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 p,; vcib i, maoe6g3q;oeriodic 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 calledf1jq1l 2 wgsjsy68b2bb.7n ap 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 displacement from the equilircim qu(7vwg5z6pto )k6s 83b brium point is calledzocqigv635k8r6p (ts )7 m uwb 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 xgp n7;g18yu:qry/b r maximum displacement from equilibrium, its instantaneous vg1rp ;u q8bgrn7xy /:yelocity

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. Wz6h-g6mal by hem.r 4-hen the mass passes through the equilibrium position, its instantaneous velocihma6zl. 4rbhygm- -e 6ty

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 maximum displacementq 30oa.chb lbiii j.11 from equilibrium, its instantanj3a1iolc bh .ii10.bq eous 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 vertical spring and bobs up and dow( nntnpow87kn/ u+b q1n between points A and B. Where is the mass located when its kinetic energy i(uwn 1n+ 8konpn7q/tbs 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 doqfj(.d n9(we qwn between points A and B. Where is the mass located when its kinetic energy i (fq nj9e.dwq(s 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 verticzva(ill.2j94qio e ,kdhk s9g0 1kjl 1al spring and bobs up and down between points A and B. Where is the mass located when its potential energy i.z k g ajkq v2i1del ,(1sl9k4ih9lj0os 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 spring and bobs up anv(:qns2o7 m yf5 p(klzhdo w 5m6h6wa4d down between points A and B. Where is the mass locatel na4((hovyz6q2f7m d5o6hp swwm: 5 kd 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 ofpy wj (z n4y9dls/5ge: a vibrating mass-and-spring system produces what effect on the system's mechanical energ g e (dzwjys:p5n4/l9yy?

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 5bqh+q+vw m4/kb:nok system produces what effect on the system's mecha bbq/k+wo qh: +5nmkv4nical 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 vibratinuoxga ;: g)bx*g mass-and-spring system produces what effect on th)g axb:o *;uxge system's mechanical 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 spring, bothd0zz)h wsavu2ic *s3+ on Earth and on the Moon. Where is the period thez s sz3*+0iwvc2u )had 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-ptcejrsn62l cy o/(7-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in the systemeojt7c /(c ylr-2sp6 n'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-xa3o4 +ny-upy5 0sc(8kwawwppn85r d spring system causes what kind of change in the resonan p3nw+x58wk a0y4p8wy apous r5c(n-dt frequency of the 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 amplitu,) aw ktntv:c;de of a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no other changes in thevat nc)w,:t ;k 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 attached to a weightless string of lengf1xp bb8/xa h4th L. For this system, when undergo/bab8 xpx14 hfing 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 one complet5h5l1 sr5aknxe vib hr5nx5ks1l5aration

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. *,elc1p d9af0usb6j tgjv/ ,n The period of A is T. Pendulum A is twice as heavy as pendulum B. What is t6j gs,v0lj9 ,anfdep/b*u c 1the 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 on2favsow- ))tt e complete vibration increases by a fv-2)a w fo)ttsactor 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 simple pendulum's frequency if both its lenf3wn15whd z07otpzk0i1 j3 rmfw(8tj gth and mass are increasew1rz3 0 w5(3fihpt joz twmn07j 1dfk8d?

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 frequency6 tcg9)v1bz( pud9p jw of simple pendulum B. Which stac91t 9pj)uvdg p zw6(btement 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 p fn i:7qmb. 1x-zjs)cyendulum to the Moon, where the acceleration of gravity is less than on Earth, the resonant frequency of the ysc1zj.n fmx7iqb :-)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 represe1t wsi :fd.m+ynts


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 repr7 +nmybpf r8(lesents


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. 11-10rq(gb(zt t*q 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 vibrati)yz 2w g/ev*hryn -o2kon is found to depend 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 of )mm3nl +a1,likpptx) points of the wave from equilibrium is catxpm +i3lm)an l)1pk,lled the 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 called the wave'snzpbo50f)rlg uz;hs; o/0 d 2v

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 wa*+yx )p9 hwcexve passing a point per unit time is called the wave'+wh*)9ex c pyxs

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 -qa8 h5 ;ovkchthe 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 qu5b3 ,iwdm x);qk8ev happens to the distance between successive crests if the speed remains constant? 5,38qm)ekvib xd qwu;

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 wavelength l and frequency f. A sr ) w00+03 /rxzpbaiemvbh*0p g6p6rq arxnx; econd wave on the same string has wavelength 2l and travels wn30z)pbhrxg* +a rirmp ;pxb var/0e60w 6q 0xith the same velocity. What is the frequency 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 leng+oi cz2gd51gbd; : yduth L, mass M, and tension T. A standing wave is set up. Which of the f+dd d5gz;b g2o:c1 uiyollowing 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 tensiont* bo9tn k1(xrp4khk 2 T. The speed of a wave in the string is v. What will be the speed of a wave in the string if okkb( npk t 42h9*x1trthe 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.t*k; v1 +zaiqcs9ibt jg(;k.r The speed of a wave in the string;qkj siav r*bt(+t.i ;gcz9k 1 is v. What will be the speed of a wave in the string 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 cjq yw+(g :4/k: 6tbnr y7ckrw7 1fdwsthe string is v. What will be the speed of a wave in the string if the tensit 7c6cr(jn+gr yk/wyd :qwwk71 :fsb4on 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 is4 yvp yw1y-j:yw+ vt;p a transverse wave. As an S wave travels through the Earth, the relatipy1wty-v4;p+w:jy vyve motion between the S wave 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 wave is a longitudinal wave. As a P wave travels throhz :rv v7;r0ogpix-9 lugh the Earth,-r xzo09hrpg; l viv:7 the 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 isl29bm /bx1n ej

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 reac.z+wr:3x lfoqg,a wf*pm ;da8 hes a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflx3 da,;8qfgm w+olf .zp*:rwaected and transmitted 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 positiv6q p mt:o/d hm9f-6jbee amplitudes pass each other on a string, one is traveling toward the right and the other toward the left. At the point that /-t:6hbfdm 6 pe joqm9they 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 ejg0t+j gcz(;q ach other on a string. The one traveling toward the right has a positivgqcj;( g0tj+ ze 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,i5i3 j jxq-zjsg8j/ou (61tpb 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 fundamental1r1gvqfhc7anzf +:l+;q mh l6 frequency of that string will inf6 :;a+qrz1 hfl1hc7m+lvg qncrease 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 sprz;/q(-szah-.q qlo xj ing that stretches 2.00 cm when a mass of 0.6-qqxlqa;z s ohz ./-j(00 kg is suspended 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 constant 60 ysege(a)w/ff .clsxb+3.d3h 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 oscillatcb+ geyse3s )/lw3. hfd(.fx aing. 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 25,cc hz 0m- u)my7rv e8iduc /,ikndgspring 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 posi)cmn deuyg /udi,7k,h5rzi2 cc0 vm -8tion 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 spri/qd1llact0c 5o9s m;k ng 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. qdto/m10 sc9lc l;ak5 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 ul 1y-, ucfng91jfu ew 3m3sv5bm*8 4lwna lyr5ndergoes SHM. It goes through 10 complete oscillations in 5.0 s. What is the perio8rwl - yma3nbwl5g 9fms3f4j *el 51n,vcuy 1ud?

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 ; vl mj q.lf4c7xwdf6(da: m7fconstant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of this vibrating mass whe; .f4ml w:fqcm7vf 6ladj7(dx n 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 attached to a spring of spring constant -b(nz-u ,me ydrjxo q*3z1yk( 20 N/m along a horizontal, frictionless surface. The object oscillates in siky1(jq u,*b - ny dzeormx-z3(mple harmonic motion and has a speed of 1.5 m/s at the equilibrium 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 amplitude of 4 cm. The energy is 8.0 J at)q h6gv(tb 4qo this time. The mass is cut in half, and the system is again set in motion with amplitude 4.0 cht )qqogb 6(4vm. 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 20 N/0d vnsld 3.ez6 )oasdcd1z7tz1 0yeh*m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of z hdna1czs .0ol76*yvsd1 e 3z0)detd 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 of springo3 75rcr(cqm9*p txvfc.e0kd 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. .k7 v( mpfocr *3qxd0t5c9recAt 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 attached to the end of a hor1ik ++ j3 es wjm-uk.jjntk1g*izontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What k+mu-k. jtk g1ews j+jji1n3* 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 attr(u nkc6(7hhf6ik n e;s+u / qqxep:r9ached to the end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitu9nuchrksr(f6k e+xu:n7 6h; qq(e/p ide 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 from the free end of an ideal cy4k i+0o)xf .lq50 zettx co:spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kinetic e5. +xy tfct4 ozlqo0k 0e:)cixnergy 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 displwp-uq:j f/gk ,2oj8yai x-w m-aced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the maqp w8j2ugw yjx - ,-mk-oi/fa:ss 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 sprin8end1xc b*0q1eg)3 - l raf4rx.hnhnkg of spring constant 10 N/m. The object is displacrk -8hgxa 1 )fdq*.r1chn30nleb nxe4ed 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 of6w;8zj k znmrl ;td,f* spring constant 10 N/m. The object is displa8; j6,;rlntdz*fzm kw ced 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 fromrl lpb0 aoox5v; 4j5o/ a spring of spring constant 18 N/m, displaced slightly from its equilibrium positbroxp/a 0 loo554 j;lvion, 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 oscilla xu*w+*3z nun(*rnz s;r h9pzytes at a frequency of 1.27 Hz when displaced a distance of 2x9szun*;r3**yrzzn phnw(u +.0 cm from equilibrium and released. 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 different sprinc7aq+k/y /vf okia*9 hgs. 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 the maximum speed of A compare to the maximum speed of i//kcaa97vfq*h +y koB?

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 the mas qxv f00ij0q 1foj2k0gs stretches the spring 2.0 cm downward. The mass is then pulled an additional q00fj0xk12 qf ivgjo0distance 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 suspendexfk w9k6w t*e(d on a spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distanc6e9 (fwxkt* wke 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 manvq1o3 t3 nx:+y9icd jss stretches the spring 2.0 cm downward. The mass is then pulled an add+x tq3 : yn9cov31djinitional 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 harmqef *aef t wo1f1.m:2monic motion obeys the following position versus time equation:. foqew1fa2:1tem m*f
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 following positir(qawg (s0n:+wi k /ngs/ o grox6n(,von versus time equation0w/:sn/nqxg +grrosvn((,ogk6(a i w:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 following position versuss( j;pal m6gm s,rpd(*ynv-u/ time equatio*6y (nau,pp(sjg l-rvm; mds/n:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 executes simple hab 5o4rs4vesi1t l e2;hrmonic motion according tt h25v 4bl oirs1;ese4o the 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/f 0i pbs5.sc8ezfwb(nt,6 *avv 6c6hem oscillates on a horizontal, frictionless track. At t= 0, the mass is , sbh66nv*0 ve( cpw8t csiz5b6fa ef.released from rest at x= 10.0 cm. (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 complete swings in 8.0 s. (aw-7.3 kv j fkxcn2e j(uq+wt1k) What are its frequency and period on Earthc k+kt2 (7x3k1-.w nujvweqjf?

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 icrh0de3x, 73l ypp5uwp .u, xqs 28.84 m long. 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 period o )vkt* pglkw )/7mhh5gf 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 grandfathc0t18la ty dt;rvo8f(er clock is 1.0 m long. What is its period on the Earth?dl ;vo rt1ta0 fc(yt88

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 long. What ivavu (/e.cbf- s its period on the Moon where the acceleration due to gravity is/ v- b(cavufe. 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 massless st 9e6ejpn/2iewring. When the mass is displaced slightly from its equilibrium position and released, 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 ti6jp2ew/ee9n he 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 angular displaceme+0 n9cg ztvl*nnt of 8.0e. It oscillates with a period of 3v0* zcntnl9g+ .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 g g 26;q/6bkx5.2 -pxwoiejcfe ttd7j tiven time. The frequency of the wave is 120 Hzxebwxjpj d.t6t7 ;fgk/ 2q- ceto62i5 . 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 giv/3/h2fs9+xhwoxoab pen time. The frequency of the wave is 1202 bxo3owh/pfx+/ h9as 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 vwgp 9tv7t 3ql oa*3;wa given time. The frequency of the wave ia;l g9tv33pwq7vo * tws 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 a wave which has::lwis7-yk zc q79bqy 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 w -+1)nsdm9elqkfs , ispp d5e4ith 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 hasv9.c2 vj rwznm*6f o4s a frequency of 12 Hz and a wavelength of 3.0 m9mjs nrc6f4 2zovv.* w?

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 a wave that has a wavelength of 3.zukx zfmc2q5 2d;ws i690yvu80 m and a frequency of fx mkuz92 vu;5 yi0c26wzs qd812 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 travelin3yqul .06 -nxl ;vlbms,ydk2rg at 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 mass density 0.0050 kg/m is under a tension of 139npbfx 5m1s(wzb)lc r-d .5w o50 N. c5n bbl5ozwr9f) w xs(pdm1.-What is 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 6.0 g/m is under a tension of 180 N. k3p6dgne.ai. 5jem7q What is the velocity of propagation of trana nd ep5mgie3k.76.jq sverse 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 travelwm .n et;qpr0 fj/o7v2ing down a 500 m long wire whose total mass isqj07w vr2tef.p;/ nmo
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 wav pqw z/ugd6)4xvl9*ulvqj4-z e on a 2.0-m long string fixed at both ends is 200 m/s. Which u4l4) 69*zg-q wxq lp vjvz/udone of the following is not 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 has a fundamental frequency ofto u(elcdbb8* i0 ;3fs 500 Hz, which one of the following frequencies can set thelbe0sc3 fu(otbi;d 8* 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 wice,wx pri:; *hxp4,fl rw *b:ave driven at a frequency of 480 Hz. What driving frequency will set up a standing wave wit*x*wh e:,f4rr w x:bi;lpc,pih 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 witz0dmvn ,1z*v 5f4odaz h a standing transva1o n,v4z0dd *mz f5zverse wave pattern containing 3 loops. What frequency is needed if the standing 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 denszzgs,wgz0 : xjh69hd*ity 1.5 g/m is under a tension of 20 N. What should its length be if its fundamental resonance freqxz6jzgh z 9s:hg0*w,d uency 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 decm2wgt,)q 4.y .hht0qcte+ si nsity 2.00 g/m and length 0.600 m when it is subjey, me+tcg 4shq0c tqhw2.)it.cted 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 i vze e(t:nv nw(6rdo+ kg06nx;kb2f5ends. When the string vibrates at a frequency of 85 Hz, a standing n6wfb+ xei:(renv ztov;2n5 kd kg0(6wave 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 05:32 , Processed in 1.134104 second(s), 228 queries , Redis On.