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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 9girz 4py3 4v)/gzpbjof a periodic process 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 procescokd-:0/p4bqcj (b ffs, 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 max,t(llblj9 c b7xpm3ettok 7 69imum displacement from the equilibrium point is cale( o69kt7ll3bbjx mtpct 7,9lled 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 S)nu0 xg bn5lz-HM. When the mass is at its maximum displacement fro nb-0)ulgnx z5m 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.rdv zexaa7812lzp0ov 8k du1 SHM. When the mass passes through the equilibrium position, its instantank.2aolaz1 81dx edv8 70uvpz reous 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 vjld)e9qkiq4 ks. yx)y v ka o5.8-r(wdisplacement from equ-dv4oijeqkk)x9s 8) r(vwy.5.qa l yk ilibrium, 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 verti ritv(zdpufclq-i9 g2a 5;ht5+fi 4k 2cal spring and bobs up and down between points A and B. Where is the mass located w 559q i2 g c-r thk;tu(f42ailf+ipdzvhen 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 points A an 8t4q fu5ipqw/n ;uzl(d B. Where is the ma/ u5f 8qn4lqw (it;zupss 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 sp -6 f q/jys,7lrenqn:l.g*uu jring and bobs up and down between points A and B. Where is the uq fy.g- j 6nu*ll/7eqsn,r:j 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 bo)3r liy.n)izaw4q:fs bs up and down between points A and B. Where is the mass located when its potential z)4:lna yrq)isiw. 3fenergy 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 ampm uf3wt2 w+qrfy8.f1 blitude of a vibrating mass-and-spring system produces what effect on the system's mechanical enytm3 8rqf.u2 1wb+ff wergy?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the mass of a vibrating mass-and-spring system4ab92y i:9g/cbyin dgj66udj produces what effect on the:i bj/yg 4iju6d6gy9 da nbc92 system'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 l(r abw)hsh2j *cj.8uproduces what effect on the sysjwrah2 s)b l8j(* u.hctem's mechanical energy?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass oscillates on the end of a spring, both on Earth x ch5 ok004n 7ko8orxcbam(: iand on the Moon. Where is the period the greocrm:n07hi 0k4kxo 5o8 axbc(atest?

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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 cai/)b /icxgti (1d195qqcq5 m2xdkrdhyuq09r uses what kind of change in the resonant frequency of the system? (Assume no change in the system's mass d/hq1/ qq di59qidr509k y2i(crbmtu g)x 1x cm.)

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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 ofldd8h sjjxp pbig*u6: f a4-06 change in the resonant frequency of thp4uadi dp j0jhfb8 xl- *sg:66e 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 change o8ttyg 7t5d2h/9 gpqpqx g ;m7i/tqg pg to5d9;q tp8ym7x7 g2hn the resonant frequency of the 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 consists of a mass M attached to a weightless string of+gzb dq.-jh8dvnnyd y p2y5o(;a-c.l,2jr jh length L. dh.g njy2q dr jl8-v5 2n.y(- +h djy;obacz,pFor 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 timt4+ce nar1)xre required for one complete vibration rn)x t14c+aer

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Both pendulum A and B are 3.0 m long. The periob)qkq v:i9br r:.c7zj d of A is T. Pendulum A is twice as heavy as pendulum B. What is the pec:brv: j9brkzqq i.)7riod 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 simpl .rv8qi kwo;+nj.k r2iht, r7c+w* gire pendulum is tripled, the time for one complete vibration increases by a factor r7+w.kh*r,t ii;jwi+r 8c q2no vrgk.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 fweepq*710 )g8 jo 7v x0w3cmicag5rqits length and mass are incw8e frciex75o 7 qgwm3p* q1jv)c00gareased?

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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 frequ:ie5xlcxk u r7v.w5 rue4+pm)ency of simple pendulummvp5 :e +5x.r)ui7ekclwr u4x B. Which 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 pendu:fk90 5 4eb(ej)9sta2fw l dk-smzpri lum to the Moon, where the acceleration of gravity is less than on Earth, the resonant frz )e f2bwki9-f0d(r9pjs5m 4:a ketslequency 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 repren7jh+omiy(l0gd 2 m0bsents


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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 repr0stespe 3(q.hesents


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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 represen1;cdzxqioz0l -dnq 7 .j.*cl xzr/u- lts


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 depe c+z f,,yrhr7nnd 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 displacement of points of the wave from equilibrium is ca:g j7)znzrzqjbus4 : gpm )v3,lled thepv:m)ng,zjg7:z rz)q sj 43bu 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 r0 ow4.qzot f8tx,+i yemc::cthe 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 called +nigjx(beawi is p 5wt,w3 l6 q)gl;67the wave'7qgljwpb+( iatx;,nl ii) s5w6ew63gs

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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 th 2nt(;u m-tgrte 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 happea :, k;y8uujqpns to the distance between successive crests if the speed remains constka;y,ju p8 q:uant?

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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 wavelee3n90y* qoea5/todqf) ntw*lngth 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 /)nyq* 0l*d wq9o ef 5ta3tneosecond 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 tension7/z aq /9llwsbjvffi3t: p)p1 T. A standing wave is set up. Which of the following is tru)lapwjf/zs7 9:itv qb/lp13f e?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under tension T. The speed of a wqnq c6p29b;p 2synm83eo v:awave in the string is v. What will be the speed of a wave in the string if the mass of the string ip 2;mwb8ne632vq oa qs:cn9pys 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 speed of a if u81ek .8hwz)aap6jwave in the strui1ak8) a8w6fp hz. jeing is v. What will be the speed of a wave in the string if the length is increased to 2L, with no change in mass?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under tension T. The speed o 9n0zy,; zgbuff a wave in the string is v. What will be the speed of a wave in the striz0, bnfu zy;g9ng if the tension is increased to 2T?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In seismology, the S wave is a transverse wave. As anh r2 e-y0x htyuo481xx S wave travels through the Earth, the relative motion betwee -21r0xyt yohxe8 hu4xn 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 amjy uds:yi9,b 8woyd x36r14z longitudinal wave. As a P wave travels through the Eo4w6ib3,y9s18 j uddmr zy: yxarth, the relative motion 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 is4o oz;+g;rg-x+q7c og2snjkb

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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 rigbih7 923c e slerrytthf-c.25ht along a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and tranhf r cr3ycte2279-bi sht5 el.smitted 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 7lrmp3wkqf zy*w,i(f 4 + nho7each other on a string, one is traveling toward tzqipf+n34 olymr w 7,*hwf(k 7he 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 trave 8 5 jpqzp;*hl tjxt,trj80v+uling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negative direction. At the point that they occupy the same region of space at the same ti;tjtz8rvx hjp0ju+ qp58t,*lme

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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, su-a twc.qo 2o0egbw85. p 4attvch as a string 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 v4jq p7unfy5sznj9c a3 3w5o 9(+v) j0tkfxrxiiolin string, the fundamental frequency of that string will increase by afjav+k0 5qxn9 ix4c(37rztu sp joy )5wf9nj 3 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 o2q58 w f,wewjh q; zrajp0xt3-f a spring that stretches 2.00 cm when a mass of 0.600 kg i2fe, jwj-rq0z w8 3h5qx pwta;s 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 constant 60 N/m along a hor-o sq7(3ryl u:qfzokpv5 d18rizontal, frictionless surface. The spring pz1 qsr3qy8(klv o5u:-odf r 7is 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 constant 60 N/m along a hh +-m)j9evh1slj mev1 orizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass an+j vvse ej91m)mhl-1hd let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the period of oscillation?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constant 60 N/m along a horizonosntns ,xf09p gy23sk q6y4sfp 75j*4 8lu gestal, 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 fres xynsuogpktygl p6qsj8e45 3f*2790 n,ss 4fquency 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 undergoe67a;vzdz s:h.i- vm sfgf( 2mms SHM. It goes through 10 complete oscillations in 5.0 af-hg2z;vi.m ( zs6:f7 vsmdm s. What is the period?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth from the free end of an ideal spring off wo+,ww +z4-qxe5(fjgm./l wy8 oy fq spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of this v.4w, jyfx/zeof5mygof +qww(q- l8 +wibrating 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 gan( m9vxh5i3j..bic constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 nc(ji .hb 53 .9igxavmm/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 amplp+1ruwv.; kbe ve7)pzitude 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)ev ue.r+p bzk7 wp1v;. 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 of spring constant 20 N/mk jq-c9z-fp1j-g(jt h along a horizontal, frictionless surface. The object oscilla-fkpjq(z 1 c9- jtg-jhtes 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 constant 20 N/m along a horizonyt( wmq6yhd7m m q7)j0tal, frictionless surfaq0m y whjmt7y 7(dqm6)ce. 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 end of a ho+52c 2me-tms*kt5pb/x i i umch+jc4 xrizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What ix5tme/ - b2+cx+ u ccmhk5m24pii*t jss 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 73vet7wr)k 0a/ewuks end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude v7aew)k kw eusr03/7tof 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 of an ideal spring of spring c+,dg zlwb1xx1onstant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kineti1+zx b ,wxldg1c 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 n n./m(z5fmkeequilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had benm (kf5m/nez .en 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 to a spring of spring constant 10 N/m. b4molo1sk8-g ea c ,n* The object is d4o,8nl-c*s b1o kg aemisplaced 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 spri. v9xrx6cd8 oyaz-1u5 t:jmswng constant 10 N/m. The object is disp-wd5sya6jr co :19vm xz8 .xutlaced 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 fbd1z/d1 pl2w wnwi 43q6a dhj.rom a spring of spring constant 18 N/m, displaced slightly from its equilibrium position, and released. What is the frequency wdqn1 1hb63l4awpi. dw z/jd2of 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 (gt/zy dl 56j ibrvddh1y(*z1Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum velocity att(v( i dz *bt/ddjr61y1 ghz5lyained 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 spriuoyltw e28,l( c)8q hrngs. Mass A vibrates with amplitude of 8.0 cm at a frequency of 10 Hz t(l qe8hul,rc)8 w2y oand 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 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 mafccl55s n hjx9c6:j6jss stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest.j9:5 j5cj scxln6cf6h 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 springc-u :1 rm0f5fvstiuz: . In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional dtr0m: vc:zfsu51-iu f istance 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 4kpqj)t m)/ c6:9vbz cfbgk0xa spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released fro0pqg6 ctv9)x)/ bczfbm:4jk km 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 folntoaws (r,( r2k:pqg, 9ovf2rlowing position versus time equt( :oan22k9w ,of gpr q,sv(rration:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 followiymgpy+mn; cw;7du-h6+q n2j lng position versus time equn-w7 6ldp u+q my;2m ;hycng+jation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 osn3qxsz8de6wj- w8p a(xs4) s .ydt g4beys the following position versus time equationdspsy(x .e- jz6s4 8g4 )wstq3aw8xd n:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 executesj yzpco 8u/yez8e u-89 simple harmonic motion according to the equeo / y8- uzcy8eju98pzation $y = 0.50 \; \sin (18\pi \times t)$ 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 sprin 5u9w9ra/1q9k aw,e km1kc w w.:lonjng with a force constant of 20.0 N/m oscillates on a ho uq9wk 1rk:9o n.a n, 5lawcwmewjk/19rizontal, 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 fngl1-;mf i1 di/,y 7we1 slxmbrequency and perio g1,ewy-b /1i xdmmn7;sfl 1lid 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 j09-m hjy+4afs8k fmsEarth?

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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 its lengtyloex6y (ea9w/ s-ut5 h?

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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 0n*ph(pd1 sy t3igjl7.0 m long. What is its period on the Earthlp3 gsnd1y(h p70jt* i?

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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 d cqz)le,7 krgy s9h0(long. What is its period on the Moon where the acceleration due to gravitkegqlys 90 7zhdr),c(y 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 consiss z v9.dwlc:l8ts of a 0.25-kg spherical mass attached to a massless string. When the mass is displaced slightly from its equilibrium position and released, the pendulum swings back and forth with a frequenccz9lv8 .d: swly 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 20-g mas (ow5pc6tni4/b*01wczb idytsk6y g0.gyj4 rs has initial angular displacement of 8.0e. It oscillates with a period of 3.i(t6 0oby.scj6p zc rg 1y/04b5wwi yd4n*ktg00 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 frequ0:ptba k)eo(mency of the wavbmo(a e:0k) pte is 120 Hz. What 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" of a wav: .uo7,/*n 5okx pv cqqeh;mqre at a given time. The frequency of the wavekecr/mno7:5,* u.;vq op hxqq is 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. Thfx0y 92(.l i jgm nlfnjk5)j- g;b1gxbe frequency of the wave is 120 Hz. What is the wave spnf mi.lk bg2g )-9(lbfnjx5 g1y; xjj0eed?


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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 ,de-ib4 uh/zdj jg*p,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 frequnc m6y* p6k8crency 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 and a wavelength kny7 yj2g1hq4of 3.0 m?y7hnky gq1j42

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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 bxiz;,sqy) 37dr:ly 5/t t odgthat has a wavelength of 3.0 m and a frequency of 12 Hz:t;dd rx7oq/yizy,l5t) g3 sb?

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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 atr1:5 bte+, qki eyysz) 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 d/ne+wsu, oq4wensity 0.0050 kg/m is under a tension of 1350 N. Whanq4o+w,w ues/t 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 under a tension of 180 N. Whatsoq+z0 wo4t2e is the velocity of propagation of transverse waves along the string+ez0 to24qswo ?

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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 jd7 f7*dqu ri)kql;,,t0gxgy m long wire whose total mass,k) 7ftu;q0* ldd,iy xrg7qjg 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 propagatvr n -*wmp ;/c0,xaxl :bgy*sbion of a transverse wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the followin - /lcwn*rxaby ;,pg*0mxbs:vg 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 fdlgbc7t*a.:g3wvy.wak w2 a .requency of 500 Hz, which one of the following frequencies can set the string into resonant vibrationgw wab lv 3.*c 7dwa.g:ytk2a.?

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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 a sts dv- +tqudrmq wq )(d 28cn7q8x3ind.vxz/ .panding wave driven at a frequency of 480 Hz. What driving freqdqqnr7wxvq v)3.t-2p i(dnzd .x8dm qu/+8scuency 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 Hy) g.,jua.y0ymvm) z mz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the .y g mymy,0z).m auvj)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 deitpd-(.nf x,n vjp98onsity 1.5 g/m is under a tension of 20 N. What should its length be if its fundit oj 8v9f ,dnnp.(-xpamental 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 9m7 d ri+,c:xkitx v*nharmonics of a string of linear mass density 2.00 g/m and length 0.600 m when it is subjectiint:* kx+ 7vdrxcm,9 ed to tension of 50.0 N.

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99#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A string of length 2.5 m .h., zx yy7uavis fixed at both ends. When the string vibrates at a frequency of 85 Hz, a standing wave with five loops is formedxy,.yua .7z hv.
(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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总分:99分 及格:59.4分 时间:不限时
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