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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 callejq)cabh9cvqg;t*9 c yj 93 zg:d 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 nua:+(g y0m(bdk)vtrv ymber 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 displacement from the equilibrium point is gedj3dk t.( wtbm (e28called w3m(eg(dkbtjtd 2e8 . 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 isr9u0357p uquxddl d, o at its maximum displacement ld5d orp7u0q d 3u,xu9from 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 m0 r y0ln5-5qk8e5i4rqcfd,6tcb jh xthrough the equilibrium position, its instantaneous veloc l- 055jm rd6yqbtfnc 4r,8x50icqkh eity

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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 undergoesz k*d qw6rin/* SHM. When the mass is at maximum displacement from equilibriuirn*w/6*kq z dm, 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 vertical spring and bobs up and down bet-jqf3uge 74l+hjy+pyag o t.:ween points A and B. Where is the mass located when its kinetic enerfep .o-7jty4q+:jlgga h3+ yugy 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 pointe.rnkjm84+huw 3 h+rvs A and B. Wh4hnmwr jv+8eu + h.r3kere is the mass 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 up and down between poij6 wsl/x(. jf i8e k yhjq.l6ceo9ubt:5o3s z8nts A and el/:q5y3oujs. t8hs.6fxcj jb ewk8oi6zl(9B. Where is the mass located 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:-*.fak f qlmh m,espkzwjj4-;zx1z ) up and down between points A and B. Where is the mass located whehlz pmexzk,-* mzjfjsk)w4f.qa -1:;n 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 vibrating740v2px)imqx3x i+ag; bjqvd mass-and-spring system produces what effect on the vq7bm4x3vjqgi )2px +; x dia0system'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 j(-ti7dra ,asof a vibrating mass-and-spring system produces what effect on the system's mechi7-(sa,ajd rt 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 vibrating mass-and-spring systef tx ;(ce40sxhm produces what effect on the syste;xfh0txce( 4sm'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,ik f1)8att ojfmp/+t* both on Earth and on the Moon. Where ist+pkij fto)m/8 af1t* 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 sq;l9tt+t/f (l osvw 42bz2bqwystem causes what kind of change in the resonant frequency of the system? (Assume 2t+ w/wql b sfbolq(4vtzt;92no 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-awuj6hh a1di omvvd.9i7h ;q; k4kn+) znd-spring system causes what kind of change in the resonant freqkv n+ qa6;4kw 9d7z.)1iuojh; mvhih duency 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 kind of c87o sj*fh slq 0zp9+uyl n;fv(hange in the resonant frequency of the system? (Assume no other changes ins9fp+nh q(s 8oylv;*j0 7z ful 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 of a mass twc wa:i1a1jn t*m0j3M attached to a weightless string of length L. For this system, w30wctaa1 nmjt w1ji:*hen 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 simfvx9q7-.gs s2cv-)gk l,.how4iu sm mple pendulum is tripled, the time required for one complete visms-i,h9w2q.g7kv-) l4mcfuox g s.vbration

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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.3sh9qgdj 7n+w The period of A is T. Pendulum A is twice a q9h+3dgns7j ws heavy as pendulum B. What is 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 tioe, dy(wt8d 3of7lf n;me for one complete vibration increases by a factor el,w8f7o;y n3dfo (dtof

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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 ma12:0sdkbslx 4 m5vz rdsr(ts nk yxm1.tc -*s+ss are increased s-zxs kvymdmr 2xd40+bc(snt tk15s *.1ls: r?

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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 twif ruqi4d24u /nce the frequency of simple pendulum B. Which statement is correu /fidq2 nu4r4ct?

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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 tnsky iznhw(g/)*t.j 49q/lwo+ gn. k eo the Moon, where the acceleration of gravity is less than on Earth, the resonaigtne )+/nl s*o.(.wzkhgj/ w n49kqynt 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. 11-1 represezs5e4g4zs//9yd n9iswat fy7 nts


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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 rep ocd0js*mgs7 ;k v).ipresents


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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 ricc., p:g i3+ndy7epuepresents


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 found to depend on twkqf( )ioxiv07 fmw0 c gnxc++x8q1h8he

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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 6h )of nlzx96.s4tyempoints of the wave from equilibrium is callexfy4.6oe nz)9m lst6hd the 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 th*l+ua gk.l hwx)98 zw)pnc(s3 0bkith e wave'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 calle k(e0rijd1q5/it a5 /q9cvqp cd the wave'tvc/c5q0eii9r 51 jpaqdqk /(s

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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 wavelength8)xvmg)sa(ps j n )wev--js7 y 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 increas -)zzu9d8x vb3 vndbwl-s0 3yxes. What happens to the distance between successive crests if the speed remains constayb 8s3 zv9 uwd3xvnd bzl)--0xnt?

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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 frequengzs 8:/p7sb s wmsyy*5cy f. A second wave on the same string ha p7 ybz8*gs5sss/m:yws wavelength 2l and 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 tensioh 6svz dkolc8) 0 -/vtqta4+ejn T. A standing wave is set up. Which of the fol+4k o-86)hla0t/e vzjsqdtc v lowing 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. ea7kscg,ru y+9nyw/k; -jjp .The speed of a wave in the string 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 chana9p; 7+-/kw ju yye.ckjs,rgnge 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 speed of a wav(w vmifr,v-7h e in the string is v. What will be the speed of vi(mr,7f vwh -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 a7jct23*;g6dx q o lblhnd length L 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 tension is increased ldq6lc*oht 732 jx bg;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. As an S wave travels tr4i1i:32u bi s oyd*tmhrough the Earth, the relative motion between t d4i tui o*2iybmr13s:he S wave and the 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 l)/bsyapomw5-6md4c o ongitudinal wave. As a P wave travels through the Earth, the relative ms5-oy b/o 6dw am4pmc)otion 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 xutcmbgi2 *)(r n-w+b 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 rc3vh g/bgsfg(*,+ fe zight along a thin cord reaches a discontinuity where the rope becomes thicfgh f,g e+/v*3czsg (bker 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 positive amplitudes pass each other on a strinh )-ck(pz. slxpwa5 jw( vwi2ui8:1yfg, one is traveling towa -ifa h1w(yc28lp)x5.j (k pwivwz:usrd the right and the other toward the left. At the point that they occupy the 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 string. The one traveq), bbv6ezj g+v el+9kling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the nek9,zebq)lgbv+6 vj+e gative 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 st--lnotx. bzt5 z8 fy1nring fixed 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 tension in a violin string, thxkdo qqc4:4j,s)en (: hue)j ke fundamental frequency of that string will incrd)u4x:qsck hjonqj)( ee4 k: ,ease 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 spring that stretches 2.00 cm when a mass of 0ec;vp h)/:ko v.600 kg is suspenpv; vokh:)c/eded 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 constant 60 N/m along vl0 f(xa;j9pngl4ao3 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 io;4ajv a3n0(xg9fp llt 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 constant 60 N/m along a horizontal,xtxe) n e-68 z)cy;gat frictionless suz-tn ex;)e g)8acx6yt rface. 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 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 sprin)rdo7fg2kck c wq/ 01wg 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. Wwofkg/0d1c cwrq72 )khat 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 uf/jy zitg/c g292mjwo,h (1 xvndergoes SHM. It goes through 10 complete oscillations in 5.0 s. Wha2 i9,/x(yz v2j 1hwtog mc/jgft 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 th1l8 bwcx3yn.l2ew2t5chr 6rfp9c e+8b smhh1 e free end of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is thew2xm12bs9c 1e nepfth8hcry35 6 hlrw c.+8lb 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 horizonqlev ; u47tf;ltal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the eq q;;4v tlf7uleuilibrium 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 4 :ed4(mcl8c h qgh deo/fm1h(v.6yty8.0 J at this time. The mass is cuty:fcyv .o/ 4 h(d(m8hd t1gqeml4ceh6 in half, 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 to a spring mq0vh0j e7yswry)n/w5:jh .gq up8t,of spring constant 20 N/m along a horizontal, frictionless surface. The object osciy tw5 y,h.)whe:qsp70nu8jm0q v /jgrllates 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 attached to a spring of spring constakgr px 3nbgw6 6k2uj:(nt 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. At what lop6 u( kgjkw2g:6xrb3ncation 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 sprai/jyryq23zt s*/ 8 mding of spring constant 50 N/m aj2i/3t mrs 8qdya *y/znd 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 const:s0 -0 r0g;uazqauofz 4spl7 aant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanica0 sa;u07lu:sfg- zaaro4 pqz0l 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 thog7 t xu.p43 ,ke1pdque free end of an ideal spring of spring constant 20.0 g4,tdep o3u. p71k uxqN/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 displaceh,u-l4 ff9v wod 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is olfv,u9h w- 4fobserved. 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 tsn wfh ka55 f(wy3 xe-;ju/9vbbqzd d61-kz4 do a spring of spring constant 10 N/m. The object i d-6xjkb9 ewd4;3fn5a-yuzzds(1kwfv/5 qhbs displaced 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 sn,ppsq *;k -9ln i9k21xvb uatpring of spring constant 10 N/m. The object is dis1 b9vnip u lksn ;2*ktq,-9axpplaced 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 sprinw 706yz sjf/wh,*i(ybek ys;h g constant 18 N/m, displaced slightly from its ei7y yb zk jfw(;0hyess6,/w*hquilibrium position, 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 oscillates at a frequej+*ct/a*q xr yncy of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum vex a*yt* r/+cqjlocity 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 0e.8 feas +vlyattached to different 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 a frequency of e f80yaevls+ .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 equ,v*6 av4sci ,ge9) r eb,wtdhsilibrium 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. r 6es,iwhagd s,)* 4c,tvevb9 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 stretc:q1)n,rxnvqp z9;ip xnl9s q;hes the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released frz;9xn)9pq;p xv1iqs l rn, q:nom 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 equi4x( nofx*0.o jai6o.s.zm 7;xlwjswslibrium the mass stretches the spring 2.0 cm downward. The mass is then 7.w.0 ml.6 4sisaof;oj x(oxnwjsz*x 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 vt ) snho .yx6/h e0q2el0jj y40tqwx5oersus time equa0 eqyj0xy ) n 6qttow4lxej so.h052/htion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 timdj9 ty gm 5,na )7u9xlnoz4bp;4du2vde equbpa4g du5tz9o)dl m7 ; d,4ynvuxj 29nation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 position versus time k.x smiw8i +7sequation:s .i8+ 7wkxsim
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 executeo j;9m;zg5zryak:c csbak : 3v/myf1;s simple harmonic motion according to th: m aav3zo9 g 5b:czr;;s/1yy fj;ckkme 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 a for0+ i1crtub7 aace constant 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 is, the spring iscb0 a1+ar7uit 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 f it)25ukrv6x erequency and period on E kx vite26r)u5arth?

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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. Wha.s. f(s*l,zlub/r e jvt 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. Wha12s(ro0xmm.h e)b isbt 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 period o oe4 xyuz2,wjt95 a3o7e z.uq* d1uqnen the Eate3wu oau2 . 5n417,*edxqeo9 yjqzuzrth?

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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 clo cv zgpf,mc 8 zz;c8jom./aq9cxk86;tck is 1.0 m long. What is its period on the Moon where the acceltz cmc z/cc pq,f9kjxo;8a8 .gvz;m86eration 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 0.25-kg 1 0mg/ sok/88sbbquhpspherical 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 b8sp8hkm0/ s/gb qu 1ofrequency 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 20-g mass has initial angular displae-n;y cxip2g0 cement of 8.0e. It oscill;2i-pgxy nec0ates 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 at a given time. The frequency of the dk6npe:itgz5z:;go9 )m g vf8wave is 120 Hz. What is th:pggzm69fd8t;voe n i: 5k)z ge 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" of a wave a0bh /w6;mspjx rpq6-m , rg;lgt a given time. The frequency of the wave is 120 Hz. What is the wavelength0x; lpmb ;mw -p/s rj,rg6gq6h?


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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 ,sp0-cdj( odx wave at a given time. The frequency of the wave is 120 Hz. Whod(-cs jdp x0,at is 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 of a wa.5p0 ;yd gokkuve 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 frequencydm i lin v/lwu)v/u)91 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 a wav:)2; 32iojzwgd+6bj nut vz see has a frequency of 12 Hz and a wavelength of 3.0 mjs;wzo)bdj226u n v+zt3g : ie?

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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 hassdscqb;rp/ r g3-ty-+ai ze).b 8u4bc a wavelength of 3.0 m and a frequency of.ubdg -is bsc8 3ct;z ep4-yraq )+/br 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 traveling at 1400 m/ :a s7g m*lgle9,ng(las?

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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 kgrcxu7dbr5jms xx.24; /m is under a tension of 1350 N. What is t52;74 rc.xxxsru bdmjhe 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 under a tension of 180 p kd 932p:h2so7edhpe N. What is the velocitshdp:3d9epo2kph2 e7 y of propagation 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 wavelength is 0.500 m is traveling down a 500 m long wire whosehfk 3jgp/ n:h;4dtu e* total mass tgn;fehu *j: 3k/ hdp4is
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 long string a 5zaimc.7px0ru5:t ubv6i )a fixed at both ends is 200 m/s. Which one of the following is not a76tmi x )uiruczba :v.a55pa0 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 zffg )rs 3ru*,of the following frequencies canrs3 )fg,zu rf* set the string 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 four ej7;3v rw7+rjt,xrh. md5idh r qual segments in a standing wave driven at a frequency of 480 Hz. What drivim,x h+wvhrr7d 5r7ij; jtd.r 3ng 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 withbp2 0no2tbbu3yh .gn/ a standing transverse wave pattern containing 3 loops. What frequency is needed if the standing wave pattern is to 3 bng2n y0./ot2bh pbucontain 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 g4+i/khwhy)b jtq),v a/m is under a tension of 20 N. What should its length be if its fundamental resonance frequency is 220 Hz?/4hh bt),ywak+ )viqj

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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 harmonics of a string of linear mh6 ll- 8 7vnjc0jrja+l2le*a iass density 2.00 g/m and length 0.600 m when it is subjecternih*a -l0l82la 67vecjj +j ld 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 vibracmsu5(mu/m5 l tes at a frequency of 85 Hz, a standing wave with five loops isl 5mm /5suc(mu 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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