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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 proceq ak:7pllo;mtlo2r, 4 ss is called 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 cycles psyjfv1ua e4 3x3x5tv1er 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 o(q/z s40hd-oyt9:s0co:dmvto zji/ , the maximum displacement from the equilibrium point is cal /cyo : oqo0zids 0h(9d-v4o/zmjs:tt 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 SHMonmc hg*+mf; 2. When the mass is at its maximum displacement from equilibrium, its instantaneousc+hmfg2mn; *o 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 und2eg1s9mq-gpe80iecr vndb, g /5p 0siergoes SHM. When the mass passes through the equilibrium position, q 1mgp , 8vede5-sngr09c0s2e/bigpiits 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. t j4u7n o5n9isae .mj2qpfx*8When the mass is at maximum displacement from equilibrium, its instantaneous accelerm uat 859j.ifop4e7j2* qnnsxation

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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.tq -o5wavv7azj9 an(obs up and down between points A and B. Where is the mass located when its kinetic v-5z9v a7na awt(qo. jenergy 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 beijzdb+ p4wf y0x5c* 47a:tivwtween points A and B. Where is the mass located when its kinetic energy is a maxi0p 4xa *bdvic y 5:+jwwzf4i7tmum?

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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(d0f*c+a,swlkzkst zi2k i:7 up and down between points A and B. Where is the mass located when its p tz+(d0 cfwia7l,is zks k*:k2otential 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 betweuz5ax61e( 8yw,zdm(zdb u vlam7 -pb7en points A and B. Where is the mass z(1 ,z5lza7a d7- bmyuu dx ebv8pm6w(located when 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 vibratinzn)bswd/f sd zi(-y3l8ty(- tg mass-and-spring system produces what effect fsz)bs-/3 (wtnydid( t 8-zlyon 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*h,nvjrz0 zhf16 2ih, r ha*xy vibrating mass-and-spring system produces what effect on the system'sh*0a * r,nj 6ih2hyz,hr1 xvfz 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 vibratinn v(u 5xau(0ylg mass-and-spring system produces what effect on the s0av(ul 5xuy (nystem'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 Eartov f h75q2 3vtdtya+: (7rdxgnh and on the Moon. Where is the pn7 ttvorgx(y:3h +25dvaqf7 deriod 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 cauw wmb7lprg..cf1 *xvra 2;3o,y.iybgses what kind of change in the resonant frequency of the system? (Assume no change in the system's ml wx.r y;.gbvfoi.7 21wg3m br,p cay*ass 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 chanq -emndww :f2 0ubn(qpsv4 nic7,73lnge in the resonant frequency of the system? (Assume nm (4fe3nqb,:uw7nvw p-2c dl i n7qn0so 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 s mrv1)vz 0/rl vcu/:vrystem causes what kind of change in the resonant frequency of t /0 rzc/mlvrrv)uvv 1:he system? (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 co :d;um(j-qfbf nsists of a mass M attached to a weightless string of length L. For this system, when undergoing dmufbqf:(-;j 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 one cn /v7. hxd6yqf)0 0rbner6o/olg8 uppomplet xn.8rfnprohe0u )dg/60/lovp76yqb e vibration

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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 3.5 fhk ;efdc c-+-ymf+l0 m long. The period of A is T. Pendulum A is twice as heavy as pendulum B. What is the period of B? lc-+ky-+mhfe5;c dff

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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 coml;s6u2(n xawq plete vibration increases bl2qaxws ;6 (nuy 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 lenguv .d-t)fc1 uoth and mass are increased. ucdut)-v1o f?

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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 bwd5:y,umw,mbr8 pl3xack and forth at twice the frequency of simple pendulum B. Which stx ,,rb:wm58 ulydwpm3 atement 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 the Moon, where the acceleration of gravity ic1uwfovm-7 m. d9y6pzs less than on Earth, the resonant frequency of the pe9-ym ozwcm6.d7 f1vpu ndulum 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 r7v;xqgugb,i e92bg/ e 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 re zk yil/7r a3q78chy r3- zlc2o2tzfv2presents


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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 represenvquzv t ,7 2w31zu;x r9m.zksgts


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, th hbwr*9ju- axy1s*6ree amplitude of vibration is found 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 displacemenbpjknr79.d p;8o2di yt of points of the wave from equilibrium is called the wav2jrnkpio yd7p b8 ;.9de'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 calles*. 2g 1bpj(uv3keibz7zu o .kd the 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 pcr c ag53.fgbps2f)9ger unit time is called the wave'32pb.g cg) 9fagc5rsfs

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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 tim2o, ,uav-8 stlcmjpy7es 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 the distance between 9y rx+w- bz2hzsuccessive crests if the speed remains constany +z -rhwx9z2bt?

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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 wavcj(;vp7tt im+ (cc.qwelength l and frequency f. A second wave on the same string has wavelength 2l and travels with the same velocity. What is the frequency of the second wa qmv+ 7citc.cw((p ;jtve?

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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 t;jn n(*yuxf 9g-xpgy/ ension T. A standing wave is set up. Which of tux;g n( *y/-png9xfjyhe 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. Thenx n:ggw690+gk lu 4te/afg++ba og :s 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 n gesbk+ 9n +glwxao:g+f6utn g /g:a04o 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 ana:rd7b(kkzs , d 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 length isa7r ,: kdzsbk( 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 tension T. mvld5uab 7sm:m*3y ygb41 d3t 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 to l5s y3:my3ga*1m4v7ub t dmbd2T?

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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 atjdbrrcc ,61 ev8*kg ( transverse wave. As an S wave travels through the Earth, tht(c b* cdkrr6 ,ge8j1ve relative motion between the 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 longitk7-14gz auhkl udinal wave. As a P wave travels through the Earth, the relative motionu1 l-khzak 47g 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 istppccwxv9;w dau54 52-z dx w-4euri0

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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 a thin cord reaches a disc7 i3/wc b rs z:bf5s2oim;olwwu-j2t ,ontinuity where the rope becz,oj sil227iurom3: w b;w- /tc swfb5omes 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 positive amplitudes pass each o+o+gw 5 f3zzd0qdtd, jther on a string, one is traveling toward the right and the othed05zwdo j+ fz,q +3dtgr 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 traveling toward the ri v*v*h. ,9 jpyhe6toy+kh7tscx 4f gm,ght has a positivh c7 y*ttogsx.h6 e9my j,,*4p+hvkfve amplitude, while the one traveling toward the left has an equal amplitude in the negative direction. At the point that they occupy the same region of space at the same time

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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 5tnscxepa-6fa a(v-yo8 . h 4j- xz8y3wq vny/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, the fundamental frequency of t7 h5 tk9 cnc19wlvni/+xh/tawhat string will increase bt9wchn1 9n7+lwh a5ki/ xtc /vy 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 strcxu od-.atu4g0yg;nrwdt .. *etches 2.00 cm when a mass of 0.600 kg 0 cx-.u.d4*;d.twg rtaynug o 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 coni a(1;vp;:kwt4lx 8kmo z-rksstant 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-ai lmxt4(:sp 8k vw;ozk; rk1 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 constant 60 N/m alongdv5iw onp.i-i-g 45 mad9vsz9 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 th5d 4 s9w.-pvginaovdmi95-ize 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 spr4beo fm/-w;hfing of spring constant 60 N/m along a horizontal, frictionless surface. The s4hf;f /m-bwo epring 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 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 goes through 10 complete oscillations in s(:tg g61 jk, bn;4s frfbkh2u5.0 s. What is the p gbk6hb 1,4n(:sr 2jfg;kutsf eriod?

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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 sprde)e/evc 6kh ,.4y ).qs c7gxh3mqgte ing 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 from itcq hk /.7.)hdm,ey3t c)6x4evqg ee sgs 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 )ye+6xjg; hz ..phq+mcdm 8dhspring of spring constant 20 N/m along a horizontal, frictionless surface+6mhcd .hmd.zx he;y+) qp8gj. The object oscillates 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 this time. y)0v:ig0+mpcdin- hwuoi) o- The mass is cut in half, and the system is again set in motion with amplitude 4h+ u:n ig)-ivo )o -0wmcipyd0.0 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 sprt lrpn;bk0m.c))8ejs ing 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 equilibrium position. What isms 0c8j )kbn rp.l;)et 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 constant b pxztox2s 8.)20 N/m along a horizontal, frictionless surface. The object ot2 xosz)bx8p.scillates 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 end of a horizontal spring of sjicgvn/4pnge56h c/ ) pring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanicalcgen6vp )4jnig5c h // 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 attachedqnsdc3p +as01 to the end of a horizontal spring of spring constant 50 N/m and set into simp3pn+cda s10 qsle harmonic motion with 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 f+sl4 uq0fcc)) qoib* end of an ideal spring of spring constant 20.0 N/m with an ampl+ si0bfoqcuf)q c4l )*itude 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 from its equilibriuxjn094 r +: 7cc y5sk-pezwmjpm position and released. A frequency of 4.0 Hz is observed. What frequencj-mc x7 zyrp pkc5 wejs+n94:0y 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 attachcp 5f +nnhzj ufd:30k/.t*syh1 mead 1ed to a spring of spring constant 10 N/m. The object is diau phtfzn131/ce:d k y+n*fhd0s.j5 m splaced 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 obskf s)4(oxbu7ject is displaced )o 47 xsfusk(bby
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, displacg ck:fy +ooj9y 9jfb5-zp+x +b ;vfd9red slightly from itsobfd9;ybvk jc+gz:xy59foj p9++r f - equilibrium 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 frequency of 1.27 Hz when dqm*.5(xgi b0sidbs6pl p:il 7isplaced a distance of 2.0 cm from equilibrium and released. What is the maximumg.sqsbl(p750ib6md xl* :pii 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, a,h n 9d/hnsbvo2/8c :kclzkj*re attached 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 16 Hz. How does the maximum sp8vnkhc*j9b/z,c/d l:s onk 2h eed 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 s6nwp i/ethh 0b tbe9fz3( s(hkl,g3,q pring. In equilibrium the mass stretches the spring 2.0 cm dg te,(,(6w3qbbz 9n keis3l/ft0ph h hownward. The mass is then pulled an 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 thexj79omq 5rlz1 mass stretches the spring 2.0 cm downward. The ma5jm9 rx z71oqlss 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. Ir0py i wau*mu */7hr,cg3e n5djy5m) qn equilibrium the mass stretches the sprirpyiy rdu m,aw0nuj5ge/) *q7c*h53mng 2.0 cm downward. 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 harmogd 7uzqh4 v3n +zgz(-jnic motion obeys the following position versus time equath4 3qggjdznzv(+u 7z- ion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 timindzbb+1/y g)e equatig/+b ibn1dz)yon:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 motionbcv0 n2yn k/f7 obeys the following position versus time equatio2ckn/ fn70yv bn:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 harmoniu 2 zvn,e2x6y6 in.lj t)q/fzfc motion accorlzzej, ytfqi6n 6 vn /)x.f22uding 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 a force constant of 20.0 N/m osci;ozx9syq grq,t61ot 7llates on a horixq 79ts 6r1q goy,tz;ozontal, frictionless 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 frequency - h6yzinn. 8clwg+)b eand peri.+wcnbgi8)nh-yz l e6od 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. Whvi5*3z7 tysqd at 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 itnfpjsx: 0dh. u0pc,v8 s 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 qvj*1 4 mxbk(klong. What is its period on the Earthbxk v* k14mjq(?

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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. Wha2m:rp ye82/ ump9 bfjgt is its period on the Moon where the acceleration du2p:bmr jm829 yufe/g pe 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 spherical glh+4rbp xrd xmna+; .k(n/+ wmass 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 diameter sphere) had been attached to the stringbx;.lphran+xmn+ dwg ( rk +4/ 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 /mv: 20rwp fze3sulnvix 7+d, mass has initial angular displacement of 8.0e. It oscillates with a period of 3.00rp: wsm+3i/e,zx7 0ldfn2 uvv 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 f gvj 9l0ldx+ ;awzc(+ubq0 /xrrequency of the wave is 120 Hz. What is the auj(+xw vd/a9r0;zl bcq 0 gx+lmplitude?


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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 time5;cer+wmk ilp8b - :wi. The frequency of the wave is 120 e wm kcr8b5;:l- piwi+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 th3(u a .onlgbu/u mdt 39,qyk8ke wave is 120 Hz. What is9 n.umyaotd/3l3uk (,q8gkub 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 -d.i- *qwqu9dpy*a ufh(4i gsve 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 wsbglfm 3o0z4zw6tv7h , s8 xz8ave 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 a wave has a frequency of 12 Hz an7l c9rehi+6f;ld t;rc (erospk3qq)* d a wavelength of 3.0 m i79)pc+cqd sk3r ;6tqh lrro;e*l e(f?

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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 wa 22++rtus6yw0j ovs ukvelength of 3.0 m and a frequency of 12 H2 y6s uvoskt20uj+rw+z?

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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 1400e* czw0:; xu -l 8d(vytifu6xb 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 kqnpx la -3i8qggm+(k1;(m *ivui .unbg/m is under a tension of 1350 N. What is the wave spee-nbg. p;g 3ui8qq*+1m (an ( mivulkixd?

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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. What is tg2d7 gkj4xmq( he velocity of propagation of transverse wa gx4(7qj2dmg kves 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 triie89lxi*sho. (6 eviaveling down a 500 m long wire whose total mass iei8 *ixso (lh.iev96is
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 fixed amvv 4ooks0-ke 9, ag.at both ends is 200 m/s. Which one of the following is not a resonan-ek0o9sa v ga komv,4.t 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 freqm2u eq. 5.hgjyuency of 500 Hz, which one of the following frequencies can set the string into resonah5.g2eqm .yj unt 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 i,n ,oir/ k qas4tq)ar;n a standing wave driven at a fqsq,/ )a,ak; to 4irnrrequency of 480 Hz. 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, 3 :w6s2x ll3:jauxwg pvibrates at a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is need j3u::3all6 wwxs 2gpxed 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. Whau tq5pn+ 1 l,wl2mr-vmt should its length be if its fundamental resonance ,15mr qlulv2+mpt wn-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 harmonics of a string of linear mass density 2.0jr6,xac.ub0n3;hcpilxkt+. / 9ij v z0 g/m and lec.xvin3cli/rx 6 .;b hj0 tkp9u+a zj,ngth 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.*ty*0ns+do 7brva-v3x7:lr cylf; dd When the string vibrates at a frequency of 85 Hz, a standin+3y*o ysf;l:rd*a vxl c tvd-r70n7b dg 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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