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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 called thyd .i,yd00p9eb59 hu b lju5cde

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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 cycles7q r*kb6 6;f)nzp0cdw8tu gg6 bsmwm; 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 displacement from the: xemdi cyl8.: equilibrium point is call i8med.y:x:lced 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 the mass is at its maximum displac1kjq9 nm+6 lpwement from equilibrium, its instantaneous velocityjp1 9nk mwlq+6

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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 undergoes SHM. When th5mv 8o -z6-2ynnm lu hfado78he mass passes through the equilibrium pos8vmu6zo-h nf 2n7lao5d -8hy mition, 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 displacement fro)3/s1g :faiyrh8; pyr 1ttbfum equilibrium, its/ ; pstf1 1b)iyu8rtag:3hyf r 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 to a vertical spring and b*ln1zr) s,t l3wae * yvq*;s/ydomxmc0ccb3 ;obs up and down between points A and B. Where is the mass located when its kinetic energy is a minimoc )le; d 3y/;***mtc1zsv a30, ybmlsrxw cnqum?

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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 to a vertical spring and bobs up and do+ z9 n2yhs3wukwn between points A and B. Where is the mass locatedyk3s2zu9nhw + when its kinetic 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 and bobs up and down between pointsl:ay.9 vyoc k6 A and B. Where is the mass located when its potential energy is a miniv 6yko:.lcya9mum?

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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 sprvaxj/7 d-wyk uqo o-(.ing and bobs up and down between points A and B. Where is the mass located when ko--(qaxowy uj 7vd./ its potential energy is a maximum?

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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-spring system j i5xzi /9iq dmdxqm.us8.0wf 9vak:3produces what effect oq09mskmi5zq/dw8i 9x: f 3ai xjd.uv.n 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 vibratibhn7;dqeiu wkt(c ,9: ng mass-and-spring system produces what effect on the ,cihb7w;e n d:( q9tkusystem's mechanical 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 vibrating mass-and-spring system pejniochko wk wb/ b(m;4.w 1(*roduces what effect on the system's mechanic( en/ho jomww;kb(1bwic* 4. kal 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 thcw9 6x ,pug:d3i7nhh x /9qdvie Moon. Where is the p, ixwpu vdndiq39hh7g 9xc:6/eriod 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 systyeoj0 g7oti ) n4ynq. rg5s2c+l6mo6ddlx69s em causes what kind of change in the resonant frequency of the system? (Assume no change in the system's mass m.)rd s ny x0od95go .l6+noe2)ml 6gtjc6 7qiy4s

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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-at+j i 0:quzn1bnd-spring system causes what kind of change in the resonant frequ:buqzi +n01 tjency of the system? (Assume no change in the 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 amplitude of a mass-and-spring system causes what zplc+0. ;5 slbmkbynh0gkc, 8kind of change in the resonant frequency of the system? (Assume no other changes in the sysky,80.0lhcp+ b gcmk zsn b;5ltem.)

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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 of a mass M attacef7 934jva5tydhh l2hhed to a weightless string of length L. For this shd3 5t47lvyh afhej 29ystem, when undergoing small oscillations

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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 time required for xpbmhv5w85 ,k one complete vibratvx5pkb8, wm5 hion

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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 4nmnl:s93e 0kq z*mqsf )p tj*h h.y;oare 3.0 m long. The period of A is T. Pendulum A is twice as heavy as pendulum B. What is the period of t 43o)kn*;s*jm. nh9:yqhq e f 0mpzlsB?

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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 completis 1lrx6x2xd /e vibration increases by x sxl/2d61i xra 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 n09:bmoy; lt t7:ge hzpendulum's frequency if both its length and mass are increas tzey7olm;hbgtn 9 :0:ed?

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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 frequenog/dtaz q -mi/*o;in.cy of simple pendulum B. Wi-d/ ;/tzi o.n*qoamghich statement is correct?

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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 d.tvimbht.4 n2 zd9s;pendulum to the Moon, where the acceleration of gravity is less than on Earth.zsn42b;v t thm.did9, the resonant frequency 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. 11-14 c *qo t)5 opibcib4 a.)jspqmimj4z3b82zu : represents


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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 represie:-g oc( w-:4xnm jxqents


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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 represg+l)o5 ; l fhiwf;+0vzkn e7x /ehu*azents


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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 on thed4)vgh1fl4 f8*d vf.m*m epza

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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:y ,vhxhr u s32zvw:e9kq4f6c displacement of points of the wave from equilibrium is called the v,kyvz 4q26e3s :xh9 h:uwr cfwave'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 wavej sefj8,n ieu:x +j.q('s

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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 waa q/ijv;p5h*wve passing a point per unit time is called the wave's* qaiph;v /5jw

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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 the wavelength ii)y6 0 ygzbfm(s 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 waveakk.nihl z9e 7m10w 5l(b.qtr increases. What happens to the distance between successive crests if the speed remains con0.t n5ik.lbqz7k(wemr l1 a9h stant?

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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 t5n, vd a1rt81avzyk8lhe same string has wavelength 2l andyd15ar 81vk ln8,zvt a travels with the same velocity. What is the frequency of the second 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 tensikslsbor 16 z.3on T. A standing wave is set up. Whic13 lsbkors. 6zh of the following is true?

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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 speedkm/d4 6itwfo 9 of a wave in the string is v. What will be the speed of a wave in the string if the ma9k td4fwi/mo 6ss 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 and length L is under tension T. The speeccu-fj/6 b 7u2 zfygf-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 in mass26 fbcjzcu g-ff/-7y u?

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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 ten1dc2-x;dlj5 p )4-t mtoiruxnsion T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the tension is increased tu ri51- dnl) pmcxot 2x4j-;dto 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.4rk 2itz /ro3h As an S wave travels through the Earth, the relative motion between the S wave and the particrho4/rkz 2it 3les 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-mb q1 wfn; w0e54 dbhkd:ouy4 is a longitudinal wave. As a P wave travels through the Earth, the relative motion between the P wave and thnhe u f;d byw-qm k4b5:01do4we 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 i h6dgx +r.(odtmxl0.ps

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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 r-*awk5vu o8*t l h,3yj1m/ eqry kdb;qight along a thin cord reaches a discontinuity where the rope becom*q bk3h y t,/kr q;wa8uy5 v1j*eod-lmes thicker and heavier. 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 equal poqy550bwo 9mx4,(k gezfv+h e csitive 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 0 k,ego 9 q5ceyf+bzmw4 5xv(hsame 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 ono4cvfua k(t20d g+xx5i6lvi ye g7 63h a string. The 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 px g54c2a7klf u6(vt+h0 6dy3oxeg viioint that they occupy the same region of space at the same time

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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 )hd 1 0lneqc(v 8gjr9tfixed at 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 ten,fx5s+ tj6jx dsion in a violin string, the fundamental frequency of that string will increasxxj +5,tj6fd se by a factor 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 spr0*rgxhmqa5o6qnj w-mab8deoax e+4: 08jyv/ ing that stretches 2.00 cm when a mass of 0.600 k+a- g46yn*evej80w0bdqq8 oxx5r:mam/ ha ojg is suspended from it?

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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 cruew4pwu cg, 5n4e;u1onstant 60 N/m along a horizontal, frictiww5, nuru 4u 4gec1pe;onless 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?

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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 spring of spring cm- ld7x-ix0ffonstant 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 o-lf7xidfm x-0scillating. 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 coa * xaujf1syj+y2c--knstant 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 tak1-2 y fyaju+-*xkajsces the mass 0.50 s to go back to its equilibrium position 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 SHMp55d n3-zgpyq :yhl+ ;y:tcnk. It goes through 10 complete oscillations in 5.0 s. Wk 5d;c+53ly hn:y:pny-g pqzthat 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 of springcs ad0k,3nxc3 4 tp2zh constant 20 N/m with an amplitude of ,szhnxc3k03 cd4 2a tp0.30 m. What is the kinetic energy of this vibrating mass when it is 0.30 m from 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 N/m along a horilshz3 o-e.nw9zontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. What is the total energylwoz. hn 3-9se 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 with ampli)xzt*8w2l l mktude 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. Wha m8lz)lxw t2k*t 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 to a spring of spring constant 20gxx 2,*z; kfxh 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. What zxg, f 2;xx*hkis 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 attached2jhptt4v-m f8suf9 e 5m;bv/ s to a spring of spring constant 20 N/m along a horizonta;b5vm4-te/s f98fv th2suj mp l, 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 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 +q qft,hm2ap *end of a horizontal spring of spring constant 50 N/mph q m*qfat,+2 and set into simple harmonic motion with an amplitude of 0.10 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 of a horizontal spring of spring consta.x /vq0we6:wk v n 1bn6iqwma5nt 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical energy o0xqeqi n6mv.waw65v/:n kbw1f 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 f ded3 g ,dfkz5)jx.7txree end of an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. Wh d5 tgf3)kx.,de zxdj7at 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 displq nyw)it.(t,q lfqj.,aced 10 cm from its equilibrium position and released. A frequency of q, ntf.)ji ql(tqy ,.w4.0 Hz is observed. 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 atta)ld *l0 .adaozched to a spring of spring constant 10 N/m. The object is disp.alloa dz *d0)laced 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. Thg md: : 5mxci1d*lw9/ps,oxt - v60)vcjrwbjze object is disp1 jwp0/6v9mmcr),w :jd*-idbv t5zxs:lxg colaced 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 spring of spring constant 18 N/m, displaced sl4pdujbrw) 3z8p; 8zmu-yz do3a8fp;j ightly from its equilibrium positzozdp b8u;4;jm a38 zjfur3p)d 8w-ypion, and released. What is the frequency of its vibration?

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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. I ;6uwxwhfk4 -it oscillates at a frequency of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and rw;kuf6xhw 4 -ieleased. What is the maximum 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 different springs. Mass A vibrate5,4t glw)ugos -2hfilzk y n++s with amplitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5.0 cm)2nhgs5lku-y + lgz,4t+w fo i at a 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 suspended on a spring. In equilibrium the m/ s -k zj)isre;,fqx;qass 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 f;zj/iqs)- r s,q; xekthe period of oscillation.

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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. In equilibrium the mass stretchesrxod s/2b6lhl)ryevk./us71 the spring 2.0 cm downward. yl) .s v76okrr/lxsd1ub 2e/h The mass is then pulled an additional 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 suspended on a spring. In equilibrium the mass stretches 9a7w8repm qk, the spring 2.0 cm downward. The mass is then pulled an79a rke mwq,8p 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 motiondmjpk1)6nj+j obeys the following position versus time equation pj1kd6mnj+ )j:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 versus time d 74+ne ird-+i mml/cqequationq-rni ddm+4i +e7lcm/:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 harmonic motion obeys the following pokniv+ 75mx.uv hvm6w. sition versus time equationn i ..muvh6mw7xvkv 5+:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 s i45isp8uav)dimple harmonic motion according to the eq4iau sd)vip58uation $y = 0.50 \; \sin (18\pi \times t)$ 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 consgl d z9a:i:cdc;.xqi;tant of 20.0 N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 cm. (That igdq;ac9 d:;i :l ix.czs, 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 are8x 1me 00px*jyczkd(k its frequency and peri mx *jx 0zpkc(y1dke80od 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 28.84 m long. What is its period on Earth7zw2e7(f be6r ndny0k ?

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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*:wjm6opo; va its 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 Ea 5.(ki /hk. lxi,;sxixw cy7vzrth?h/ .xic(vz s,i wl7i; k5x.kxy

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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 gran4:ajm ,f;tzwx dfather clock is 1.0 m long. What is its period on the Moon where the acceleration dua,;xfm4 j: wtze 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:dus7zdm4cw7zjdv ze 6 p5 ny)e+v,c* of a 0.25-kg spherical mass attached to a massless string.cu4)d6m+zcp*n: d7zzwev 7v ,s j5yde 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 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 ksejbjit*d)+1 t3dq )a 20-g mass has initial angular displacement of 8.0tt j*iskq)3bj+1de)d e. It oscillates with a 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?
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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 ayyub i k2adb2g8/y;n; t a given time. The frequency of the wave is 120 Hz. bgnk;yiud/8y a;2y b 2What is the amplitude?


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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" ofjjvl qp:4q-a2 a wave at a given time. The frequency of the wave is 2jvp4jqql -a: 120 Hz. What is the wavelength?


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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 time. The frequency of the wav h7sc)uslqenq4 50 p7;zv2hgbe is 120 Hz. What is the wave spncu054; gq plhs27q h7e vzsb)eed?


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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 7 nqo9x1w/8kj kj9uhnperiod 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 p3c(rxc 0+ zzp-emyb0a 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 agbr) 23 ri7 de3tv9fzb wave has a frequency of 12 Hz and a wavelength of 3.0 3)brb73rfzvd i t 92egm?

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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 ;l o:sbjt. )z7ct.nvpzgx1tk j9gw 6/a wave that has a wavelength of 3.0 m and a frequency ofx)l gz/snpv:kz9wj tj.17gto.6 t ;bc 12 Hz?

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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 of a 2.5 m wave iyb*c/q0 ac:k 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 taskynk zd 9) 11zxlo2( lq7/xuoolq: r/r*e4nension of 1350 N. Wh)a/ dxyxr(:ozukqo/9n n*lreolq1zk4ls 1 72at is the wave 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 ne cona,9ion/ sx9+:ezi:6 rtunder a tension of 180 N. What is the velocity of propagatio+cto eons in:, ar/9zx:96ine n of transverse waves 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 wavelenm 0xf,v u)axnb3y, wp4gth is 0.500 m is traveling down a 500 m long wire whose total masp va wfxx3y,)b n0m,4us 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.
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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 tru;u 3 l.,wzuc l* slgmy4d(ji fwy6e/1ansverse wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a resonant frequency of thiull,.6du*gwmc41je;w f i /(uy3lsyzs 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 fundamental frequency of 500 Hz, whic2mixyyc *pz,2h one of the following frequencies can set the string into res *2ymcx,z2pyionant 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 four equal segments ia)uu+,x/ lqk 0; ftddjvy44n bn a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wave )f04 /x+ , u4v;q dybuljtknadwith 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, vibraz3 4+nyyeiq ex0) nuz6tes at a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the standing wave pattez43zieyn+n06y q) x uern 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 i.8c3avx8q aqyn2 t(sits ls8 2vnyqa qx c.ti8(3aength be if its fundamental resonance frequency 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 harmop5 m qi0gk+*wrnics of a string of linear mass density 2.00 g/m and length 0.600 mk*m+ 50 wpqgir when it is subjected 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 vibrt8 :ta0rcfm8 qates at a frefmc8r:q8t at 0quency 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.
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