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 periodic process is called th8+cwxf,(* :eii rp hxxe

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 (j5e4jq* yx 3voav zj6per unit time is called the

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 motion, the maximum di6knc975*n6w mh* zzx y 8bvjjtsplacement from the equilibrium point is cy5j9* wk 6zjm7zbxt nh* n6v8called 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 undergoes SHM. When the mass is at its maxisr-j * hkwlbk1w;4g7j mum displacement fromwk*; 1jw4 7lhrkgb- sj equilibrium, its instantaneous 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 undergoes SHM. When the mass passes t k63vom9 j6nna6lk tg6hrough the equilibrium m j9onag6tn l6k36kv6position, its instantaneous velocity

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 a ,xiy (f:de3stt maximum displacement from equilibrium, its instantaxie:d3 f(,tsy neous 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 4dfg*tu7f yoij+p az :qrh73:vertical spring and bobs up and down between points A and B. Where is the f7 z+pihjdougrty:7a4*3:q fmass located when its kinetic 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 uddek- *ili4w:q 0mtz(p and down between points A and B. Wheredliqt(zk0 4iwe :-m d* 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 uag;1,iz8 zogup and down between points A and B. Where i,gzz8 o1iua g;s the mass located when its 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 skoz ro8w4d2fm/m:b ba )qsz0j/.n ux( pring and bobs up and down between points A and B. Where is the mass located when its potential energy is a maxi:aqf rmu. bb/d)xn428 o/(szkjzw0mo mum?

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 vibrating mass-and-spring bq,u4q0x9jocc8lk l*mhf/ ( s system produces what effect b j0xcmlscu/k *4h,l9qoq(8f on the system'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 a vibrating mass-and-spring system produces w k ngr)y6wnrd4(x;7bbhat effect on b74;nbgyx 6knw( r) rdthe system's mechanical 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 mass-and-spring systjpp+ h)v6b /li)e/ rzvem produces what effect on the system's mec6h/bpjipr z +)v)/evl hanical energy?

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 sp dod/;dm07yif ring, both on Earth and on the Moon. Where is the period the greate/dd7;y0 domfist?

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 system causes wha;/p8fybcq8 3h ea1g tut kind of change in the resonant frequency of the system? (Assume3feqaph gc u;8b18yt/ no change in 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 n:kcwc kqe0: u-d6jp .l:rbo3 of a mass-and-spring system causes what kind of change in the resonant frequency of t r:uqk.:bkw coj:63lden0p -che system? (Assume no 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 osj(c h +e0a0zaf a mass-and-spring system causes what kind of change in the resonant frequency of ah(j00szac +e the system? (Assume no other changes in the 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 attr q*2 btx)r7 zzgl9li4ached to a weightless string of length L. For this system, when rrbi47g* t2zzqll)9 x undergoing small oscillations

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 for oynam d7j1 fjq+-(s+gd/ phpc. ne complete viby7.( h-/ jpqfnj1 +g+damps dcration

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 m long. The period of A is T. Pendulu 652ol(efgbz um A is twice as heavy as pendulum B. Whl5zfe(2 6ogu bat 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 triplewq 2 nimk/dr;e n )vqdj(x/5 rjeku38*d, the time for one complete vibration increases by a factor ofq/uvj*ekkd;nn d m (rq /exwr)j38i52

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 simple pendulum's frequencdx++*q ye,nmd 4wkkpy7ebp 2.c2xr.uy if both its length and mass are increased?kc rew2y.4xe7dpx ,+pdu*bm .2n+qky

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 frequency of siml lj: :lk-/8ds6iur 4ch6jjirple pendulum B. Whichr -jjkl:/s l 4cli j8:i6du6rh statement is correct?

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, where the p8(jq3ajr3-y2kpamf acceleration of gravity is less than onk-33arp q8f(ym j2 ajp Earth, the resonant frequency of the pendulum 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 q:chrxluz/(77 c b-n udn c22rrepresents


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 represen pbido5j621qmts


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. 11-1hi4 9ea lup)iiua 6-9l represents


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 *m5y,jm4i.c fdmp-rpmw*3h8 tzcot 1depend on the

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 oe 6i*25dgurl.pt k/jvw62 zad f points of the wave from equilibrium is called p2.wd r6atg/vu6ej2 izk* l5 dthe wave'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 wave is /r2n-i/uemd ccalled 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 point per unwnf *;+n94iatm3pfq3yv 9ou yit time is called the wave';y o3i fwnm+upt 9vn93f*y4 aqs

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 the wavelength i(rt8g -bm ytg/, d(jzys 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 increasybs)(6;qdm rzes. What happens to the distance between successive crests if the speed 6s m(zqdbry ;)remains 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 withvinpf+6)7v,smxkikw , voi8 + wavelength l and frequency f. A second wave on the same string has wavelength 2l and travels with the same velocity. What is the frequency of the se),v7 fm,+inko 8+vswpx6v iik cond 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 string8la 3gu g(,wfe of length L, mass M, and tension T. A standing wave ig3(8uafe,w g ls set up. Which of the following is true?

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 is under tension T. The speed of a wav.li c1pt7 squ7e in the string is v. What will be the speed of a wave in the string if thi l7s.uq1t7 cpe mass of the string is increased to 2m, with no change in length?

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 speed of a wak90 l:l lo+(opuoj 7vcve in the string is v. What will be the speed of a wave in the strino7j co9ul( p0lo+vk:l g if the length is increased to 2L, with no change in 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 and length L is under tension T. The speed of a wave in t 6rm4m+t:p nxuhe string is v. What will be upx+:nt 64mrmthe 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 wave is a transverse wave. As ,amb ymm;o9s 1vqe c(5an S wave travels through the Earth, the relative motion between the S wave an mao,;bcye1 9( mm5vqsd 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 wave is a longitudinal wave. As a P wave travels througu m:67x;ys liah the Earth, the relatixs u7i6mayl;: ve 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 waq6f+ a3v; mqsv9zxa*8c4ja fp ve is

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 cord reaches a discontinui z1sa,iaz2 32tyzue7y ty where the rope becomes thicker and heavier. What is the orientation of the reflected and transmitted pue z2,7zs2 z1i3auatyylses?

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 strin)wbtpxq i,z; 0jm8j.l5: b x,rm0wnjwg, one is tb 8:,p wri;5 w lq,wbt)0mnxj0 .mzjxjraveling toward the right and the other toward the left. 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 each other on a string. The one d1ac,mxf-t t2traveling toward the right has a positive amplitude, while the one traveling toward tht-2 x,1 acmtfde 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 systemasi* 6e7gqx g8hlh0 g8, such as a string fixed at both ends, occurs 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 tension in a violin string, the fundamental frequency of xm7qa;w*8g, aih8 jce that string will incm7w8q*c;axg,e 8 jaihrease 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 stretches jm v 0y2is22p)sicz. e2.00 cm when a mass of 0.600 kg is susps i.v2 0pmjzeyi)sc22 ended from it?

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 constay9qqe*udfh.0 ue1pk 3nt 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.du.1 3eq*ykh0efu pq90 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 to a spring of spring constant 60 N/m along a horizonh,ejih+f1yo8 6yb kq, tal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go.18 y k,o+fj eihbq6hy, It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the period 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 hori7j )sgl3*yf lc:usxz-g hu.j3zontal, 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 iylcu jz glf)uh7g*:xsj 3-s.3ts equilibrium position when it is oscillating. What is the frequency 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 o,5cr g-qhb i:t(kf zq0ou93wcomplete oscillations in 5.0 s. What is - 3t5wo9obg uhq(cq i:,zk rf0the period?

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 spring b gnz1o m*ucl 2cjg 29rrd.:q/constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of this vibrating mass when it is 0.30 m from its equilibrid2: 1zucb/n gqo 9 rrjmg.cl*2um 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 attached to a spring ofb cjem6k.k7qw4;4gdr 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. r dwc 6ej4;7kk b.q4mgWhat 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 amplitude of 4 cm. The energy is 8.uoodkl:gz:- 4 g6h qm80 J at this time. Thglmg:hk:d4qu o8o6 z-e 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 now?

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 (c:e a,zgzssw(n.g el4;, ei- nup,jmusx6+o20 N/m along a horizontal, frictionlecisgj-:uxsng zp ,z,. ,w s e4mne (e6lau(;o+ss surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. 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 spring oxeqh2: 9li4ytvg46 p)z bd.j hf 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 equilibhzpq4tvh9 4b ):6gi lx.dyej2rium position. At what location are the kinetic energy and the potential 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 attachedc 6v4s9db8.ht szs:ey to the end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 z.yt: e 9svds hcb8s64m. 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 attachen;bnzcjma4* vo5 v+ t :dprr5:d to the end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical np oza*t:+55 jbdr;m rcnv4v: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 from the free end of an ideal spring of unh;z z.0t ea pt)l)i,spring constant 20.0 N/m with an amplitude of 0.250 ),z0tn e).plhiauzt ; m. What is the maximum kinetic energy of this vibrating 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 di5 9v.7,zyayr y /wlj+xnxpvc4 splaced 10 cm from its equilibrium position and released. A vv, /7j z+l5xyypryn9.c w x4afrequency of 4.0 Hz is observed. What 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 constant 10 N/m. The obje-/nr7jyl6ie; qwt f0d js68 oect ien0odi6 e-s8twjly f;rj6/q7 s displaced 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 constazher+j1;o o (ant 10 N/m. The object is dispa+oz;1ejo( hrlaced 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 spring of spctqi4go*p,ib0w3b ) vring constant 18 N/m, displaced slightly from0 c4igb piwqot *),v3b its equilibrium 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 Hzkn(z s/*o+2qepv sxs* when displaced a distance of 2.0 cm from equilibrium and released. *+n (kqs2sx/e *spz ovWhat 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 different springs. Mass A vibr b3 .oc:fw;iead(5m j mnxk3(wates with amplitude of 8.0 cm at a frequency of 10 Hz anmn5b jwd((f;xe:.cmw kia3 o 3d mass B vibrates with amplitude of 5.0 cm at a frequency of 16 Hz. How does the 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.1,y tkcex +/zi In equilibrium the mass stretches the spring ytzec,+/ ix k12.0 cm downward. The mass is then pulled an additional 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 spring. In equim(; .2nkosp22k lpjry-sd/sxlibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance o 2; ld(srm p/spj. oy2sk-k2nxf 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 th 6yt+a,ou .zrvl 8j +4d92ohpdqgkq8pe mass stretches the spring 2dqz ajq8hd89t2 p,. o+ulr64+gvko py .0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. 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 the following position versus time equ 5)j : hfcdv1oegtx)q;3egc kx*5+tt wation:*jek 5h) xtod+3wtfg15x ;vtc)c geq :
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 os,/sc,h-visy03: tn*u h jnsibeys the following position versus time equation: jsih ys,/0c usvt:,is3nh-* n
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 motion obeys the followil:*/p* kkd7j wtlms0m*f(ehqrjoi,9z;)be v ng position versus time equat/* rk: t7j eisb)mqjemz v,pd;owl(kl0f * 9*hion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 7mu0)f/awa 3ns i 3fpxexecutes simple harmonic motion according to thpaf)a7 0 wsnui/f3m3 xe 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 osci x2e p hpmt/mc:;e/bm*llates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 cm. (That is, the spring is stretched by x2cppbm:h m/ *te/e;m10.00 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 complete swhe67 t n.4lrb- uzenx1ings in 8.0 s. (a) What are its frequency and pet -z17xe e.rnhln4u6 briod 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 long. What is its / *lwozs; j(gcperiod 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 period of 2.0,k*a hpy 0vo(qt2q 5tw 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 clock is 1.0 m long. What is its period on t qe4xz0;k,gsjhe Eart 4s0gzje;,xqk h?

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 1.7l hqq83 9kbskw),kzr 7k5pvy 0 m long. What is its period on the Moon q9s87yzl5k),3k vqkbpkwrh7where the acceleration due to gravity 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 0.25-kg spherical mass attached to a massles nu*9, /pwjthu xfpi9,s string. When the mass is displaced slightly from its equilibrium position and relea*jf, xuhiwu99 tpp/n,sed, the pendulum 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 an2*89sy- 0c r/cri ejdnth *kgdgular displacement of 8.0e. It oscillates with c gddi9t/sek h0rj*c -nr*82ya period of 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 "snapshot" of a wave at a yrb:pcb. 3;;dhv azhsk95ze (given time. The frequency of the wave is 120 z 3dkhb;b(szy ah;59v.:e prcHz. 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"hi w,au rj:+jf *u/own*s +qd6 of a wave at a given time. The frequency of the wave iwu:ai,hj wro+u *+*6qnjs/d f s 120 Hz. What is the wavelength?


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 "snapshot" of a wave at a given time. w : yx.gd,.m.zn mxr qlp5g03nThe frequency of the wave isrgxqyn,l. mgp 5w:dn3 m..0xz 120 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 a9gqxqfj,g8f:jl. /nx wave which has a 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 with a frequencyq9 ipkp sl8go( (an*o9 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 yk(2dpph8 fh1 6ebzx; Hz and a wavelength of 3.0 8efby2z6 p;d x(1khp hm?

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 velocity1)zwdt ,h-lmakzm8k b* fd 5o0 of a wave that has a wavelength of 3.0 m and a frequency ofmlo fzd8d bw)hkaz1mk-t*0 5, 12 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 a28jgi9tvdyoc0au; m r ew (3;mt 1400 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 maec z.0z0djw5jagsi*kt n t(l(k3) 9wo ss density 0.0050 kg/m is under a tension of 1350 N. What is thekwdz 3 a*gn ijkt (jlsz0 oc9.5te0w)( 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 6.0 g/m is under a tension of 180 N. What is the gnq1 bytvv (b ts1kv g3o ,91vs(t5:vavelocity of propagation of transverse:3ot1(vsg (ya s9 bvt5vn11bqv,k v gt waves along the string?

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 traykw9 bkdu n+29veling down a 500 m long wire whose totayw 9n92ud+k kbl mass 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 propagatif*qdcqf- *oh mpl+ 3u2on of a transverse wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is nou+qd23 -f hfqcmpol **t a resonant frequency 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 h*okbk0ll0 i ;has a fundamental frequency of 500 Hz, which one of the followi0;*oki0lhlb kng frequencies can set the 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 toz.cel(xg oz;ks))* fo have four equal segments in a standing wave drivls* eo)fx)kgz c.;z(oen at a 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 ends, vibrates at a frequency of 12 Hz with a standiwh -hx5m1lbd, ng transverse wave pattern containing 3 loops. What frequency is needed if the sm5 h d1,bxlw-htanding wave pattern 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. What se; p+nl 5sphl3hould its length be if its fundamental resonanc lesl5 +3h;nppe 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 string of linear mass density 2.gvd,w z+w.(1xf9 xit h00 g/m and length 0.600 m when it is subjected to t+zw 1xdt wfxvh .(i9,gension 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 fixed1(h/ r9gcwp gw at both ends. When the string vibrates at a frequency of 85 Hz, a standing wave with five9c1hw p(g w/gr 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://mail.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, 2026-8-16 19:29 , Processed in 0.730151 second(s), 228 queries , Redis On.