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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 calm flhz1gko 9ggy)7,,;cgql0p z vom 3+led 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 processm p v3 i(hif(i03f2rfg, the number of cycles 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 displace ijfsjz/ra2l -wg /er12 psz);ment from the equilibrium point is called th;-lzs/)egz jp1ra s2jr/2ifwe

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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 masih/s)enf q4) 2(ds dpts is at its maximum displacement fr4et q2n ssp )hfd)(id/om equilibrium, its instantaneous velocity

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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 the mass passes thro,esfkg, es9nsam;2d (m2cws tp 0jy45ugh the equilibrium posi;m5 swssegnm,e2p 9 2,fk csjt4dy 0(ation, 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 displato:p*og 24k ldp 3cb(tbo +1aecement from equil1 p:(oc l4t*a pdk b3ego2bot+ibrium, 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 to a vertipaqdmved(bb4 -i7jh 531wu+m cal spring and bobs up and down between points A and Bme4h umw dpa-q137v(b d +jb5i. Where is the mass located when its kinetic energy is a 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 to a vertical spring and bobs up and down between pointx u;abzu2 bni5 q2s;ignk8;4qs A and B. Where is the mkux nq ai4 sg ;iqbu;52b8;zn2ass located 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 vs;yy,z4w pcf7im t5c 7fv0 9;nbu )laup and down between points A and B. Where is the mass located when its potential energy is a;7wifmv5;yp 0ct, 4y zfn9uav7)slbc 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 spri jzj7g zgeqo5*2 uogog* 5ar7q;p4x+ bng and bobs up and down between points A and B. Where is the mass located when its potential energy is a maximumxo 52o5g 7uop*qj7qb;az4 g + regzgj*?

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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 prod*w,x6hp06u/gtdkqqcd dr g une4 *14c uces what effect on the system's mechanical energyu x hp44e1dw cd/, kg6qu*gd60*tqrnc?

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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-snn,wahc d: ;1gm0s)um pring system produces what effect on the system's mechanical energywcm na)dsmg: ;nu0h 1,?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the sp+qiw)+u *ggu hring constant of a vibrating mass-and-spring system produces what effect on the syswug + hgq)+*uitem'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 w ()iw km;fld tsz9fk7z *:)eoend of a spring, both on Earth and on the Moon. Where teo f;i)9k:(mf kl*w7) dzszw is the period 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 causes whatv;a t7010jv1s4r( hionp,chqq r.zre kind of change in the resonant frequency of the system? (Assumevojn, i r1hrta0 c 0vr7hpq(q;ez4 .s1 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 s/s7( v.4zk/mjft 6 cet)gewkfystem causes what kind of change in the resonant frequency /6z 7)(./fk4 ktj tswvgcmeefof 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-sprid-e0b *v: jvfzng system causes what kind of change in the resonant frequency of the system? (Assume no other changes in the systemve0f-vb*:dj z .)

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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 consi kj08zi0w.z)(o: a mswvq9m. w 2hgqgtsts of a mass M attached to a weightless string of length L. Forio:mz0a ) (zghqw.wtkm.9 0g j28qw sv this system, 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 mm/3a1athi0j for one complete vaa3m/ 1jhtmi0 ibration

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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 h4hhdsn/ 5w b5m9 fsl.l(+vrb 3.0 m long. The period of A is T. Pendulum A is twice as heavy as pendulum B. What is the period5.4hh 9mfwr l(hs/sdvb5n+b l 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 simplefe ph /pg7a45 f0ooglj;1 /paz pendulum is tripled, the time for one complete vibrati17apg f;plj5/poeo ghza /4f0on increases by 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 pendulum's frequency if both its length and mass are i hiw l:pli06von8sn ((j3lfdu bw(.( dncreasesif w3(wd(vbou0 p hlln: nd 8i.(j6(ld?

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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 frequency of)y*kb 2jlkc2 ;j)u5 m;gglmrqx rvk55 simple pendulum B. cj r ;l lmk5g r);juqvx5kb y)2*5m2gkWhich 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 pendulum to 8 x s4bj nvxl;tlba0:;the Moon, where the acceleration of gravity is less than on Earth, the resonant frequency of the penduv a sj4xxln8lbb0t; ;:lum 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 rufah-,dpf0 w)41nxbt epresents


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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 reprecq k8:d*7r9 3, .qmdjxxraxvtsents


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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 represzz tg 1r+,9 rl9pkt o1qx-f-nqents


本题所包含的其它图片:

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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 founro4lr8d py w(:dv5)ty)t. m wcd to depend on 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 displaluv;pd lbo(1/d 0 fsubynl*f e*d5+5rcement of points of the wave from equilibrium is called the ndd;r ud0l(fl ovu*5bf/p5+yse*l b1 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 wavjl6h5m 55 hy,1erk k4k ooys5ne'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 wave passing a point per unit time is called the wav mtc(6um 8qfggq4tr3nspo bbo;:b 2 7.e' (o.rf :b t c34g;8btos umnpq62bq7gms

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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 frequen ip(ib; qi(k;cumt9 wj61*iae cy times the 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 happens to theqz u- j-a.7oor distance between successive crests if the speed reojo.u-r-a 7z qmains 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 onuu22 wmmlm6n2ja w6/r the same string has wavelength 2l and travels with the same velocity. What is the frequency of the second w2naw mlrmj/26m6 uu2wave?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a traveling wavelgiy)u3l43 y an)( qre on a string of length L, mass M, and tension T. A standing wave is set up. uy4q gly r)3l3()iaenWhich 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 ten/t0*apma).pf8 eyf ynsion T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the mass*mye.t08ffay an)pp / 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 ten fg6bb;:rg/ye sion T. The speed 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 mb:y6/gfb ;gerass?

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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 )dt/:r) d6bjl 4lblmnL is under tension T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the te6r:n)bjl l 4b/)lmtddnsion 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 wavep9c9hp izrsa0 4f n5;e is a transverse wave. As an S wave travels through the Earth, the relative motion between the S wave and t z a0f5ppr9 cse4hi9;nhe particles 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. Asi 5zwwdn )81lr a P wave travels through the Earth, the relative motion between the P wave and the particles 8lw zndwir)51 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 islzf f(y: :.(bobu n)im

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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 along q+h7u5s*fz 3:xuzvhc a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and *uz:3 fxs+hq7vcz hu5 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 positive amplib szw); 0h2s:)i jra,(kqgsratudes pass each other on a string, one is traveling toward the right and the other toward the left. At the point that they occupy tiksb),r0s:j a qha)wr2( ;zs ghe same region of space at the same 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 w5e6h3puvsn 30gq+c ystring. The one traveling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the newg y3vpc60n53 su q+hegative direction. At the point 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 fixed at bor:r -+szzho/.j uph aeha3 i,0:2xqkqth 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 tensiopfp: b7/8wu3lxr lnw.n in a violin string, the fundamental frequency of that string will increase by a fa7xfl blw/: wunp8rp.3ctor 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 seqa,c a+ cjge:1cl9x5pring that stretches 2.00 cm when a mass of 0.600 kg is suspended fa5:gc, x1eac cq9e+jlrom 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 const6f mzkuvkl zo2,.w-e5:9 euba2 y7txn ant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the amplitude?:yolea,z zwe 6u7m b.5t2kunkx92 -fv

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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 constant 60 N/m al (amhdyu *a 7*(.fb +ocu/ 6t)takodi6lc8aziong 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 bkol6i i a/cumay u catt(*.+)fdz6 7ab(ohd*8ack 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 a horizontal, f3my0b;(sxqp rnum 1 tv3 q9ny)rictionless 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. nynxqr1suv3 tm3 0qy9p b)m(; 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 qp7 iy(,/jqfi goes through 10 complete oscillations in 5.0 s. What is the periodf (7qii pq,/jy?

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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 )u3,keo+ t55 citpfrpan ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is th)3tc,e to+prpfk 55uie 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 constahmmj-) kc(;qf nt 20 N/m along a horizontal, frictionless surface. The object oscillmcm-) q;k( jfhates in simple harmonic 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 with amplitude of 4 cm. The energy is 8.0 J at thi19h(qrhok * 2 nr2amx5w, wzlts time. The mass is cut in half, and the system is again set in motion with amplitude 4.0 cm. What is the energy of the system l1 r rhz 9(a,5xw*wn2q2ktmohnow?

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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 topkw c+r 8,0pclhhry*2 a spring of spring constant 20 N/m along a horizontal, fricyr*0clrw8 , h+kh2c pptionless 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?

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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 attace+pq1vmvd1/so9g v4 lhed to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equ1vmvv 91plde/og q+s4ilibrium 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 end of a horizont dt91e 7eon) ogdr s3,.nwdol0al spring of spring constant 50 N/m and set into simtr9o lo1wd)dd.e nn0e,os7g 3ple 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 horizontaljy nzj-b.wx.ue 36 1)yk7 w0pdx a8prl spring of spring constant 50 N/m and set into simple harmonic motion wp r py.y.wn68a-73blu10 wdjxzjx)e k ith an amplitude of 0.10 m. What is the total mechanical 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 ofmc:jqoah;9waw g ).kn;/ 8 hsd an ideal spring of spring cons 9swh nk;dcogaa qw m8.;j:h)/tant 20.0 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 nb9oqz:r7 :. n,gcpesr5 iqm 4displaced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been displaced only 5.0 cm and then relea9c5qzio mps e. n nr:7,br4g:qsed?

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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 to a spring of spring constant 10 Nau6dea0 6c ywit, -ax)/m. The object is displaced bua6- ,i)60c daaexwtyy
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 10s 1 2 19vct 8gijmqx(umo7af2a N/m. The object is disp8ot7a2 gs2 j1v maf9qc(i u1mxlaced 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 s2r z sr-kq*pyp9 9u7hcpring of spring constant 18 N/m, displaced slightly from its equilibrium pos cr7uzqs y*k992p-h prition, 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. It e* tx 4lavv *(x0cnyo7ji7qe(oscillates at a frequency of 1.27 Hz when displaced a distance eo(7*av c4q viltxj7 *(xy n0eof 2.0 cm from equilibrium and released. 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 )ackt r)x 0zw8y7l. d g*uxa.yA 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 ) ya07xa..y*rl t wug8cx)zkd 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 ma( nh-hobixj h(r;on70 6fmq.iss stretches the spring 2.0 cm downward. The mass is then pulled an ;hqihnh(-f.i (oj0box mnr 67 additional distance of 1.0 cm down and released from rest. Calculate the 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 stretches th kkf4,+b2yl5td j4j 0mmmkmr;b rdu:4l+b mq9e sf ky02+mj m5dk;4mbb:r+rl9, mbt4jm d qu4lk pring 2.0 cm downward. 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 8 j t.oacl unjg9*4z:tthe spring 2.0 cm downward. The mass is then pulled an a8gu j4ot* :a9ctz.n jldditional 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 follor wpn a hf-2b35medv44()rd tawing position versus time equa2bf4 ahm3t-e)4rdwv 5n( rapdtion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 equ*wibi 01ibfn: d3u9jqatiq*1 9iib0wf nb u3idj:on:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 folsj (;:iobzqhy.yj:q5 lowing position versus time equb:oz. (; j ijh:syqq5yation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 thzdm q)+r/hngah7 b ,n6e free end of a spring executes simple harmonic motion accorhb6n +mqg,r z7d)nah/ding to 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?

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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 xpw2xw gywiv)v d:no,.*d9 ( ;wti3jra force constant of 20.0 N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is releasn ywrdvi vow)x3*.2 (pt9xwi ;,: dgjwed 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 yvg t*0 *s8egeits frequency and periot8 eegv*gy*s 0d 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 peri:2j.g cqzqmp+od 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 o-4iandu2p ;m4rv q4 utn Earth. What is 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 ;h9nldcs:f1cbqi mf)*l83 gyperiod on the Ea;m)nfl:q*b8 sl9iyd 1g hc3c frth?

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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 long. What if;s. qz4 ildv*s its period on the Moon where the acceleration due t 4vdzqfsl i.;*o 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 consists0gby dsv.2fa. of a 0.25-kg spherical mass attached to a massless string. .2fda vsgy.0 bWhen 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 a j.bue*- v 0q+oqpc;skzd*jt(20-g mass has initial angular displacement of 8.0e. It oscillates with a period of 3.00 js-jc+vp b q*z0.;t( dokue q*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 ym :s shj4mqk/kx52)1ilxh5-v l 6bswat a given time. The frequency of the wave is 120 Hz. What is the ampl hkkmyh 6xb/2swlmljv:s1q 5-x 4si5)itude?


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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 give /tb;4/ fsuthsn time. The frequency of the wave is 120 Ht/;4 hsut bfs/z. 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 /b xo:a+qgz00wte-qy " of a wave at a given time. The frequency of the wave is 120 Hz. What i/00-txq zgea:+ obw yqs the wave 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 o3nr(n f 3xjwk8f a wave which has a period 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 a wave with a frequency of 1500 l y u:8a,egja0jjf43m 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 a wave has a frequ, tapfp ;j t873rtp)wzency of 12 Hz and a wavelength of 3.8j3pa wp)7;zft ,ptrt0 m?

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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 wavelength of 3.0 m and a frequ0/oi+ 5rje r cq*/n 8-qeozendency of 1ndc*z orie+q58/o - /ren0qje2 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 travelg2b2vxjk.n vdp 8(+ya2h :gu wing 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 d l;4fap(um r.tension of 1350 N. What is the wave spe(uf.a4 r;lmp ded?

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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 :l.yo2*wp 7m*4( pbuob4lcxmd ga )t vg/m is under a tension of 180 N. What is the velocity of propagation of transverse waves along the spo:g)4x*.uy4dlmmwpbtvb 7 aco (2*ltring?

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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 5if15cos6gd:iw kz g//lv 6to8) n;doc 00 m long wire whose total /s igwk6d)l;c 1difzo6oo :8/tvc 5ngmass 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 transverse wave on a 2.0-m l/exys7w c-sp)v;z r p;ong string fixed at both ends is 200 m/s. Which one of sw)ppe7/;vcz ;xyr s- the following 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 fundamental frequency of 500 Hz, which one o9wkc4 f-tq0dc f the following frequencies can set the string into resondw9 -c 4q0tfckant 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 in)ue0hl ; ;jv 0,quqscg a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wave with fiv; lqqgj) v0u e,hc;us0e 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 b2y :p3l qo hik-s dmpwb5x882a standing transverse wave pattern contao8w bdsqhb3i8m2:l -y pkp 52xining 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 tensiogru0y xw0 x./cn of 20 N. What should its length be if its fundamental r uw /x00rc.gyxesonance 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 harmoni6zt *h-u qlm,ics of a string of linear mass density 2.00 g/m and l*qi- hz tl6m,uength 0.600 m 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 strinndnf 7+wf-u()kle8c kjy gs/al -4y:wg vibrates at a frequency of 85 Hz, a standing wave with five loops is formd-w fanl:-sg8 7jk+y w4( nkeuyclf/)ed.
(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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