质量为m的物体在距离地面h高处由静止竖直下落到地面下落的加速度为45g下列说法中错误的是 A．物体的机械能减�15mghb．物体的动能 Sketch Coloring Page

质量为m的物体在距离地面h高处由静止竖直下落到地面下落的加速度为45g下列说法中错误的是 A．物体的机械能减�15mghb．物体的动能 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 #4997 Rafael Leite Jose Rondon

anonymous

anonymous
sketch #4997 Rafael Leite Jose Rondon

sketch #5316

anonymous

anonymous
sketch #5316

sketch #3742 Homer by Koes Maung

anonymous

anonymous
sketch #3742 Homer by Koes Maung

sketch #4874 Milla Jovovich by Kimmy Kitty Perry Priemus

anonymous

anonymous
sketch #4874 Milla Jovovich by Kimmy Kitty Perry Priemus

sketch #5182 Inuyasha by Sepp Herberger

anonymous

anonymous
sketch #5182 Inuyasha by Sepp Herberger

sketch #4700

anonymous

anonymous
sketch #4700

sketch #3897 dolphins playing over the sea

Rachel Christa Ibarrientos
sketch #3897 dolphins playing over the sea

sketch #3755 Panda by Roberto Castro Colimil

anonymous

anonymous
sketch #3755 Panda by Roberto Castro Colimil

sketch #5027

anonymous

anonymous
sketch #5027

sketch #2446 Joker by sketchmaster

sketchmaster
sketch #2446 Joker by sketchmaster

sketch #2552

anonymous

anonymous
sketch #2552

sketch #3760 PSY by Juvenilia Alexandrino

anonymous

anonymous
sketch #3760 PSY by Juvenilia Alexandrino

sketch #1045

anonymous

anonymous
sketch #1045

sketch #1328

anonymous

anonymous
sketch #1328

sketch #4209 bushy

anonymous

anonymous
sketch #4209 bushy

sketch #3547 Lady in red Toky Niaina Randrianarisoa

anonymous

anonymous
sketch #3547 Lady in red Toky Niaina Randrianarisoa

sketch #2645 Flowers in window

Rachel Roe
sketch #2645 Flowers in window

sketch #5093 Pedro Henrique Jordan Coquet

anonymous

anonymous
sketch #5093 Pedro Henrique Jordan Coquet

sketch #2926 Power Puff Girls by Sylvie Rieux

anonymous

anonymous
sketch #2926 Power Puff Girls by Sylvie Rieux

sketch #4436 Bob Marley by Luiza Irma

anonymous

anonymous
sketch #4436 Bob Marley by Luiza Irma

sketch #3506 Goku by Saul Mansanares

anonymous

anonymous
sketch #3506 Goku by Saul Mansanares

sketch #3127 Hulk George Lucaz

anonymous

anonymous
sketch #3127 Hulk George Lucaz

sketch #4232 Tobirama by Kadi Kader

anonymous

anonymous
sketch #4232 Tobirama by Kadi Kader

sketch #5091 The Red Lady by অনন্ত জলিল

anonymous

anonymous
sketch #5091 The Red Lady by অনন্ত জলিল

sketch #4891 Pikachu by Resul Danacı

anonymous

anonymous
sketch #4891 Pikachu by Resul Danacı

sketch #2087 zay lin

Zay Lin
sketch #2087 zay lin

sketch #734 ytsfsfsdhgdhgf

Melissa Cogo
sketch #734 ytsfsfsdhgdhgf

sketch #4446 EDDIE by يآآسر محمد

anonymous

anonymous
sketch #4446 EDDIE by يآآسر محمد

sketch #5067

anonymous

anonymous
sketch #5067

sketch #5440

anonymous

anonymous
sketch #5440

tomski质量为m的物体在距离地面h高处由静止竖直下落到地面下落的加速度为45g下列说法中错误的是 a．物体的机械能减�15mghb．物体的动能 coloring

质量为m的物体在距离地面h高处由静止竖直下落到地面下落的加速度为45g下列说法中错误的是 A．物体的机械能减�15mghB．物体的动能 sketch template

质量为m的物体在距地面h高处以g/3的加速度由静止竖直下落到地面下列说法中正确的有 A 物体的重力势能减�mghB 物体的机械能 sketch template

5．如图所示质量为M的斜劈形物体放在水平地面上质量为m的粗糙物块以某一初速度沿劈的斜面�上�至速度为零后又加速返回而物体M始终保持静止 sketch template

如图所示质量为m的物体在沿斜面�上的拉力F作用下沿放在水平地面上的质量为M的倾角为粗糙斜面匀速下�此过程中斜面保持静止则地面对斜面 A sketch template

关于角动量的基础例题（浅学版）知乎 sketch template

如图5所示水平地面上放一质量为m的物体在与水平方�成θ角的拉力F 作用下处于静止状态已知物体与地面间的动�擦因数为μ则地面对物体的 图 sketch template

如图质量为M的物体从地面上方H处无初速释放落在地面后出现一个深为h的�在此过程中 A．重力对物体做功MgHB．物体重力势能减� sketch template

$质量为m的物体从距地面h高处自由下落当它落到离地面还有$frac{h}{3}$时它的速度大小为 A．$frac{{sqrt sketch template$

如图5所示水平地面上放一质量为m的物体在与水平方�成θ角的拉力F 作用下处于静止状态已知物体与地面间的动�擦因数为μ则地面对物体的 图 sketch template

11．如图所示质量均为m的两物体bc分别与轻质弹簧两端相连接将它们静止放在地面上弹簧劲度系数为k一质量也为m 小物体a从距b物体h sketch template

如图所示质量为m的物体在的水平力作用下沿倾角为q =30º的斜面�上匀速运动根据力学规律和题中提供的信息你还能求得哪几个作用力及跟�擦 sketch template

质量为m的物体放在质量为M倾角为θ的斜面体上斜面体置于粗糙的水平地面上用平行于斜面的力F拉物体m使其沿斜面�下匀速运动M始终静止则 sketch template

如图所示质量均为m的物体AB通过一根劲度系数为k的轻弹簧相连开始时B放在地面上AB都处于静止状态．现用手通过细绳缓慢地将A�上提升 sketch template

质量为m的物体以速度v0竖直�上抛出物体落回地面时速度大小为7v0/8设物体在运动中所受空气阻力大小不变如图所示求1物体在 sketch template

如图所示ABC三个物体的质量均为mBC两物体与一轻随轻质弹簧相连静止在水平地面上弹簧劲度系数为k．物体A从距物体B某一高度h处由 sketch template

6．如图2所示水平地面上的物体A在斜�上的拉力F作用下�右作匀速直线运动则 A．物体A可能不受地面支持力的作用 B．物体A可能受到三个 sketch template

如图5所示一质量为m的物体以速度v水平飞�半圆球的上方运动过程中不和任何一个点接触落到地面的C点问速度v至�要多�BC的距离为多� sketch template

1．如图所示在倾角为θ的固定光�斜面上质量为m的物体受外力F1和F2的作用F1方�水平�右F2方�竖直�上若物体静止在斜面上则下列 sketch template

如图所示质量为m的物体在与竖直方�成θ角斜�上的推力F作用下沿竖直墙�上做匀加速直线运动若物体与墙间的动�擦因数为μ求物体的加速度 sketch template

如图所示质量m的物体静止在倾角θ的斜面上当斜面沿水平方��右匀速移动了距离s时物体m相对斜面静止．下列关于力对物体做功的说法中正确的是 sketch template

1静止的物体1下图1中，物体A静止在水平地面上图2中，物体B静止在斜面上图3中，物体C被压在竖直墙壁上而处于静止 sketch template

如图所示质量均为m的物体AB通过一根劲度系数为k的轻弹簧相连开始时B放在地面上AB都处于静止状态．现用手通过细绳缓慢地将A�上提升 sketch template

质量m=4kg的物体在F1=10N的水平拉力作用下沿水平面做匀速直线运动，撤去F1后 sketch template

质量为m的物体由静止开始沿直线运动若物体只受恒力F的作用则对于物体的位移s速度v加速度a和其动量P随时间变化的情况下图中正确的是 sketch template

如图所示质量为m的物体静止在倾角为θ的斜面上物体与斜面间的动�擦因数为μ．现在使斜面体�右水平匀速移动距离L则�擦力对物体做功为物体与 sketch template

8．如图所示质量为m的物体A静止在地面上上表面带有弯钩一弹簧秤由弹簧带有挂钩的拉杆和带有提环的外壳组成可以认为弹簧秤的 总质量集中 sketch template

质量为m的物体B置于地面上通过一劲度系数为k的轻弹簧与物体A相连开始时AB都处于静止状态如图所示．现通过细绳将物体A�上匀加速提升 sketch template

如图所示质量为m的物体放在倾角为θ的斜面上它跟斜面间的动�擦因数为μ在水平恒定的力F作用下物体沿斜面�上匀速运动则物体所受的�擦力是 sketch template

质量为m的物体放在水平面上它与地面之间的动�擦因数为μ现对物体施以方�与水平方�成θ角斜�上的拉力F如图所示．为了使物体沿水平地面保持 sketch template

质量为m的物体放在质量为M倾角为θ的斜面体上斜面体置于粗糙的水平地面上用平行于斜面的力F拉物体m使其沿斜面�下匀速运动M静止则下列说法 sketch template

16．如图所示一个质量为M的物体放在水平面上物体上方安装一个长度为L劲度系数为k的轻弹簧现用手拉着弹簧上端的P点缓慢�上移动直到物体 sketch template

如图所示质量m的小物体从光�曲面上高度H处释放到达底端时水平进入轴心距离L的水平传送带已知物体与传送带间的动�擦因数为μ．求1求 sketch template

质量均为m的物体A和B分别系在一根不计质量的细绳两端绳子跨过固定在倾角为30°的斜面顶端的定�轮上斜面固定在水平地面上开始时把物体B拉到 sketch template

如图所示一质量为m的物体在沿斜面�上的恒力F作用下由静止从底端�上做匀加速直线运动．若斜面足够长且表面光�倾角为θ．经时间t恒力F做功 sketch template

2．如图所示质量为m的物体A和B用绳连接后挂在两个高度相同的光�的�轮上处于平衡状态在两�轮中点再挂一个质量为m的钩码C设竖直绳足够 sketch template

free web stats