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 necessary for rotational equilibrye g(e +xswtq;-i 4/fmium?

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
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What condition or conditions are necessary for static equilibrium:z v +;ru83jf; lgu5m sggpc*n?

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 rest above your head the net f qk;f.i+17giqp ckpp 3orce on the book isk. g 1kipi+p3 c7;fpqq

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 outer space with a constant ve1zohx* /)bayflocity of 9.8 m/s. What net fbh/1fa*o xy )zorce acts 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 bj vuk sz1r c/h0uu9.7qathroom scales. Which statement isr vqjc709hks/uu.1 zu definitely true?

参考答案:    
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 balancedaw/ :ebsrq:)w k8 k0rg on a massless seesaw. If they both move forward so that they are one-half their original :e0wqk)/rw8rbsg:a k distance from the pivot point, what will happen to the seesaw?

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
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A cone balanced on its small end is -zymw9rroesg,x+ 5 ( hin

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 ho hv l0 2z-i3x pjdj*d8dl,i55cncj7lcrizontal tabletop is in

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, -m+iwp x j+ouh1z) )hfeach of 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)zx)if+jpo+w1 hh m-u end of the top brick can 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 eq+qhb0/yhq o+tual distances apart on the edge. What minimum mass, placed in the middle between two supports on the table's edge, will cqby+/+otqh h0 ause the table to overturn?

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
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Stress is

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
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 aluminum, n8d 02s uxvfh5xgs) l1brass, copper, and steel. Which wire will 8g unxx15sv2f 0dls h)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 subjected to minimum tenr./x9ei fkzx *gx69tddt3q y5sion of 36 N. If the wire diameter were half as great, we would expect the wire to break w93xd6y/gr. dt *txi9xze f5 qkhen subjected to a minimum 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 ath xi4y 9,ilz, kmh5 qlha-h73tgc/e 6q the base of a pointed arch eq63h m/ -59hqhahg,l k7lzcxit4, iy 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 thojdl,4ag q6/o be lifted is 1.od46 /,qlgah j0 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 distag8cibo mq 2hn( ,by3*nnce from the fulcrum to the weight to be lifted is 1.0 m. If a 3b ,i*g2mhq byn3 n(8co000 N rock is to be lifted, how much force must be exerted on the lever?

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
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 o 3 hdhq,ubs(/uf 75 kg and the girl's mas huush( b/3,dqs 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 opposd9kmyhue1p fiezd d)wug -u n/s3h a475m j-/+ite ends of a uniform seesaw which pivots in the center. Child A has mass 60 kg and sits 2.0 m from the center. Child B has mass 40 kg. How far from the center must child B sit for e kg -dm sunmp 1/7eajz9)uifhu/y-4hd53w +dthe seesaw to balance?

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
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A uniform board of weight 40 N supports two chid9a1win d: 7xhldren weighing 500 N and 350 N, respectively. If the supportdwn:ahxi 719 d 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 child?

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 100bxk21-8gza 11veqb(0u l tktf N is supported by two ropes at the ends. If a 400-N person sits at 2.0 m from the left end ofb( -ekquxtt 28kv 1bzg10a1f l the beam, what is the tension in the left rope?

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
23#
 
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 supported by two ropes at the ends. If a ssw5zrdnus : h)o*mn.4 w-8ab 400-N person sits at 2.0 m from the left end of the beam, what is the tension shmnbr asod-:5.s zw 8*wu)4nin 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 bycas.e;a(ilbh* z/ie3aii1 z 8 a wire at each end. The scaffold is 12 m long. A 300-N box eba3 a;1 ./ici sa z8hlii(*zesits 4.0 m from the left end. What is the tension in each wire?

参考答案:    
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 at each end. The scaffold is 18 m90w;bpmpg ur1 long. A 6r1g pu0w;pm 9b50-N box sits
3.1 m from the left end. What is the tension in each wire?

参考答案:    
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 knife edge at the 50-cm mark and has ma61 (b0*kezex u *wvaugsses of 0.40 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 st* z6 ve0 uage(xwb*ku1ick 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 uniform board of weight 100 N and l5) vhr; gwsdc2,9 ukscength 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 persouwv; cc9 sr,2)gh5d ksn?

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, a z5rum0t,l uj(nd a plank of mass 4.00 kg is placed between them. Each scale is observed to read 2.00 kg. A person now lies on the plank, after which the right scale reads 305,u(zr0jtl m u.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:    
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
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two telephone poles are separated by 40 m nhyu h5gs971h3+ gle gand connected by a wire. A bird of mass 0.5 nsge7yhgl5g+9hu 1 3h0 kg lands on the wire midway between the poles, causing the wire 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 a w:x+t.koht4 nrm has a mass of 2.8 kg and its CG is 12 cm from the elbow-joint pivot, how much force must thex.ot h:4nkt+w extensor muscle in the 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 oo;me*s8 lv9srf 2.00 m. Its center of gravity is equidistant from the sides, and positioned 1.20 m above the ground. What is the maximum sides sm 9e*rl;v8oways angle at which it can be inclined without 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 kp0 ; f5vll3kvis 4.5 m off centelkk l3;0vf vp5r. 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. How much force would mten,6ty. an( be neededayt n6.ment ,( to 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 area avqu9md+vd ob),9.yhof 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 a servi )b 1l(jiiu d.qjw pbp)ka:42bce station is 4.0 m long and 0.20 m in diameter. Youngluq)14()bp2ba : d.ijp w kjib'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:    
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
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A wire of diameter 0.20 s n(d6i1 *zogrmm stretches by 0.20% when a 6.28-N force is applied. What gros1 (6ndiz* is the elastic modulus of the 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
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 of diameter 1*b 3h5v hv+ky/reg4c q.0 mm and length 11.2 m. How much will the b k g5v+3qhyv 4/ecrh*wire 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 walking oj0a;a+x3 tq *lihz w)l k.1qcln crutches supports all his weight on the two crutch tips, each of which is circular with a diameter of 4.zhlaq1jl3a+ ); .ix q0cktlw* 0 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 of7dw+u*(z nu fc $1.250 \; m^{2}$. 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 mv58 pcldaz pl,h953-b r puvyx54rfb . in length and 2.0 mm in diameter supports a 10.0-kg mass. What is the streslp zb hlcxr35d5pabv9y-,v5r. fu 48ps in the wire? (The Young's modulus for aluminum 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 wh.oqkj(e3n4:i hg7ldq q 8 6o2.0 mm in diameter supports a 10.0-kg mass. What is the elongation of the wire? (The Young's modulus for an alum3g( 6h4q 7:8kiq nohwoe.j lqdinum is $7.0 \times 10^{10} \; N/m^2$)

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
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 aluminus5q);up3ji.y ewxk q-m cube with sides of 30 cm. What is the result j)u;kyq3pws.ei5qx- ing relative displacement? (The shear modulus for 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/amxng6 l6mt ) atmospheres/6ntxmm6agl ) (to about $10^7 \; N/m^2$). 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 diame64j9 y+ bauqrqter of 30 cm. The compressive strength of steel is6y+jb4auq 9 rq $250 \times 10^6 \; N/m^2$. 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|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

    GMT+8, 2025-4-19 08:23 , Processed in 0.270040 second(s), 110 queries , Redis On.