题库网 (tiku.one)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp，上传完成后会在上方生成预览，用鼠标连续双击缩略图，或拖动缩略图，该图片就被绑定至本题，显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片，绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习：Physics Unit9: Static Equilibrium, Elasticity and Fracture
本习题练习来源于题库网 (https://tiku.one)，是在线习题练习的打印版，您也可以访问本平台网站(https://tiku.one/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 63 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://tiku.one/test63.html
 作者: admin    总分: 44分  得分: _____________

答题人: 匿名未登录  开始时间: 22年07月27日 22:54  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What condition or conditions are necessao)yrp;oudbx pn.2 c6+4qr 8 jary for rotational equilibrium?

参考答案:    
标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What condition or conditions are necessarfedk) r2p-2 dq-qqbc8 e :+pjry for static equilibrium?

参考答案:    
标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A book weighs 6 N. When held at restb -6ijqmv2/h ;r3 b2xy*cm(kewj3aft above your head the net force on the book immjft/j2yk xa*2 we-bi ;6h bv 33rcq(s

参考答案:    
标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A rocket moves through out- oa( cf27traher space with a constant velocity of 9.8 m/s. What net force acts(a act ho2rf7- on it?

参考答案:    
标记此题
5#
 
  180

参考答案:    
标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person weighing 800 N stands with one foot on each of two bathroom s,wkg ( sta*fpxpte815cales. Which statement is deg1fx twa,*te5sp 8kp(finitely true?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A heavy boy and a light girl are balanced on a massless seesaw. If tl)7czp-*+*vut-t(w r w zx hgyhey both mol uw-r(wcxz-)p t**v+ y7gtzhve forward so that they are one-half their original distance from the pivot point, what will happen to the seesaw?

参考答案:    
标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cone balanced on its ll4ydta)y*fj .ylus bl+8 ( jsgj/ 8u8small end is in

参考答案:    
标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cube resting on a horizontal tabletop is inpq/x:8 mx :uay

参考答案:    
标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two identical bricks, each )/*7fl j8h4tidw iwwngs:7 cq mllp61of dimensions 20.0 cm x 10.0 cm x 6.0 cm. One is stacked on the other, and the combination is then placed so that they project out over the edge of a table. What is the maximum distance that the end of the top brick ca8)q:*dlwhliw 6/nm fipc7gl71t4w sjn extend beyond the table edge without toppling?

参考答案:    
标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 36-kg round table is supported by three legs placed equal di8gls626 l1toxv idg( qstances apart on the edge. What minimum mass,sl 1l8ggdx662(o qivt placed in the middle between two supports on the table's edge, will cause the table to overturn?

参考答案:    
标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Stress is

参考答案:    
标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Strain is

参考答案:    
标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is hung from identical wires made of al3f p/sbgr6 ap 6;(cnc-vf gn*cuminum, brass, copper, and steel. Whi ccbr6gn /f;pgsp3nv(f* -ac6ch wire will stretch the least?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A copper wire is found to break when subjh(qzf -d/rwbp.k8 5qjected to minimum tension of 36 N. If the wire diameter were half as great, we would expect the wire to break when subjected to a minij-q5( kq.pbfh/d rw8zmum tension of

参考答案:    
标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The horizontal component of the buttressing force ai bm6o; y(qe8ft the base of a pointed arch b(fm;8eiq6 yo is

参考答案:    
标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A lever is 5.0 m long. The distance from the fulcrum to the weight to be*zpf*t oqh ff0p 6q+(due gf/8.nz, tf lifted is 1.00qd gzhep*f/fz fo f8+nu.(tt,6*qpf m. If a worker pushes on the opposite end with 400 N, what is the maximum weight that can be lifted?

参考答案:    
标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A lever is 5.0 m long. The distance from the as ;+n2: qi:bvsoqux6fulcrum to the weight to be lifted is 1.0 m. If a 3000 N rock is to be:q ; n2svuaio:b xs+q6 lifted, how much force must be exerted on the lever?

参考答案:    
标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A boy and a girl are balanced on a massless seesaw. The boy has a mass omf)x( 2k,wcn.41tlhtao ys 4pf 75 kg and the girl's m1p 4c ,y2kas l4mftt.o nhwx()ass is 50 kg. If the boy sits 2.0 m from the pivot point on one side of the seesaw, where must the girl sit on the other side?

参考答案:    
标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two children sit on opposite ends of a uniformj*/e)k6x k, n0utvkwz seesaw which pivots in the center. Child A has mass 60 kg and sits 2.0 m from the center. Child B hakt)/v,nk k6w ex* jz0us mass 40 kg. How far from the center must child B sit for the seesaw to balance?

参考答案:    
标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A uniform board of weig08e rmgj h6wd+ht 40 N supports two children weighing 500 N and 350 N, respectively. If the support is at the center of the board and the 500-N child is 1.5 m from the center, what is the position of the 350-N chid6e8wj rh0 mg+ld?

参考答案:    
标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 10-m uniform beam of weight 100 N is 4o+o5p7jzx27aukcyb)4geg i supported by two ropes at the ends. If a 400-N person sits at 2.0 m from the left end of the beam, whatu2pbe 5aj k+cz )4oyg7x4og7i is the tension in the left rope?

参考答案:    
标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 10-m uniform beam of weight 1gq6zb562drq hj.pvx ; 00 N is supported by two ropes at the ends. If a 400-N2v z 6hpr.qx5dj6q;g b person sits at 2.0 m from the left end of the beam, what is the tension in the right rope?

参考答案:    
标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A massless scaffold is held up by a wire at each end. Thv reas4-xu2u /e scaffold is 12 m long. A 300-N box sits 4.0 m from the left end. Wha auvxe /2-r4sut is the tension in each wire?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 200-N scaffold is held up by a wire a..pwll(yb)j7sgb. ns w /ml8wt each end. The scaffold is 18 m long. A 650-N box sitsj bsy n m.lg)/wbsl.8p 7w(.wl
3.1 m from the left end. What is the tension in each wire?

参考答案:    
本习题练习全部题目来源于题库网 (https://tiku.one)，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A uniform meter stick is supported by a kqc6- pmm)nfbley ;1 0gnife edge at the 50-cm mark and has masses of 0.4yf0n-1)l6mp g c b;qem0 kg and 0.60 kg hanging at the 20-cm and 80-cm marks, respectively. Where (at what mark) should a third mass of 0.30 kg be hung to keep the stick in balance?

参考答案:    
标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 500-N person stands on a u +jlm7q p ij 1d/i0vhgu+)1gchniform board of weight 100 N and length 8.0 m. The board is supported at each end. If the support force at the right end is three times that at the left end, how far from the right end is the phgjm lj+gp/q d1uh cv1i i+0)7erson?

参考答案:    
标记此题
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two scales are separated by 2.00 m, d f29 ipnmd2,land a plank of mass 4.00 kg is placed between them. Each scale is observed to readn2 dfl2pimd9 , 2.00 kg. A person now lies on the plank, after which the right scale reads 30.0 kg and the left scale reads 50.0 kg. How far from the right scale is the person's center of gravity located?

参考答案:    
标记此题
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two telephone poles are separated by 407nk-(w ; dnoqzqq 0fu: m and connected by a wire. A bird of mass 0.50 kg lands on the wire midway between the poles, causing the wi:qquznd( 7k0wfo;n-q re to sag 2.0 m below horizontal. Assuming the wire has negligible mass, what is the tension in the wire?

参考答案:    
标记此题
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Assuming the lower arm has a mass of 2.e0 m4l oq0 ca1xiv qnp(m:.gbu:z;t0i8 kg and its CG is 12 cm from the elbow-joint pivot, how much force must the extensor muscle in the 1q.umtl 0v;ox04:c:eg qnm zp(i i0ab upper arm exert on the lower arm to hold a 7.5 kg shot put (Fig. 9-1)?


本题所包含的其它图片:

参考答案:    
标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A passenger van has an outer wheel base width of 2.00 m. Its cent ez395en2bhd yer of gravity is equidistant from the sides, and positioned 1.20 m above the ground. What is the maximum sideways angle at which it can be inclined with hed2e53yn b9zout tipping over?

参考答案:    
标记此题
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Leaning Tower of Pisa is 55 m tall and about 7.0 m in diameter. The top is l7 3)roqrh7l m4.5 m off cenmo)q3lr7lr h7 ter. How much farther can it lean before it becomes unstable?

参考答案:    
标记此题
33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 5000-N force compresses a steel block by 0.0025 cm.p4br sbxukd 0 r0f:c /5;yzm,t How much force would be needed to bc:uzp f,dxr/0msy4 b t50kr; compress the block by 0.0125 cm?

参考答案:    
标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cable is 100-m long and has a cross-sectional areggd, ;zhp8xqs3/:5sg 7 qgf qoa of 1 $mm^{2}$. A 1000-N force is applied to stretch the cable. The elastic modulus for the cable is $1.0 \times 10^{11} \; N/m^2$. How far does it stretch?

参考答案:    
标记此题
35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A steel lift column in+0u lr br()gij a service station is 4.0 m long and 0.20 m in diameter. Yr) +glbj 0(urioung's modulus for steel is $20 \times 10^{10} \; N/m^2$. By how much does the column shrink when a 5000-kg truck is on it?

参考答案:    
标记此题
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A wire of diameter 0.20 mm stretches by 0.20% when a 6.28-N fz/vw 1qv,peof(yb)vu eh i05 .y /zv*borce is applied. What is thh5qv ou ,yi(*vp.ev0//byf1 )w zvbze e elastic modulus of the wire?

参考答案:    
标记此题
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass of 50 kg is suspended from a steel wire jhru2)hgkd : zc((/n rof diameter 1.0 mm and length 11.2 m. How much will the wi(cn:zd jkru2 h)(rhg/re stretch? The Young's modulus for steel is $20 \times 10^{10} \; N/m^2$.

参考答案:    
标记此题
38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Suppose that an 80-kg person walkq q/.jc3v ilfxa )g4e+ing on crutches supports all his weight on the two crutch tips, each of which is circular with a diameter of 4.0+a x3.c)qfg 4ljq v/ie cm. What pressure is exerted on the floor?

参考答案:    
标记此题
39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A bridge piling has an area (+72vxxeqhxnj)0lia k 2e5 peof $1.250 \; m^{2}$. It supports 1875 N. Find the stress on the column.

参考答案:    
标记此题
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An aluminum wire 2.0 m in length and 2.0 mmkv84aczuscb u4 3t y*pi fft *(j3*t3a in diameter supports a 10.0-kg mass. What is the stress in the wire? (The Young's modulus for aluti* 34zvtc 3cst(k8fb f3au4y*p *j auminum is $7.0 \times 10^{10} \; N/m^2$)

参考答案:    
标记此题
41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An aluminum wire 2.0 m in length and 2.0 me8vu ky8md 07dm in diameter supports a 10.0-kg mass. What is the elongation of the wire? (The Young's modulus for 0yd7u8 edmkv 8an aluminum is $7.0 \times 10^{10} \; N/m^2$)

参考答案:    
标记此题
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A shear force of 400 N is applied to one face of an aluminum cube with sides of4ap7npp d1+c w 30 cm. What is the resulting relative displacement? (The shear modulus wan74p c+ ppd1for aluminum is $2.5 \times 10^{10} \; N/m^2$)

参考答案:    
标记此题
43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At a depth of about 1030 m in the sea the pressure has increased by 100 atmosph-kng3z1la,p keres (to a,g1-zapknk l3 bout $10^7 \; N/m^2$). By how much has $1.0 \; m^{3}$ of water been compressed by this pressure? The bulk modulus of water is $2.3 \times 10^9 \; N/m^2$.

参考答案:    
标记此题
44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 55-cm brass rod has a diameter of 30 cm. The compres3p1l.st,ra,vj qu dtr 2x( pl:sive strength of steel is 31., jrp rq ua(dt:l2tvpl, xs$250 \times 10^6 \; N/m^2$. What is the compression force that would break the rod?

参考答案:    
  • :
    •
    总分:44分 及格:26.4分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题，此次习题练习共有 44 道题
    本系统支持习题练习，作业与考试三大模式，作业考试自动评分，成绩排序一键导出，可设定动态变量同一试卷千人千题
    如果您对本系统感兴趣，想加入我们或者想进行任何形式的合作，请加微信 skysky1258

    试卷内容到此结束!   © 2024 题库网 (https://tiku.one)版权所有

    浏览记录|手机版首页|使用帮助|题库网 (https://tiku.one)

    GMT+8, 2025-7-9 22:18 , Processed in 0.373677 second(s), 110 queries , Redis On.