a.the sum of the forces (合力)

小心大狼2022-10-04 11:39:541条回答

a.the sum of the forces (合力)
b.the sum of their moments about point Q (所有力在Q的力偶之和)
c.the moment of the forces about the y axis (y轴的力偶)
若是把它们拆成沿x,y,z轴的力,每个分力都会有力矩, 那不是要算15次力矩?
(上面的题目是力矩不是力偶,我打错了)

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xxxx8 共回答了25个问题 | 采纳率96%
把力从其作用点拆成沿各轴的力再加减,沿力作用方向移动不产生力偶,垂直作用方向需要增加相应力偶 给你个思路 图用电脑画太恶心了
拆了以后先能抵消的抵消掉
1年前

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英语翻译Optimism and pessimism are powerful forces,and each of u
英语翻译
Optimism and pessimism are powerful forces,and each of us must choose which we want,so as to shape our outlook and our expectations.From which perspective do we want to view life?Will we look up in hope or down in despair?An optimistic attitude is not a luxury;it's a necessity.The way you look at life will determine how you feel,perform,and how well you will get along with others.Conversely,negative thoughts,attitudes,and expectations feed on themselves;they become a self-fulfilling prophecy.Pessimism creates a sad and hopeless place where no one wants to live.When the world is seen as a hopeful,positive are more likely to achieve.Optimism doesn'tneed to be naive.You can be an optimist and still recognive that problems exist and that some of them are not dealt with easily.Yet optimism makes a difference in the attitude of the problem solver!Optimism draws our attention away from negativism and channels it into positive,constructive thinking.When you're an optimist,you're more concrened with problem-solving than with useless fault-finding.To tackle a big problem ,one needs both optimism and persistence.
要翻译的连贯的,不要逐字翻译的 急 用 有道翻译的 不 连贯靠 你们了doesn'tneed 改成 doesn't need
recognive 改成 recognize
luntan5281年前1
拽拽rr 共回答了18个问题 | 采纳率100%
乐观和悲观是强大的力量,我们每个人都必须选择我们想要的,所以作为塑造我们未来的展望和预期.从哪个角度做我们想看的生活?我们会查找在希望或绝望了吗?乐观的态度不是奢侈品,而是一种必要.你看生活将决定你的感受、执行,以及你如何将与他人相处.反过来,悲观的想法、态度和预期也会自成因果:它们是能自我实现的预言.悲观会制造出悲伤和绝望的地方,没有人想活.当人们把世界看作一个充满希望的,积极的更容易实现.乐观并'tneed是天真的.你可以成为一个乐观主义者,仍然recognive,和存在问题,其中有一些人是不容易处理.然而乐观使一个差异的态度解决问题!乐观主义吸引了我们的注意力从消极的渠道转向积极的、建设性的思考.当你是一个乐观主义者,你会更多的考虑问题的解决,而不是那些毫无用处的吹毛求疵.解决一个大问题,一个既需要乐观和坚持.
请教一句英语翻译“I believe that the most important forces behind the
请教一句英语翻译
“I believe that the most important forces behind the massive M&A wave are
the same that underlie the globalization
process”的标准翻译是“我认为,推动这股巨大的并购浪潮的最重要的力量,也是推动全球化进程的力量”。那我自己翻译起来特别绕,不知道怎么从语法结构的角度来翻译它,求大家指教
我只是块硬盘1年前1
pengjialaosan 共回答了13个问题 | 采纳率92.3%
这个定语从句修饰的是important forces.从它的谓语动词underlie 的形式可以看出,that 的先行词是一个名词复数形式,而这里只有forces 匹配.
句子结构可以调整如下:
I believe that the most important forces (that underlie the globalization process) behind the massive M&A wave are the same.
不过,这样会造成头重脚轻的问题.
句子可以翻译如下:
我认为,加速全球化步伐的最重要力量和大规模合并及收购风潮的背后推手是一样的.
Gadhafi forces strike back at Libya uprising求标题翻译,
昨夜的狂风暴雨1年前1
戒烟如爱 共回答了20个问题 | 采纳率95%
卡扎菲的部队对利比亚起义者进行反击
在fluent12.0后处理results的reports中计算Forces时,产生的Coefficients Pres
在fluent12.0后处理results的reports中计算Forces时,产生的Coefficients Pressure 是什么意思

计算force时,产生个forces,又产生个coefficients,他俩有啥区别,viscous又是指的什么力?回答满意再额外给悬赏噢!


lllpppppo1年前1
您-忘记密码 共回答了18个问题 | 采纳率100%
force是力的大小,就是力的实际值, coefficients是力的系数,是相对值,在reference value里面设置相应的值来求的
viscous是粘性阻力 pressure是压阻力
建议你去看看流体力学相关的书
英语翻译Of the forces shaping higher education none is more swee
英语翻译
Of the forces shaping higher education none is more sweeping than the movement across borders.单词意思都知道.就是看不懂
andytau0071年前4
fengyun8305 共回答了19个问题 | 采纳率84.2%
of the forces shaping higher education,none is more sweeping than the movement across borders.
主语是none 形式主语
还原一下none of the forces which shaping the higher education,is more sweeping than the movement across borders.
意思是 没有比跨国教育更能塑造高等教育了
Chinese army special forces my dream
Chinese army special forces my dream
I'm dream is Cplash I can not do the things I do not have to work school I love the special Chinese army Spike clan no one can stop me I love your Cplash With the total death
xwgqwert1年前1
2rw7y 共回答了17个问题 | 采纳率82.4%
I'm dream改成my dream吧
英语翻译None of the forces shaping higher education is more swee
英语翻译
None of the forces shaping higher education is more sweeping than the movement across border.
ahbencog1年前1
sleim 共回答了15个问题 | 采纳率93.3%
Of the forces shaping higher education none is more
sweeping than the movement across borders.
才是原句
One of the main forces at work is a complete lack of nature,
One of the main forces at work is a complete lack of nature,which is surprisingly beneficial for t
驴败驴战1年前1
呆呆木瓜 共回答了18个问题 | 采纳率100%
令人惊讶的是,工作中的主力之一是一种完全非自然的,有益于.
1)name and describe the four forces that are at work within
1)name and describe the four forces that are at work within the nucleus of an atom.
2)the metal thallium occurs naturally as 30% thallium-203 and 70% thallium-205.calculate the atomic mass of thallium.
3)why is gravitational force in the nucleus so small?
4)could a nucleus of more than one proton but no neutrons exist?explain.
请帮我答题目 不是翻译 好的追加100分
pili66581年前1
九江00 共回答了11个问题 | 采纳率100%
1)name and describe the four forces that are at work within the nucleus of an atom.
residual strong force(binding force), electromagnetic forces(van der Waals forces),gravitational force
2)the metal thallium occurs naturally as 30% thallium-203 and 70% thallium-205. calculate the atomic mass of thallium.
204.4
3)why is gravitational force in the nucleus so small?
Because the nucleus itself is very small, and F=mg, gravitational force is proportional to the mass.
4)could a nucleus of more than one proton but no neutrons exist? explain.
No.
An atom with more than one proton with the smallest atomic number is Helium. Helium has isotopes 3-He and 4-He, it is only stable when there are at least one neutron, hence a nucleus of more than one proton but no neutrons do not exist. The neutrons also balance out the forces within the neucleus. With only protons, the repulsion would be too strong for the binding force to balance.
呵呵,我在国外学习,去年才学的这些.现在都已经忘了不少了,哈哈哈哈.
英文专署名词fighting forces的意思?lieutenant general的意思?Dole-Shalala的
英文专署名词
fighting forces的意思?
lieutenant general的意思?
Dole-Shalala的意思?
萤火虫661年前1
cutejiazi 共回答了31个问题 | 采纳率90.3%
fighting forces 作战部队
lieutenant general 中将
Dole-Shalala 多尔参议员(Bob Dole)和沙拉拉部长(Donna Shalala)
Three forces are acting on an object located on an inclined
Three forces are acting on an object located on an inclined plane.The incline is tilted at an angle θ=34°.One can show that the angle shown in the diagram is this same θ.Assume the +x direction is up and to the right.Assume the +y direction is up on to the left.
What is the component of the net force in the direction parallel to the incline (the x-axis)?
What is the component of the net force in the direction perpendicular to the incline (the y-axis)?
The three forces are:F1 = 61.35 N; F2 = 74.0 N; and F3 = 8.0 N.
默然施舍1年前2
断线ggyy 共回答了20个问题 | 采纳率95%
x方向的净力为:F3-F2sinθ
y方向的净力为:F1-F2cosθ
forces have arisen that seek to change america's essential n
forces have arisen that seek to change america's essential nature.如何理解句中的that作的成分?求翻
如何分析得出是that 引导定语从句,在从句中做主语。
四月五月和六月1年前1
彩蝶0729 共回答了27个问题 | 采纳率88.9%
试图改变美国本质的部队已经出现 that 引导定语从句 在从句中做主语
求这篇短文的寓意Weak forces of good and evil was expelled to the sky
求这篇短文的寓意
Weak forces of good and evil was expelled to the sky.Asked Zeus is good at,how can we return to earth to.Zeus told him that we should not and go,one by one of the world to visit it.Evil and people very close,so one after another to find them.Good because down from the sky,on the very slow to very slow.
feizild1年前2
qq5023 共回答了15个问题 | 采纳率93.3%
This is not Enlgish,but simply a bunch of English words put together.
连词and 的问题She was touched and transformed by forces.这句话里by fo
连词and 的问题
She was touched and transformed by forces.
这句话里by forces是只touched by forces 还是transformed by forces,还是两个都包括?
谢谢
yuanzhu00001年前8
qj19831121 共回答了17个问题 | 采纳率82.4%
应该是都包括了
and连接了两个相同形式的谓语动词
后面的词语对and 前后的作用相同
这种句子不少见
比如:we laugn and sing happily.
Which of the following was NOT one of the three forces that
Which of the following was NOT one of the three forces that led to the modern development of Europe
A.The growth of capitalism.
B.The Renaissance.
C.The Religious Reformation.
D.The spiritual leadership of the Roman Catholic Church.
79062111年前1
服部龙藏 共回答了18个问题 | 采纳率94.4%
D.The spiritual leadership of the Roman Catholic Church.
drive-forces是什么意思
陌莉1年前1
timberfu 共回答了25个问题 | 采纳率88%
drive-forces
驱动力
很高兴为您解答
您的采纳是我答题的动力
如果你对这个答案有什么疑问,
The curiosity brought to light forces of nature in the power
The curiosity brought to light forces of nature in the power of the atom.
dxndxn1年前1
DecemberSong 共回答了14个问题 | 采纳率78.6%
好奇(心)导致(人们)发现了原子能中的自然力
Mountains were made over millons of years by forces()in the
Mountains were made over millons of years by forces()in the earth为何填deep不填deeply?
lovelyhappy19831年前2
湖南牛仔1 共回答了12个问题 | 采纳率75%
形容词用后置定语,修饰前面的forces
2The accelerator forces the reader to reader fast,making wor
2The accelerator forces the reader to reader fast,making word by word reading,
3At first comprehension is sacrificed for speed.
4I'm sorry but what he thinks is not of the least importance to me.
5Jane read the article over ten minutes but continued to feel the event related were incredible.这几句怎莫翻译
放肆爱你1年前2
水儿111 共回答了20个问题 | 采纳率95%
3 起初,只求速度,不求理解.
4 不好意思,我不在乎他怎么想.
5 简反复读了这篇文章有10分钟之久,但仍然觉得所涉及到的事很难以置信.
英语翻译The forces that act on a structure are called loads.They
英语翻译
The forces that act on a structure are called loads.They belong to one of two bread categories:dead load and live load.Dead loads are those that are permanent,including the weight of the structure itself,which is sometimes called the self-weight.In addition to the weight of the structure,dead loads in a building include the weight of nonstructural components such as floor coverings,partitions,and suspended ceilings (with light fixtures,mechanical equipment,and plumbing.) All of the loads mentioned thus far are forces resulting from gravity and are referred to as gravity loads.Live loads,which can also be gravity loads,are those that are not as permanent as dead loads.They may or may not be acting on the structure at any given time,and the location may not be fixed.Examples of live loads include furniture,equipment,and occupants of buildings.In general,the magnitude of a live load is not as well defined as that of a dead load,and it usually must be estimated.In many cases,a structural member must be investigated for various positions of a live load so that a potential failure condition is not overlooked.
If a live load is applied slowly and is not removed and is reapplied an excessive number of times,the structure can be analyzed as if the load were static.If the load is applied suddenly,as would be the case when the structure supports a moving crane,the effects of impact must be accounted for.If the load is applied and removed many times over the life of the structure,fatigue stress becomes a problem,and its effects must be accounted for.Impact loading occurs in relatively few buildings,notably industrial buildings,and fatigue loading is rare,with thousands of load cycles over the life of the structure required before fatigue becomes a problem.For these reasons,all loading conditions in this book will be treated as static,and fatigue will not be considered.
dreamlvr1年前4
昕星 共回答了17个问题 | 采纳率88.2%
dead load 固定负载
live load, 活荷载;活载重,活负载
地面装饰及地毯floor coverings
Partitions 隔墙系统
light fixtures灯具
厕、浴间设备plumbing fixtures
moving crane行走中的吊车
作用于一个建筑结构的力叫做“负载”.他们属于两个相对应的类别之一:固定负载和活负载.固定负载是那些恒定不变的负载,包括有时称为“自重”的建筑结构自身的重量.除了建筑结构的重量外,建筑物中的固定负载包括非建筑结构成分例如地毯、隔墙系统和吊顶(带有灯具,机械设备和厕、浴间设备.)的重量.因为所有提到的这些负载均因重力引起,故指的是“重力负载”.活负载(也可以是重力负载)不象固定负载那样恒定.它们可能在任何给定的时间作用于或离开建筑结构,而且活负载的位置也是不固定的.活负载的例子包括家具、设备和建筑居住者.一般来讲,活负载的大小通常不象固定负载那样有详细说明,它通常必须估计.多数情况下,必须研究构件不同作用位置的活负载以便于潜在的破坏条件不被忽视.
如果活负载被缓慢加载并且不被移走,以及频繁地重复加载,建筑结构的(受力情况)分析时可以把负载看作静态的.如果负载是突然加载的,例如该建筑结构支撑了一个行走的吊车的情况,就必须考虑到“冲击”的效应了.如果负载在建筑结构的整个寿命中多次加载和去除,疲劳应力成为一个问题,这种效应也必须计算在内.冲击性加载发生在相对较少的建筑物中,较明显的是工业性建筑,而(此类建筑中)疲劳性加载则很少见,建筑结构的整个寿命中有成千上万次的加载循环才需要考虑疲劳问题.因为这些原因,本书中所有负载条件用静态负载处理,而不考虑疲劳问题.