51fly国际课程 (51fly.win)

 找回密码
 立即注册

手机扫一扫,访问本页面

 

      

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 Unit11: Vibrations and Waves

 作者: physics 发布日期: 2022-08-06 21:32   总分: 99分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月06日 21:32  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  
  The time for one cycle of a periodilxkkbzi2)c23g 7x3 mlc process is called the

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  
  For a periodic process, the number of cycles per unit time is called thl:lbs nc- ck28e

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  
  For vibrational motioik8h ;qb6tmx6n, the maximum displacement from the equilibrium point is calmb;6 6 hqx8kitled the

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 mass on a spring under g xr 6/wvqi(t.:s yc3kxf3ik,goes SHM. When the mass is at its maximum displacement from equilibrium, its instantanqi(.sykcfi w3 :xxkr6g /t3 v,eous velocity

参考答案:    

标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring unaux xyupdj9.9 67 0jrxdergoes SHM. When the mass passes through the equilibrium position, its instantaneous vp j. ad xujuxy679xr09elocity

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 mass on a spring undergoes SHM. When the mass is at .vsmf 9c72v b8q1viyumaximum displacement from equilibrium,i.ufbv28 v1s7q y cmv9 its instantaneous acceleration

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 mass is attached to a verticyp k) 9di/vg+wzz y*g9:n.hi.1 p nvct9zv 8okal spring and bobs up and down between points A and B. Where is the mass located when its khkcv nyyioz n: kvw9v9)9/i zzt gg+*d..p81pinetic energy is a minimum?

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 mass is attached to a vertical spring and bobs up and down between points A an)mgkh/1 nd q6k6nl ( 8ovw;zmgwgnhk6d 8qnlk6)(1mz/ mogv; d B. Where is the mass located when its kinetic energy is a maximum?

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 mass is attached to a vertical spring and bobs up andy2h4b- t;os7wx7ikbn down between points A and B. Where is the mass located when i-t4ihxyb7nw s ; ok7b2ts potential energy is a minimum?

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  
  A mass is attached to a vertical sprio*nj aevply;:f7 r *l2ng and bobs up and down between points A and B. Wher yvo2arn:* *7elfp; lje is the mass located when its potential energy is a maximum?

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  
  Doubling only the amplitude of a vi50 6ugw4)x:x1gscevexnz e y4brating mass-and-spring system produces what effect on the syste0wxu:6v g5e 4ceyx xez)14gnsm's mechanical energy?

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  
  Doubling only the mass of as ncmip:lx y177)zjl6 vibrating mass-and-spring system produces what effect on the system's mechanic67ll:7i snyx1 z)pcm jal energy?

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  
  Doubling only the spring constant of a vibrating mas:*f9ihjmh : tks-and-spring system produces what effect on the system's mechanical energ :*fmhhj9i:k ty?

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 oscillates on the end of a spring, both on Earth and ovk6y (soqwgy 4-5lcbft36 ta0 n the Moon. Where yt5qbcya-0t l of3(4vws66 gk is the period the greatest?

参考答案:    

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the spring constant k of a mass-and-spring r6h .7mm (b)bbcs5 vi mi)m.kvom 7w(xsystem causes what kind of change in the resonant frequency of the system? (Assume no change (67c(vsi 5b.h mrwmkb b )m7vi )x.momin the system's mass m.)

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  
  Increasing the mass M of a mass-and-spring system causes wha.:a,ev i+ hivut kind of change in the resonant frequency of the system? (Assume n .vh,v ii:+uaeo change in the system's spring constant k.)

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  
  Increasing the amplitude of a mass-and-spring system causes what vl3hrutlz mj/*soex 24e-j.(d)c/r6fsd2 j j kind of change in the resonant frequency of the system? (Assume no other changes in th(j f*2u3 h2d/jzmosre 4.ex)r6jvtl jcl-ds /e system.)

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 mass $m$ hanging on a spring has a natural frequency f. If the mass is increased to $4m$, what is the new natural frequency?

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 simple pendulum consists of a mass M sry t::sc0,wiattached to a weightless string of length L. For this system, when undergoing small oscci 0s:trw:s ,yillations

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  
  When the mass of a simple pendulum is tripled, the time required forzr+t slo6lqqa6e/j0 ky t 4(:v one complete vittzlvaesyj6q 6 /+ k0o(r4ql :bration

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  
  Both pendulum A and B are 3.0 t* p/fm;1fiwc:u-g5 ,xovjudm long. The period of A is T. Pendulum A is twice as heavy as pendulucotg;,/mf*fujv: -1 dwxu5pim B. What is the period of B?

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  
  When the length of a simple pendulum is tripled, the time for one com8*s8-eibx4l fjd ) jkuplete vibration inc dks88 l)buijx 4ej-*freases by a factor of

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  
  What happens to a simpl m)dgvxw b.*mhgc(9 k; xi+,bie pendulum's frequency if both its length and mass are increas,ih*mb dk(xmv x+.9;cgi) gb wed?

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  
  Simple pendulum A swings back and forth at twice the freque. 82cobk.lc-*b grf tdncy of simple pendulum B. Which statement is corcf*tldg.c .28k bb-r orect?

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  
  If you take a given pendulum to the Moon,0q ct8p6.ezi 0eie.9 /yu c 1i2fvqogr where the acceleration of gravity is less than on Earth, the resonant frequency of the p eq0e28 t9yqip1i .zi.cv6orecuf0/ gendulum will

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  
  Curve A in Fig. 11-1 st9a3jes,q 9 l0o8yoarepresents


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  
  Curve B in Fig. 11-1 represey-fx d1:vq ;a whybl1mjj 0r*x(n7cd8nts


本题所包含的其它图片:

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  
  Curve C in Fig. 11-1 represents6d8n0y *eije k5ok9dg7l( ahp


本题所包含的其它图片:

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  
  For a forced vibration, the amplitude of vibration is found to depend on tha;tpo c)m,pq/*h6 ai.bn fb0le

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  
  In a wave, the maximum displacement of pohnv orw7 *z7,nints of the wave from equilibrium is called the wzo77vnn,*wr h ave's

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  
  The distance between successive crests on a w;jqyt4;m g+xa pt k5p;ave is called the wave's

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 number of crests of a wave passing a poin 3n01 9 ywwe4ewa62 vqn2sotxht per unit time is called the wave's02nawwvxe 4t 3hwsy9 1o6qe 2n

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  
  For a wave, the frequency times t a ow/p ophhepd65: 36f.bd.iihe wavelength is the wave's

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  
  The frequency of a wave increases. What happens to the distaga(grzv./f.b nce between successive crests if the speed r(gg v..raf/bzemains constant?

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 wave moves on a string with wavelec (e,r q m3e1-.ui8uphlor: dkngth l and frequency f. A second wave on the same string has wavelength 2l and travels with the same velocity. What is the fr com.8e (,3rl:r 1e-ipkhq duuequency of the second wave?

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  
  Consider a traveling wave on a string of length L, mass M, and ten9atbfbbzhi, 9 y,0oswgcz az :t*w-2 kfiw826sion T. A standing wave is set up. Which of the following is truebk 9bgz, caob*wsyhf-i06wt,: f9 a z2i8tw2z?

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 string of mass m and length L i v:0jn9b9e fnd-+ mfdms under tension T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the mass of the string is increased to 2m, with no change in lengt9nfdme9 + j-nvb: fm0dh?

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  
  A string of mass m and length L is under tension T. The speeoezz .4jynzw3al4*ttcvclmu1 n1 )2- d of a wave in the string is v. What will be the speed of a wave in the string if the length is increased to 2L, with no change )lz4menyn1ow z zcjcl1tu*2t a.-v34in mass?

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 string of mass m anddgf*7+ sa +2ol 3ilqp2syh io) length L is under tension T. The speed of a wave in the string is v. What will bei)sa o2y * ps3lgil+hodf72q+ the speed of a wave in the string if the tension is increased to 2T?

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  
  In seismology, the S wkxrt59o*j e m,ave is a transverse wave. As an S wave travels through the Earth, the relative motion between the S wao e trx*5kj9,mve and the particles is

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  
  In seismology, the P wa7xu r8bwv1y -tve is a longitudinal wave. As a P wave travels through the Earth, tb81vtx r-yu w7he relative motion between the P wave and the particles is

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  
  The intensity of a wave ,zx4:mut hq1wsfr;t6rt bc24is

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  
  A wave pulse traveling to the right along a thin cpuex7,,)nc 0amihe mxom+ 67 gord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and transmitg67 ) pu+m0x m,eah7xemc, nioted pulses?

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  
  Two wave pulses with equal positive amplitudes pass each other on a str xu;cy6r,cu)o ktybc d(r-o56ing, one is traveling toward the right and the other toward the left u5bd-okcr)y c; xocr(y,66ut. At the point that they occupy the same region of space at the same time

参考答案:    

标记此题
45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two wave pulses pass eachc 1ka,/7b dx z0;uymtp other on a string. The one traveling toward the rightbu/ tc0,dm1;py7k z ax has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negative direction. At the point that they occupy the same region of space at the same time

参考答案:    

标记此题
46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Resonance in a system, such as a string fixed at both ends, occursgb,soz1f*m *nx.g,gd q1 7tby when

参考答案:    

标记此题
47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If one doubles the tensiodg 54;6 u( d;.eqyg6zzugee kxn in a violin string, the fundamental frequency of that string will in6;5eg(6zxey.udk zd g4 g;equ crease by a factor of

参考答案:    

标记此题
48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the spring constant of a spring that streti b80:lhzfa1gv 2/ df2ta2ar w1jl)w qches 2.00 cm when a mass of 0.600 kg is suspended from it? 2w1g r1f wlhqv/a0t2:fd8 ajlza)bi 2

参考答案:    

标记此题
49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constant 60 N/m ys 7tepltt lg 2+z+,1n*hz7qkalong a horizontal, friction z+ *pelklt gn,+tzsh7qy t271less surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the amplitude?

参考答案:    

标记此题
50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached tod terwki.* 3,e-ui ghth d1,l7b* e/go a spring of spring constant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the pgu7t-, *btk *, ei.gowl3/ 1dirheed heriod of oscillation?

参考答案:    

标记此题
51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constant 60 N/m along a, (4v1mk+:x fqqeposi)cf gn: horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the frequene(q c4 x)f 1k,qsg vp:om+:ifncy of oscillation?

参考答案:    

标记此题
52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. It goes through 10 complet+ smxh6gp;o:q e oscillations in 5.0 s. What is the per;xqp m: 6+sohgiod?

参考答案:    

标记此题
53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth from the free end of an ideal spring of sprin,lugz.xc* x. em:d6 lag constant 20 N/m with an amplitu.l*acx x6,edz.mg u: lde of 0.30 m. What is the kinetic energy of this vibrating mass when it is 0.30 m from its equilibrium position?

参考答案:    

标记此题
54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attache -h-r0t 086zpd7arwoah yv3x t63igved to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrirg8vwrh-d-o6 i3ez0 tx3p7 y6ah0tv aum position. What is the total energy of the system?

参考答案:    

标记此题
55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass undergoes SHM with amplitu8yv3x0mm4 ogkwf5p3vd dp) 1cde of 4 cm. The energy is 8.0 J at this time. The mass is cut in half, and the system is again set in motion with amplitude 4.0 cm. What is the energy of the system nowk m8 w4pdm 0v35vdf3cgpx)1yo ?

参考答案:    

标记此题
56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a spring of spring constant 20 stdm qil9ymwi ( m:-/ x:r5u;bN/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium pw;mqmtsd-miy(9 /:biu5lrx: osition. What is the amplitude of vibration?

参考答案:    

标记此题
57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a springmanqxxpii m y,l,//2m bfd51. of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. At what location are the kinetic energy and the potenafbq,,5xmy/ x i/ lp.dmm i1n2tial energy the same?

参考答案:    

标记此题
58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached to the end of a horizontal spring of spvo ,abmnf-x. -ring constant 50 N/m and set-.vo fm- axbn, into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical energy of this system?

参考答案:    

标记此题
59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached to the end of a horizontal spring of spring const+lm-jls, wb0n ant 50 N/m and set into simple harmonlwnj s- b0lm,+ic motion with an amplitude of 0.10 m. What is the total mechanical energy of this system?

参考答案:    

标记此题
60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth linq2axwekk. 3 vkvqf3ormuo 7a+()4x,06 gwfrom the free end of an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kinetic energy of this vi(x64oq,goiavkeuqv3r273n k x mlaww )k.+f 0brating mass?

参考答案:    

标记此题
61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of a mass-and-spring system is displacedv6 ya* fx24a mw/v je3fyf*qo1 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. Whfmxw3 * 6yvjfyo1/eq42a*vaf at frequency would be observed if the mass had been displaced only 5.0 cm and then released?

参考答案:    

标记此题
62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached to a spring of spring constantp vkdsn r73z+; 10 N/m. The object is dispp+vzd7r3skn ;laced by
5.1 cm from the equilibrium position and let go. What is the period of vibration?

参考答案:    

标记此题
63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached to a spring of spring constawg)ozaay4t8a 9z8.jsc -to i2*y vsf:nt 10 N/m. The object is dis 2 zv8s*ao:f.4ct9ja)oy-s tw iy8g azplaced by
5.1 cm from the equilibrium position and let go. What is the frequency of vibration?

参考答案:    

标记此题
64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is hung from a sprij9nk m29-jpf tng of spring constant 18 N/m, displaced slightly from its e nt-92k jmf9jpquilibrium position, and released. What is the frequency of its vibration?

参考答案:    

标记此题
65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring. It oscillates at a frequency of 1.27 Hz s :p 6lc*0 uq,fzntg( 9jzm6dwwhen displaced a distance of 2.0 cm from equilibrium and relefjszmq(dc,90 6z tun*6gwp l:ased. What is the maximum velocity attained by the mass?

参考答案:    

标记此题
66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two masses, A and B, are attached to d*l t )pn44ycybifferent springs. Mass A vibrates with amplitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5.0 cm at a frequency of 16 Hz. How does t) c nyptbl4*4yhe maximum speed of A compare to the maximum speed of B?

参考答案:    

标记此题
67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibrium vht 9;9 pur+xka :*jesthe mass stretches the spring 2.0 cm downward. The mass is then pulled an addxs9:* +ev;uaktr hp9 jitional distance of 1.0 cm down and released from rest. Calculate the period of oscillation.

参考答案:    

标记此题
68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a gaou s gi6-ssms+cyx29 9t5q +z(s (ecspring. In equilibrium the mass stretches the spring 2.0 cm downwa(x msa2+ se9z(ig+9 o5q6gyss- c utscrd. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the total energy of the system.

参考答案:    

标记此题
69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibrium the masl4tx01k/fhal- jc5zjg ax3 l 2s stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest./l acx10l-xj 2g4 th3afzljk5 Write down its equation of motion.

参考答案:    

标记此题
70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motion obeys theki-w*t8ya hg2 following position versus time equatig8ht*ak- wiy2on:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the amplitude of vibration?

参考答案:    

标记此题
71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motion obeys the follohorvm 8ra;( - fhgu*o1wing position versus time equau ma(*v h-gorf h81or;tion:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the period of vibration?

参考答案:    

标记此题
72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motios)+im rbmz55rn obeys the following position versus time equatii) sm 5br+zrm5on:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the maximum speed of the object?

参考答案:    

标记此题
73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass attached to the free end of a spring execut hsuzcz(g13fz3 cn0o .es simple harmonic motion according to thf30 g z1conuhzc(3sz .e equation $y = 0.50 \; \sin (18\pi \times t)$ where y is in meters and t is seconds. What is the period of vibration?

参考答案:    

标记此题
74#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A 1.5-kg mass attached to spring with a force constant of 20.0 N/m oscillates oneht1z ng u99p: a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 cm. tp 9z:ehnug19(That is, the spring is stretched by 10.00 cm.)
(a) Determine the frequency of the oscillations.
(b) Determine the maximum speed of the mass. Where does the maximum speed occur?
(c) Determine the maximum acceleration of the mass. Where does the maximum acceleration occur?
(d) Determine the total energy of the oscillating system.
(e) Express the displacement as a function of time.
参考答案:    

标记此题
75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum makes 12 cog :bj( 6rmhw35uxq*fumkt28r mplete swings in 8.0 s. (a) What are its frequency and pehqut*f( xr 8mbk52u jr 6gw3m:riod on Earth?

参考答案:    

标记此题
76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.00-kg pendulum is 28.84 m lo -sr2r.bykwi8 3rjtd9 ng. What is its period on Earth?

参考答案:    

标记此题
77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum has a periodeii(;026 v7iqcga, fih:// mb tyyocw of 2.0 s on Earth. What is its length?

参考答案:    

标记此题
78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clockpm xl-, (ihu;u is 1.0 m long. What is its period on the Eapl muu(x ;,ih-rth?

参考答案:    

标记此题
79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock is 1.0 m lonmgxalg80f ) 2onjvi.+dk g2 2kg. What is its period on the Moon where the acceleration due to gravim2nvi8o a.dgk)g2 fj +2g0klx ty is only $1.7 \; m/s^2$?

参考答案:    

标记此题
80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consists of a 0.27q(hfs7hk;+( 0ksjaod bzv;v5-kg spherical mass attached to a massless string. When the mass is displaced slightly from its equilibrium position and released, the pendua ko v7 +s(0h; kzsvbq7djh(;flum swings back and forth with a frequency of 2.0 Hz. What frequency would have resulted if a 0.50-kg mass (same diameter sphere) had been attached to the string instead?

参考答案:    

标记此题
81#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A simple pendulum consisting of a 20-g mass has initial a9 +n 3()ato b wwrupnha+4cd)wngular displacement of 8.0e. It oscillates with a period of cahrba)w 9u3n )n o(4dt+wpw+ 3.00 s.
(a) Determine the length of the pendulum.
(b) Does the period of the pendulum depend on the initial angular displacement?
(c) Does the period of the pendulum depend on the mass of the pendulum?
(d) Does the period of the pendulum depend on the length of the pendulum?
(e) Does the period of the pendulum depend on the acceleration due to gravity?
参考答案:    

标记此题
82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapvnv *k:6, daboshot" of a wave at a given time. The frequency of the wave is 120 H n,:obv*vdka 6z. What is the amplitude?


参考答案:    

标记此题
83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. The frequencyz;5ajzjem 9h9s 0y6 yi of the wave is 120 Hz. What is the wav90h;9i5zsjzjy a 6yemelength?


本题所包含的其它图片:

参考答案:    

标记此题
84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapsh,phjf ) (jem9 9fc;nydot" of a wave at a given time. The frequency of the wave is 120 ch (9 fjj,)dfnp;e9my Hz. What is the wave speed?


本题所包含的其它图片:

参考答案:    

标记此题
85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency of a wave which has -iuxus67q 94+uk ls 3,r zmjtua period of 6.00 ms?

参考答案:    

标记此题
86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the period of a wave 6jj t,9m7 bzpx:u:ppowith a frequency of 1500 Hz?

参考答案:    

标记此题
87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wave speed if a wave has a frequency of 12 Hz and a waveleng+6g8kq hcguwux/ )s s7ues614r3g z eoth of 3.08e16swkc3zeous+g g 6sr7 )xg/u4huq m?

参考答案:    

标记此题
88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the velocity of agjw)hp go.96b wave that has a wavelength of 3.0 m and a frequency of b 6).og hwpjg912 Hz?

参考答案:    

标记此题
89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency of a 2.5 m wave traveling at 1 sub0.*d m+l,uv/ (lparwjyg7400 m/s?

参考答案:    

标记此题
90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A piano string of linear mass density 0.0050 kg/m is under a tension of 1350 N.be. v.wturgq 2n ;r.vons l75* aue;q. What is. ;vbq*e2v;l7 usto5.graunqw.nre. the wave speed?

参考答案:    

标记此题
91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of linear density 6.0dw j meqkcac/n,,z-e9a 12 3fr g/m is under a tension of 180 N. What is the velocity of propagation of transverse waves along the st/,zae3mna, jwf9e k-d2c qr1 cring?

参考答案:    

标记此题
92#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A wave whose wavelength is 0.500 m is traveling downc, o.xo4tpd;7wo mrf0ape-5 e a 500 m long wire whose total maso wc pp70oae4.e-, xmdtr;f5os is
25.0 kg. The wire is under a tension of 2000 N.
(a) Determine the velocity of the wave on the wire.
(b) Determine the frequency of this wave.
参考答案:    

标记此题
93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The velocity of propagation of a transverse wave onc8bl;cd1g l 4:-4 q-fy vz xk:ic:7jrwjc:gtk a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a resonant frei j1 ygv7f rkl-cl g4;dt8cw:q b:4kzj:cxc-:quency of this string?

参考答案:    

标记此题
94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a guitar string has a fundamental frequency of 500 Hz, whic5gtj* 2yah 9 g oidfstnc*cfk z55*ww6b1l7k;h one of the following frequencies can set the5kt;9 kjb6fw ghzatc o2w5cns5d* *i*g l f7y1 string into resonant vibration?

参考答案:    

标记此题
95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A stretched string is observed to have four equal segments in a standing wa2 dj(rwec5(c wve driven at a52 wwcje(rd (c frequency of 480 Hz. What driving frequency will set up a standing wave with five equal segments?

参考答案:    

标记此题
96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string, fixed at both(s6.wo ttxr 2whxqt9+ ends, vibrates at a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the standing wave p x9rw( w.2hsoqt t+6txattern is to contain 4 loops?

参考答案:    

标记此题
97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of linear density 1.5 g/m is under a tension of 20 N. Wv)29:)vwyh0/clgkm 0 nbz1e)hgdyf hhat should its length be if its fundamental resonabvh1ykh v02f /9hyd)z e) :g)w0nmcgl nce frequency is 220 Hz?

参考答案:    

标记此题
98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Find the first three harmonics of a stringh7ls tnb e+z,;t9i.ml) rf.yk f5uzg 8 of linear mass density 2.00 g/m and length 0.600 m when it is s9zr l iz.t.uf lbkg mf85hn;)s+t,7ye ubjected to tension of 50.0 N.

参考答案:    

标记此题
99#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A string of length 2.5 m is fixed at both ends. When the string vibrate*b*vdrkznp uf l16ia 6,+vl jy4: k:pqs at a frequencfqkpubz i6:vdv*4pna 6k*+: ,rlly1j y of 85 Hz, a standing wave with five loops is formed.
(a) Determine the distance between two adjacent nodes.
(b) Determine the wavelength of the waves that travel on the string.
(c) Determine the velocity of waves.
(d) Determine the fundamental frequency of this string.
参考答案:    

总分:99分 及格:59.4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 99 道题
本平台(https://autoconfig.51fly.win/)支持练习,作业与考试(自动评分)三种模式,群组成绩统计排序导出,题目动态变量实现同卷千人千题
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

浏览记录|手机版视频|手机版试卷|使用帮助|51fly国际课程 (https://51fly.win)

GMT+8, 2026-4-17 07:06 , Processed in 0.532563 second(s), 228 queries , Redis On.