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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

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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 xvf1:g mejrp/o*7z (gcalled the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a periodic process, the number of cycleohjp t/m 0;o s.n7qgltq96c:es per unit time is called the

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For vibrational motion, the maximum d-wmu.n0x s.4 awo(gqc:8mnlu isplacement from the equilibrium point is cal qc sn.mo:.ngxww(0m4lu-a 8u led the

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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 td9z bksph5h qj+ 07trfsds3;6he mass is at its maximum displacement from equilibrium, its instantaneous vels36dsb0j h ds 7krf ;q+zt59phocity

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoesa n3o1l bn/z ):j7zfzd SHM. When the mass passes through the equilibrium positiz/n zoj)zbf :adl17n3 on, its instantaneous velocity

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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 displacem67o.htsl: 1 ywajj,gj ent from equilibriumj., waj o:jhl1s67gty , its instantaneous acceleration

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached t - 2+xsy/qiaqjo a vertical spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is sj2q/ i+x-aq ya minimum?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached toka*0ydo ,k ig8 a vertical spring and bobs up and down between points A and B. Where is the mass located when its ki0ay*ikg,d ko 8netic energy is a maximum?

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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 an ( pg t0z4eni q3smldp+-6x3gjd bobs up and down between points A and B. Where is the mass loc s +g4tp-d6pe3mjligqzn 30(xated when its potential energy is a minimum?

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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 and down between poinx6/ a;j.7 pamt rkb-iqts A and B. Where is the mass located when its potential energy is a maximu; pabrai6/.jmt- kxq7 m?

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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-spre ;ddqv:cbdlo kxf30b0 4i00xing system produces what eff; lv0b :dbecdf03x004ixk dqoect on the system's mechanical energy?

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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 whsidw(sm1e8 x / b-pxx+at effect on the system's mech w xmx(sxe-ps8db+ i1/anical energy?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the spring constant of a vibrat8 .(k d4owazpu r0s ytm:rfr+)ing mass-and-spring system produces what effect on pr0rzd:fuy)k+4a(m8 r tosw. the system's mechanical energy?

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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 on the M a ericg;r-2:eoon. Where is the :g2reeai-;c rperiod the greatest?

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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 cause/ szs;jod1v 1ys what kind of change in the resonant frequency of the system? (Ao1v ds ys;j1/zssume no change in the system's mass m.)

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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 what kind of chb 7a 9v cxdvq+3ecj73pange in the resonant frequency of the system? (Assume no change in thv397vcjx7+d pe 3 bcqae system's spring constant k.)

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the ampli z4lgehd /(vb(d1v,nt tude of a mass-and-spring system causes what kind of change in the resonant frequency of the systv/(,z ltgbe v1d4n(dhem? (Assume no other changes in the system.)

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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?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consists ofxv 27tx;blz,rl6 0cle a mass M attached to a weightless string of length L. For this system, when undergoing small o,e 67ctxxl2zlvr0b;l scillations

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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 p3d)5(1wma dpagw1 fu time required for one complete vibrap51u da(w3m)wpag 1df tion

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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. Peny*-:xtw+ yugddulum A is twice as heavy as pendulum B. What i+y wy-u:d*gx ts the period of B?

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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 complete x7-eg l:yp1c p* f+k54; dyucv-ysfmyvibration increases b-cym5f7g;y :l+4se- *dp ykufx pcvy1 y a factor of

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to a simple pendulumfgei6 7xx f y37m2wns:'s frequency if both its length and mass are increas 2 x:36i7nwxfygm7f esed?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Simple pendulum A swing-fwwu rv:8spf na b/ws3ga(45s back and forth at twice the frequency of simple pendulum B. Which statement is co 8s:fw/ w4r5b vg3a(apsnfu- wrrect?

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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 accegr n:gy4q 22mvleration of gravity is less than on Earth, the resonant mvr22qy4 gg:nfrequency of the pendulum will

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve A in Fig. 11-1 reprs08tij d9rsn z9chs(5 g):wg-hk7yqt esents


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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve B in Fig. 11-1 rekf6zr25b2ws c j;1 mlhpresents


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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve C in Fig. 11-1 repres0d /.r k;j7zru/ bkk yt1 b04eltxb5wments


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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 ok dl0m:i aq)o. 6+dgqwn the

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a wave, the maximum displacement of points ofpswju-x d,54g the wave from equilibrium is called tspdx 5ju-,w4ghe wave's

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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's0 o.i;iyk- dpj;k/yiw

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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 ahl /9+kl1hngs point per unit time is called the wave'slklg /hs+91nh

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a wave, the frequency times the5 w3l l mzl 9l2ca:g 95wtxe0r7vec*av wavelength is the wave's

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of a wave increases. What happec/kj+ x 9sgj+0+bm lfain9tp,ns to the distance between successive crests if the speed repj mbks9x i/,n+ ++9 caltjg0fmains constant?

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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 second wave on th0m; o; pitf4lql5,ux 0km wh8oe same string has wavelength 2l and travels with the same velocity. What is the frequency of the s0 ftml4qwo 0ouhl5pix;,8 ;mk econd wave?

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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 tensi880gt;gxza di,zvtj 8pl/xv;on T. A standing wave is set up. Which of the following is z8gdtx jzt/; 08vvl ga ,;i8xptrue?

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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 wave in thnj-(1ap:t j q z/2bsuqe strin-(qa j /s2bjpq1:ztu ng 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 length?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m andpr:vm6 bog0 3m length L is under tension T. The speed of a wave in the string is v. What will be the speed 0m6bmg 3 p:vorof a wave in the string if the length is increased to 2L, with no change in mass?

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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 bc(i 2/n3nwhrn 1 8i5u ufi(zytension T. The speed of a wave in the string is vuzc8( (h5uiinb 3 yn/wr21inf . What will be the speed of a wave in the string if the tension is increased to 2T?

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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. scd;( dtr7*oka3pux w7 6kv )fAs an S wave travels through the Earth, the relative motion between the S wave and the par ok)x(suw k*pf7d 7dta3;c 6vrticles is

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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 trav(sn3 9shmp f6rels through the Earth, the relative mon r9s 36(fmpshtion between the P wave and the particles is

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity of a wave(l;ls ,0wdlbt is

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A wave pulse traveling to the right h6rc9v v7p1c nalong a thin cord reaches a discontinuity where the rope becomes thicker and heacpr ch vn96v17vier. What is the orientation of the reflected and transmitted pulses?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two wave pulses with e4q6n4u phc r)ijof,f6qual positive amplitudes pass each other on a string, one is traveling toward the right and the other toward the left. At the point that they occupy the same region of space at the s6 frn6iup ) ,hj4qf4coame time

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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. The8i*t8 w bc:xo)dvne;b one traveling toward the right 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 timev x *on:bi)w;bedt8c 8

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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 atnkbe 9 2yr:b3d both ends, occurs when

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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, r ie nrna*lp9p (:(li8the fundamental frequency of that string will increase by a fa(p:i(p*rnl en 98 rialctor of

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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 stretc q1ola (x fp4: e6sm/ j+cepdq1qfo+drp;mq70hes 2.00 cm when a mass of 0.600 kg is suspended from ipc7r (s4p;ma/m + fqdqfp0qoeqx 1dj+ :l16oet?

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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 6:,m)w 0 fwklxy youo3*0 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 whelw3uyf ,0yo)okmx* w:n it is oscillating. What is the amplitude?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a seq--. v6vy) yer0lkjk pring of spring constant 60 N/m along a horizontal, frictionless surface. The spring is initially st.ek 6r -ejqyyv k-v)0lretched 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 period of oscillation?

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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 3 vvl(ezmqn a63 *hz:ya 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 posit3nal3(vzmvyqh 6e: z *ion when it is oscillating. What is the frequency of oscillation?

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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 ly:bw.;cugx9u)c5j ygoes through 10 complete oscillations in 5.0 ug9) c .wbucl5;xyjy:s. What is the period?

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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 pjk ,guykzq4g5:h. l 6of spring 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 frk.ghg j45l,6 k :ypzuqom its equilibrium position?

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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 20 nuo97vpz.w.((hd wa7r7 rhcn cyy .x, N/m along a horizontal, frictionless surface. The object oscillates in simple harmo.a7.9hzro.py u ,cnd7r y(7hwv wcnx(nic motion and has a speed of 1.5 m/s at the equilibrium position. What is the total energy of the system?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass undergoes SHM hbpv 01g*4r),gzj q s pwy1ft:with amplitude of 4 cm. The energy is 8.0 J at this time. The mass is cut in half,rg:bgt1v pj0pwzq1sy fh * 4), and the system is again set in motion with amplitude 4.0 cm. What is the energy of the system now?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached toj+ oxq 3l:zdug(z- yh1 a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and hq jy-+ ( o1l:dhzxu3gzas a speed of 1.5 m/s at the equilibrium position. What is the amplitude of vibration?

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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 spgptl/z4weiuc n9p( *6 ring 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 pos(itc/ g pw4lzn 6pue9*ition. At what location are the kinetic energy and the potential energy the same?

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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 sh3qohi 7* k4iepring constant 50 N/m and set into simple harmonic motion with an amplitude of 0h*io4ki h7eq 3.10 m. What is the total mechanical energy of this system?

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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 x*lqf l5q)mhi* *zn.m 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 mechqxlmm )i*.*f *qlnz5hanical energy of this system?

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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/;az ;sdej vq8 spring of spring constant 20 qsde;j8a; zv/.0 N/m with an amplitude of 0.250 m. What is the maximum kinetic energy of this vibrating mass?

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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 displaced 10 cm frostf*)q.rzhhmk r9 0p5 1vweu)m its equilibrium position and released. A frequency of 4.0 Hz is obserqt.fvhwzur pm 5sh)er0*)k19ved. What frequency would be observed if the mass had been displaced only 5.0 cm and then released?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached 2xj+ bwweucp;; ql+.u/9 g otncg8l3uto a spring of spring constant 10 N/m. The object is displacedoucxu93tqgwbl/ej8ng w;+;l puc 2.+ by
5.1 cm from the equilibrium position and let go. What is the period of vibration?

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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 constant 10 N/m. The object 3xjnl8 w 6qax8qjx00nis displac08 j8lnwjxq0a6x3 nqx ed by
5.1 cm from the equilibrium position and let go. What is the frequency of vibration?

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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 spr(r cd h3(akfgild20q/ing of spring constant 18 N/m, displaced slightly from its equilibrium position, and released. What is the frequency of its vibr kqa 32rh0d/id( cf(glation?

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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 ofj g5w/kedt/ +g dy,q2t 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximumj d5qwkygegttd /2,/ + velocity attained by the mass?

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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 differe9/k.qe5ba to orp0+wg6d,hv *a s x5bont 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 aq ,/ae g*065svoohk9.t5dob+ pbx arw frequency of 16 Hz. How does the maximum speed of A compare to the maximum speed of B?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is sus5t s- mmpf,l*epended on a spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the period of oscillatioem fl mp*t-,s5n.

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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)n,+n .vcmlvt z:r: ht. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an r,lvn:.tcn)+t:zv mhadditional distance of 1.0 cm down and released from rest. Calculate the total energy of the system.

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspej8 fu0i2z1hs57n2edbep3 nz onded on a spring. In equilibrium the mass stretches the spring 2.0 cm downwaip j0zzn3712 hud obe 5ns8f2erd. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Write down its equation of motion.

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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 twq g8p7 wd g(lj96hhi1xe8+lkime equatix67die8 w9 wggl 1h +kp(q8lhjon:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the amplitude of vibration?

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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 position versqmw6y):a(ut8or 4 db 6g4 hoxbus time equationo(t8mwbbyhog :r44 dqua6)6x :
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the period of vibration?

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmon2 .rin mrrc3w4s(ezr9 ic motion obeys the following position versus time equ (s42 wrrenzc3rrm9. iation:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the maximum speed of the object?

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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 harmonic motion accoh++)45z 8hbpkcfd nyc o4i o y7ug(ng*rding to the e 4 upoyc)+ 4zh *ih5bk+8n(7ggfcoyndquation $y = 0.50 \; \sin (18\pi \times t)$ where y is in meters and t is seconds. What is the period of vibration?

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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 oo0ym:cnjd3 c -yrzgo1z0bz-- ;glgm0scillates on a horizontal, frictionc3;brm mz 0 -:yg-lz0g1yd ocnjzgo0-less track. At t= 0, the mass is 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.
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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. (a) What are its fl9kpvzq+atgxe-m)j2 )* * nxcrequency and period2v*l xz+gxp9jt )m*an)c -q ke on Earth?

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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.00-kg pendulum is hf+m9p3:i(iq- fh0h(tn g oon 28.84 m long. What is its period on Earth?

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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 s on Earth. What is i9q*g31 vn) +x9b+ tnllehpvz ets length?

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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 the E :, :mcjgpd/bbar:mbg jb:p d,/cth?

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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 longqhab 65k9 j)ww. What is its period on the Moon where the acceleratwjkhaq b5w 6)9ion due to gravity is only $1.7 \; m/s^2$?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consists of a 0.25k 6. gfxo70pdh-kg spherical mass attached to a massless string. 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 diamep.kdho7 0g6xfter sphere) had been attached to the string instead?

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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 an art.q 5x 2,qnkvsc,es0lm5+egular displacement of 8.0e. It oscillates with a period of 0 t,s.e kq+5s 5,cqxa2rvlnem3.00 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?
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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 given time. bc y+3el k 8vkn*:qh0k The frequency of the wave is 120 Hz. What is the amplitude? vklq 8k e30knby:+*hc


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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 frequency of theea /fu9 s14, axpirl*e wave is 120 Hz. What is the wavelength? u*erle,9a4fxispa1 /


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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 tie, zjeflph7eg-n(r4 + me. The frequency of the wave is 120 Hz. What is the wa re4nepgze +jf( ,h-l7ve speed?


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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 a periw tv x z(sq8:f9brx/9lod of 6.00 ms?

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the period of aj ftw m u+n(yfrj..t;* wave with a frequency of 1500 Hz?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wave speed if / 7j(e/a v vq+o/ud;add:hw,abn bn g0a wave has a frequency of 12 Hz and a wavelength of 3.0 m+we,djan/gad7 qh0 bov;d /u/(a:b vn?

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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 wavelengt,llo *ql.n,q g/sgj01g: p lnoh of 3.0 m and a frequency of 12 Hln :oljgno,/p0q g,1.lq gs*lz?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency/x17h p:pgo9y 8 lkwqj of a 2.5 m wave traveling at 1400 m/s?

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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 135 pxo7dczow)16 aqv:6eauxs1: 0 N. What is the wao 6c:xzwea1d)1sp6v:q xoau7 ve speed?

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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. l xk g;z2k4mhl uzxmo q/64p/nw7, mv0 What is the velocity of propagation of transverse n0zkhulm /xx6v4;4pk l wom,/zq27mgwaves along the string?

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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 down a 500 m long wire whos(ssn jzdc i1 k wgxg/eq nu9r:u5)g.p vd8.7y6e total mass i(dr7ed/n g.:q gzusc8s9jpxk1ngy . u6iw)5 vs
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.
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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 on a 2n9o/ooxiodq+5f p4g*d x -oz4.0-m long string fixed at both ends is 200 m/s. Which one of the fo4oo + 5o9ogq pfzdd-ixo*4 /xnllowing is not a resonant frequency of this string?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a guitar string has a fund 0hqc0u xpv9n1qx9k1t amental frequency of 500 Hz, which one of the following frequencies can set the stritkvp0 uxnxh 19q 01q9cng into resonant vibration?

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95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A stretched string is observed to have f rvz3+c)zt2 bo. +bqzvour equal segments in a standing wave driven at a frequency of 480 Hz. bzvz) r3q.tbv+2+czo What driving frequency will set up a standing wave with five equal segments?

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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 sh; z28m q-aeun7o w7kwb v58cttanding transverse wave pattm7e -ck8n t vo;wb 7aq2z85whuern containing 3 loops. What frequency is needed if the standing wave pattern is to contain 4 loops?

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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 should 1bda qpa)1tk 7its length be if its fundamental resonance frequencya1)ba d7t1 kqp is 220 Hz?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Find the first three harmon +a2ps-l ,uzlvics of a string of linear mass density 2.00 g/m and length 0.600 m when it is subject + zvuallps2-,ed to tension of 50.0 N.

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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 vibr5q)qc4 z6uh+y6pkkfvu di0; kates at a frequency of 85 Hz, a kkq60yz kqihu; pv) u 4f+6cd5standing 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.
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