用如图所示�轮组匀速提升重为200n的物体人对绳的拉力为125n不计绳重和�擦�轮组的机械效率为 ．如果人的体重为600n拉动过程中绳 Sketch Coloring Page

用如图所示�轮组匀速提升重为200n的物体人对绳的拉力为125n不计绳重和�擦�轮组的机械效率为 ．如果人的体重为600n拉动过程中绳 Template

Background image: Hide Show

View Larger Image Image Credit: 1010jiajiao.com

please wait, the page is loading...

More Sketches

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

sketch #4405 Cat by Nizamuddin Shuja

anonymous

anonymous
sketch #4405 Cat by Nizamuddin Shuja

sketch #3388 Fight Club by Alvaro Velasquez

anonymous

anonymous
sketch #3388 Fight Club by Alvaro Velasquez

sketch #2453 Koi Fish

anonymous

anonymous
sketch #2453 Koi Fish

sketch #1474

anonymous

anonymous
sketch #1474

sketch #5232 Avril by Teresa Temacha

anonymous

anonymous
sketch #5232 Avril by Teresa Temacha

sketch #20471

anonymous

anonymous
sketch #20471

sketch #3595

anonymous

anonymous
sketch #3595

sketch #538

Umar Ushaim Kan An
sketch #538

sketch #3639

anonymous

anonymous
sketch #3639

sketch #3656 Igor by Vincent Baudement

anonymous

anonymous
sketch #3656 Igor by Vincent Baudement

sketch #2616 Green Day by sketchmaster

sketchmaster
sketch #2616 Green Day by sketchmaster

sketch #308

Helyryn
sketch #308

sketch #3999 Deadmau by Speeð Üp Säm

anonymous

anonymous
sketch #3999 Deadmau by Speeð Üp Säm

sketch #672 Snails pace

Rachel Roe
sketch #672 Snails pace

sketch #4974 Eminem by Juan Garcia

anonymous

anonymous
sketch #4974 Eminem by Juan Garcia

sketch #5163

anonymous

anonymous
sketch #5163

sketch #1068 dançando

anonymous

anonymous
sketch #1068 dançando

sketch #4698

anonymous

anonymous
sketch #4698

sketch #5270 Fresh prince by Fatér Szilvia

anonymous

anonymous
sketch #5270 Fresh prince by Fatér Szilvia

sketch #3259

anonymous

anonymous
sketch #3259

sketch #342 Forest scene

Chris Shrimp Lonsdale
sketch #342 Forest scene

sketch #2668 Butterfly by Loai Issa

Loai Issa
sketch #2668 Butterfly by Loai Issa

sketch #873

Laura Agapi Asnicar
sketch #873

sketch #5113 Growlithe and Arcanine by Kervinzitho del Piero

anonymous

anonymous
sketch #5113 Growlithe and Arcanine by Kervinzitho del Piero

sketch #5275

anonymous

anonymous
sketch #5275

sketch #3516

Laura Agapi Asnicar
sketch #3516

sketch #4424 MJ by Nycole Prietsch

anonymous

anonymous
sketch #4424 MJ by Nycole Prietsch

sketch #523 the man

anonymous

anonymous
sketch #523 the man

sketch #2810 Lennon by El Harouati Nassera

El Harouati Nassera
sketch #2810 Lennon by El Harouati Nassera

sketch #1551 donara

Donara Smbatyan
sketch #1551 donara

tomski用如图所示�轮组匀速提升重为200n的物体人对绳的拉力为125n不计绳重和�擦�轮组的机械效率为 ．如果人的体重为600n拉动过程中绳 coloring

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

用如图所示的�轮组匀速提升重为100N的物体拉力F=60N�轮组的机械效率为 在物体匀速上升的过程中物体的动能 物体的重力势能选 sketch template

用如图所示的�轮组将物体�左移动A B两个�轮中A是 �轮B是 �轮在不考��轮重和�擦时物体与桌面的�擦力是90N匀速移动物体 sketch template

用如图所示的�轮组提升重为G=3200N的重物当重物以05m/s的速度匀速上升时拉力F的功率是2000W．忽略�擦和绳重．求1动�轮 sketch template

2．如图所示在不计绳重和�擦的情况下用动�轮把重40N的物体匀速提高2m所用的拉力为25N则拉力做功是 J动�轮的机械效率是果把 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

如图所示用�轮组将密度为 28×103kg/m3质量为56kg�属块完全在水中匀速提升05m加在绳子自由端的拉力是F动�轮重120N 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

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

在图所示的�轮组中用110N的力在5s内把重为200N的物体匀速提高2m则 A．对重物做的有用功约为200J B．�轮组的机械效率约为90 sketch template

分别用图甲乙丙所示的�轮组匀速提起同一重物G时所用的拉力分别为F1F2和F3若不计�轮重及�擦这三个力的关系为 A．F1＜F2 sketch template

16．如图所示的�轮组匀速拉起重3牛的物体若不考�动�轮和绳重及�擦绳自由端的拉力为 牛若绳端的实际拉力为2牛物体在4秒内被匀速提高0 sketch template

用如图所示的�轮组将物体�左移动A B两个�轮中A是 �轮B是 �轮在不考��轮重和�擦时物体与桌面的�擦力是90N匀速移动物体 sketch template

某人用如图15所示的�轮组吊起一个重1000N的物体�轮组的机械效率为80%他在5s内使绳子自由端移动8m求 1物体上升的高度和 sketch template

如图所示某人用�轮组匀逮提升重120N的物体人的拉力为50N在2s内绳的自由端移动了6米1物体上升的高度2人所做的额外功是 sketch template

用四个�轮和两根相同的绳子组成如图所示的甲、乙两个�轮组用它们匀速提起货物在绳自由端施加竖直的拉力分别为F甲和F乙物重分别为G甲和G乙 sketch template

百度教育 sketch template

1如图所示物体A静止在水平地面在图中画出它所受的力的示意图．2用如图所示的�轮组提升重物若拉力F将绳子的自由端移动1m时重物 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

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

用如图所示的�轮组匀速提升浸没在水中的物体，已知G=3900N。圆柱形容器底面积S=06m²，物体浸没在水中时水面高度为100cm，当物体 sketch template

10．用相同的定�轮和动�轮组成甲乙两个�轮组如图8所示用它们来提升同一重物甲�轮组将重物举高1m乙�轮组将重物举高2m在不计绳 sketch template

7．用图3所示的�轮组将重为10N的物体匀速提升01m拉力F＝6N在这一过程中下列说法正确的是 A．拉力所做的有用功为1J B．拉力 sketch template

用如图所示�轮组提升重物．人用50N的拉力F15s内使重为90N的物体匀速上升了3m．不计绳重和�擦求1动�轮的重．2人拉绳子 sketch template

如图所示用F为40 N的拉力通过�轮组拉着重为300 N的物体A在水平面上以04 M/s的速度�左做匀速直线运动物体受到的�擦力是物重 sketch template

如图所示的�轮组拉动物体A沿水平地面匀速前进已知物体A的重力为500N拉力大小为50N则物体与地面间的�擦力f=150150N若物体 sketch template

如图甲所示轮轴实质是一种杠杆．小捷同学为了探究轮轴的平衡条件进行了如下实验实验一如图乙所示重物G通过细绳绕在轴上在轮的边缘沿切线 sketch template

用如图所示的�轮组提升重物人用500N的拉力F在20s内使重为800N的物体匀速上升了3m．不计绳重和�擦则人拉绳子做功的功率和�轮组的 sketch template

某人用如图所示的�轮组匀速提升500N的重物所用的拉力F为300N 绳子自由端被拉下2m在此过程中求�拉力F所做的功 ��轮组的 sketch template

如图所示用�轮组提起一个密度为25×103kg/m3体积为004m3的石块作用在绳子自由端的拉力F为400N石块在20s内匀速上升 sketch template

10．用图所示的�轮组水平拉动重为100N的物体以05 M／s的速度在水平地面上匀速运动若物体受到的�擦力为60 N不计机械自重和�擦 sketch template

某人通过如图所示的�轮组用2N的拉力F将物体M匀速提升了01m的距离若M重42N则有用功为042J此�轮组的机械效率为70% sketch template

59．如图所示物重G为600N用�轮组将重物匀速提升5m所用拉力F为250N�轮组的机械效率为 ．若不计�擦被提升的物重增加时�轮 sketch template

用如图所示的�轮组提升物体A在匀速竖直提升物体A的过程中卷扬机加在绳子自由端竖直�下的拉力F为400N物体A上升的速度vA为01m/s sketch template

用如图所示的�轮组将物体�左移动A B两个�轮中A是 �轮B是 �轮在不考��轮重和�擦时物体与桌面的�擦力是90N匀速移动物体 sketch template

free web stats