桶动�轮重为20N不计�轮与轴之间的�擦及绳重．若工人在5s内将绳子匀速�上拉6m求1 sketch template

初中物理第四讲之�轮知乎 sketch template

如图所示工人用动�轮把重物匀速提升到一定高度重物的重力为G物动�轮的重力为G动此装置的机械效率为η不计绳重和�擦则工人所用的拉力 sketch template

题目搬运工人站在水平高台上用如图所示的�轮组匀速竖直�上提升重物不计�轮组的绳重和�擦工人的重力为640N与地面接触的总面积为提升 sketch template

如图所示是建�工人利用�轮组从竖直深井中提取泥土的情形．某次操作中工人用400N的拉力F在1min内将总重为900N的泥土匀速提升5m．在 sketch template

工人用如图所示的�轮组提升重物在10s内将240N的物体匀速提升2m已知工人的拉力为100N不计绳重与�擦阻力求1工人做功的功率 sketch template

63．工人用如图所示的�轮组提升重物在10s内将240N的物体匀速提升2m已知工人的拉力为100N不计绳重与�擦阻力求 1工人 sketch template

用如图所示甲乙两个�轮组分别提起相同的质量的物体．两个�轮组的动�轮的质量相同不计�擦则A．F甲> F乙η甲>η乙B．F甲 sketch template

如图所示，工人站在水平台面上用�轮组提货物。工人第一次竖直�上用200N的力拉绳子时，货物未离开水平台面；第二次竖直�上拉动绳子，使货物以0 sketch template

如图所示工人用�轮组提升重240N的物体所用的拉力为150N物体在2s内匀速上升1m．求1有用功2�轮组的机械效率3 sketch template

如图所示工人用动�轮把重物匀速提升到一定高度重物的重力为G物动�轮的重力为G动此装置的机械效率为η不计绳重和�擦则工人所用的拉力 sketch template

装卸工人用如图所示的装置将重为1000N的货物提至高处人对绳的拉力为650N货物在1min内匀速上升了5m在此过程中求1请你在图上 sketch template

百度教育 sketch template

如图所示工人师傅用�轮提升重物�轮质量相同若把同一货物匀速提升相同的高度绳重及�轮与轴之间的�擦不计下列说法错误的是 A sketch template

如图1所示 建�工人用�轮组提升重为285N的水泥桶 动�轮重为15N 不计�轮与轴之间的�擦及绳重 工人在将水出卷� sketch template

工人师傅用如图所示的�轮组提升重物在大小为500N的拉力F作用下10s内将 800N的重物匀速提升了2m此过程中 A．有用功是1000J sketch template

工人师傅利用如图所示的�轮组将重为800N的货物匀速提升 08m所用拉力F为320N则工人做的有用功是640640J此�轮组的机械效率 sketch template

如图所示分别用两个�轮组在相同的时间内将重相同的物体G匀速提升相同的高度每个�轮的重均相同．不计绳重及�擦此过程中 A．甲的机械 sketch template

题目工人用如图甲所示的�轮组利用箱子运送建材上楼每次运送量不定�轮组的机械效率随重力不同的建材变化的图像如图乙所示�轮与钢绳间的�擦 sketch template

工人利用如图所示�轮组提升重物不计绳重和�擦．若工人用250N的力恰好能将重物400N的物体竖直�上匀速提起2m根据以上已知信息计算至�5 sketch template

如图质量为40kg的小刚同学设想用�轮组提升重物钢轮O1O2组成定�轮质量分别为15kg5kg动�轮O3及框钩质量共为10kg sketch template

如图所示工人用�轮组将重400N的货物匀速提升2m拉力F为250N则绳子自由端移动的距离是44m此过程有用功为800J800J�轮组 sketch template

用如图甲乙两种方式匀速提升重为100N的物体已知�轮重20N绳重和�擦力不计．其中甲能改变拉力的 手的拉力F甲 F乙机械效率η sketch template

如图所示甲乙两个�轮组通过细绳悬挂在天花板上用�轮组匀速提升重为600N的物体时悬挂甲乙两�轮组的细绳所受的拉力分别为F甲F乙 sketch template

31．如图所示工人用定�轮匀速提升重为180 N的物体所用的拉力为200 N在5s内物体升高的高度为2 M．此过程中求 1有 sketch template

如图所示一工人用�轮组提升重500N的物体所用的拉力F为200N物体以02m/s的速度匀速上升了10s求1物体上升的高度 2 sketch template

30．如图所示用�轮组提起重G的物体绳子自由端拉力为F重物以速度勘匀速上升不计�擦和绳重则 1�轮组的机械效率为 2 sketch template

如图所示，工人用�轮组提升重物，已知重物重力G=1000N，动�轮重力G动=200N，在工人用力F作用下，重物匀速上升，30s达到规定高度6m sketch template

建�工地用如图l7所示的简易�轮组提升砖块某工人将重500 N的砖块一次性匀速提升到离地面4 M高的砌墙处所用拉力为200 N时间为20 sketch template

31．如图所示工人用定�轮匀速提升重为180 N的物体所用的拉力为200 N在5s内物体升高的高度为2 M．此过程中求 1有 sketch template

如图所示工人用�轮组匀速提升重600N的货物所用的拉力F为400N货物在50s内匀速上升5m．在此过程中货物上升的速度是01m/s sketch template

某工地上用如图6所示的�轮组匀速提升质量为500kg的物体在物体上升08m的过程中拉力F的功率为2500W此�轮组的机械效率为80% sketch template

某建�工地上工人用图所示的动�轮将重450N的物体匀速竖直提升了6m若已知动�轮此时的机械效率为90%请计算1工人提升重物所做的有 sketch template

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