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习题练习:Physics Unit11: Vibrations and Waves

 作者: physics 发布日期: 2022-08-06 21:32   总分: 99分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月06日 21:32  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The time for one cycle of a periodic process is called tht:o*a x9- 8jrk 94deou ehuv:pe

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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 numbip-9f f9hio :zk pb-6ler 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 displajn ms1-2 isaug.3t* m4ctugq:cement from the equilibrium point is calle 3a:tuusg.jg-ism4nt 12 mq *cd 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-+)ps+2n ztf je pde*t mass is at its maximum displacement from equis nte2fz+*)-dp +tjpe librium, 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 66 4)8zggt1ktyqq+f dkjuff 1 through the equilibrium position, +)t1kf6t6uj4ygf qq18dfg kz 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 a;m 11.ftuw uvxpp7h.maximum displacement from equilibrip. 7tu1af.v 1; mhuxwpum, 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 vertical7k d-i4vcai6 -s*qghm spring and bobs up and down between points A and B. Wherekd s qai*-civ 74h-g6m 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 sprif*m) gwv2lnb. irvx vrspc4 z6j2+:t *ng and bobs up and down between points A and B. Where is the mass located when its ki+ :sg)j2nrzvvwt6 x42bv if *.rl cp*mnetic 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 sprinkc xcz 79rs1ti:k st w5oq6-l2g and bobs up and down between points A and B. Where is the mass located when its potential energy is a mini6tso-wz t :1ks irccx5q97l2kmum?

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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 wpbkq2e zuk:e iz(:8oi:4 - nidown between points A and B. Where is the mass located when its potential ene28zkp qie(4 znouiikew: -: :brgy is a maximum?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the amplitude of a vibrating mass-and-spring system pr)gfl: q/tcta+lhe l7 p1:cnk )oduces what effectcfh1 q:):p7le g lt l)+/cknat on 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 vibrating mass-and-spring system produ26;d(lomqk/pyq23gujfpjf 1 ces what effect on the system's mechanical energ/ff yjo;lqm pu221g36d(jkp q y?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the springnjl)7x:w om(ws1p e7b(s/ mpz constant of a vibrating mass-and-spring system produces what effect on the system's mechanical energynsz )wj mm/(wx7bl 1 p7esp(:o?

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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 ox2q k:lcn7 qx0f a spring, both on Earth and on the Moon. Where is the period theqn :clq2x k0x7 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 causessflpxf .6g;y vo+o8a3 what kind of change in the resonant frequency of the system? (Assum 3a 6v;.osof8gpl +yxfe 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-anv2 (:mkou e9*q(wt*wfz ;v i*x;hnsved-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in the system's sp2ehowqk(9f* (;vi nxu*m esvvw: z ;*tring 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 kin map46os)2 hwld of change in the resonant frequency of the system? ( hoal6)4 psm2wAssume 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 const+4wiw()3.o q.go*eeg x 7vqm+ppg mkists of a mass M attached to a weightless string of length L. For this system, when undergoing small .)xepmog 4qm e*.(gwt3 7oi kwqg++pv 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 simpl8iah dr 9r-*wfcyrt4e0 r3kctm un25,e pendulum is tripled, the time required for one complete vir -h4ir,d*r 8tycrenw25tkc3 0 mu9a fbration

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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.hb*otk6m90.7zi fiqwf hq7i8 The period of A is T. Pendulum A is twice as heavy as pendulum B. What is t96 b7h f.8 hoiqzfw*qtm ik7i0he 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 tri xd3a8) f7aj 6;eidwinpled, the time for one complete vibration inc )iw;67d 38a xidjfneareases 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 it6mg 2axewk.;)q f rr7gs length and mass are increased?27xr gqk wmg;r.f6 )ae

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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 4s3gk /j.hw5yg,wwr(q5vh0c )dgpk qency of simple pendulum B. Which statement is correct/kqwqj 3r5yhp,d(w cgghk0w) vg 5.4s ?

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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 accelegvbgm*5-q6t scc; bc-ration of gravity is less thav--s6gcbq ;mtcb *gc5n on Earth, the resonant frequency of the pendulum will

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve A in Fig. 11-1 represent7zgwn/4j*5x edqcfe) s


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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 represeny-i8 brud n na34 rxz0lo5-;ikts


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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 represen sx7ko5/p6zt x xx nlkxx14)* fl3yu2nts


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 ptwm 5su-u04u j,dnnkue0o5 k8)d:ta 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 b.npqw1*lv09,: vgwp:swau g of the wave from equilibrium is capb vwg :waq,v u1 p.sg*09:wlnlled 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 4 ta1t pm8cee)juz5* ya wave is called 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 per ul2 ;i0ryviz c7-bb8vdnit time is called the wave'svyvl ;d 8ic 2ribb0z7-

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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 wavelengthshostx 2,e4pi,()x ha 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 wav .m0 kl;.8e3 uqds) sdrbtvp*je increases. What happens to the distance between successtk ;.sdplv8qe 0m.*)sjd3 rub ive crests if the speed remains 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 a.yem1d/ rot 5bs(8qnjs6 m*bon the same string 5 r/8yeab*jb sn61t.(mmqo sd has 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, massho fs7yh4 4 b; uh(/4e;ntqssn M, and tension T. A standing wave is set up.shet/yb; 4hq(onfsnu47; 4s h Which 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 lengyby+tmpc (b vl 1d s,)3go:/vpth L is under tension T. The speed of a wave in the string is v. What will be the ypvvl do3m1 +sb b:p/)y(c,gt speed of a wave in the string if the mass 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 ypk6kmts0 6 8 j9jiv:uzj6ct1 *fl1xt 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 the1jij91kupz 6 ctx 6m:ktvftslj8y 06 * 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 ltaj 9 ojw2**br29a uhL is under tension T. The speed of a wave in the string is v. Whajtu9*waolj2b h9*2ra t will be the speed of a wave in the string 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 wavec y9)r jxy( 8p es7bomp8phjr.; /m*do is a transverse wave. As an S wave travels through the Earth, the relative motion between the S waveds e 8h pr yb.mmx97jy*)p(roj8po/;c 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 longitud/fn27o+uv qwdinal wave. As a P wave travels through the Earth, the relative motion between t2/vdnuwo fq+7he 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 wavew(5 bj dw*28hcr,wd kv 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 right along a thin cord reaches a discontinuity wh2j,)lz ct4qsk :xf8owere the rope becomes thicker and heavier. What is the orientation of the reflected and transt2lq w:okx)z8, fj4 csmitted 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 p z-lcar6 .cmi4ositive amplitudes pass each other on a string, one is traveling toward the right and the other toward thc4im.a rc- lz6e 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 2lujx4a-7rqotoward 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 atarjo- q27lxu 4 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 systemw8 honh z.3oi57g xrp* v uprc8;h,3bi, such 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 vi6zk*w8j3/ xq hx)j6lmuiv)hkolin string, the fundamental frequency of that string will increase by a z6hl*)xij) 6h qv3x wjk8mu/k 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 wqq g9jv/pcwp3j (t+. ohen a mass of 0.600 kg is suspendejo pcjw.qt q3 9/(v+pgd 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 ofemyqd 20p6 rifj9 x*g9 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 oscillating69 0x i2rymepdjq9g*f . 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 horizonp:x*7vn )mh8jo /gkla tal, 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 equilibr/povl7 gn)j k*8ha :mxium 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 ao m 4,iyx.m7rz spring of spring constant 60 N/m along a horizontal, frictionless suror zi 4yxm7m,.face. 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 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. Iz:ahgp anau0 75c, bb:bap.6xt goes through 10 complete oscillations in 5.0 s. What is,:pa7b 5bbx:a06ua h pgcn za. 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 fort)0l mw3n/njlpd y hsvkh 95q**h from the free end of an ideal spring of spring constant 20 N/m with an amp v0* nm ylj )9phw/dksh35nql*litude of 0.30 m. What is the kinetic energy of this vibrating mass when it is 0.30 m from its equilibrium position?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a spring of spring co ka5:*ygrk,1 h (xohmenstant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speedx oh*g1 m ,(rk5y:ehka 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.ixkqb+ y51e8d +e-i)ggrb +ec0 J at this time. The mass is cut in half, and the system is again set in motion with amplitudei-cyeq gx++eke big)r8bd 5 +1 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 of spring/k li. 27 gy38ynsvyi:c rqdag58tgv * constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speey q:c /*y.kli 72y8g53n8vvtsirgagdd 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 con0:7 uod c1*xwnh bpyt9stant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motio xthd*w :u ynco0197bpn 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 spring consragn w4 ..ntd;tant 5.tw. 4drna;gn 0 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical energy of this system?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached to the end of a horizontal spring ofrv.+z8( ylkegc 2et 5i spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. Wha evyr +.8eg2tcliz (k5t 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 fv/o-e+z d ay3 k7qlw(xx hwjh(f.l c;7orth from the free end of an ideal spring of spring constant 20.lvj- z h(w7;+ywcxf(o .lh e7kxdq /a30 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 displaced 10 cm from its equilibrium pr:0n3)p q(ma4,(qtewm:hds nvy9m; l:n qbtnosition and released. A frequency of 4.0 Hz is obseret(;: wn0 vq(p 3nqanlm,hb)tqm4:9r : dnms yved. 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 to a spring of spring constant 10 N/m. The object 7/ifen-o )rmjp x*s ynux72ms2ug,6 kis displace 6y,7-npsj x2 eos/)rf nui*gx 2kmu7md 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 obvi owgj9 ,b+ sqa;77qxject is disg7jqo97, +wabi x vq;splaced 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 hunv;r.txtfjb c 8/ cxjt 1owd*/f-:;ohag from a spring of spring constant 18 N/m, displaced slightly from its equilibrium position, and released.t j:o;-ajv ox8 cctdx/f/;w.t *rbhf1 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 Hrgh)y-y+ z fweuz nc+n- )g/* ci4urk*z when displaced a distance of 2.0 cm from equilibrium and releasedg)if+ * cckegrryz+4 n-/*z hyu)uw-n. What is the maximum velocity attained by the mass?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two masses, A and B, are attached to different springs. Mass A vibrates wi1 fiyy vsg/h-dl13*i pth amplitude of 8.0 cm at a frequen *fpg3d- v1/slyh 1yiicy 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 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 mass stni speei7(7, v3 phzwvs( jpx;af1(v.retches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest.i;. pzvv( ,epijspa3(1fwse (hv7nx7 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 :1zswn/ 2i. iy8eal gxstretches the spring 2.0 cm downward. The mass il2g1 w:z8ianexyi .s/s 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 onvk0e2 v qac8+c a 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 rel2k eqavc 8c0v+eased 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 versus time equ3q(p8o;p dwu/fwnp9yk 2g vf .iop *i9atwp.gi /9fdpwq(op3fnp o*;iy 298 kuv 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 thl2l+z 8m fs./)vlhhyul:k v :ie following position versus time equa kl+u)zhv s2 yllvl:ih. :/m8ftion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 ka,+a vexc7w3,ec2kffa 3 :tuposition versus time equation7, ack23faxeufvc:ake t,3 + w:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 /ydx5wr z*aa l*7s .krw3il5c free end of a spring executes simple harmonic motion according to the equatiolww5.dlz*xs75i3a *rr/a c kyn $y = 0.50 \; \sin (18\pi \times t)$ 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 ofwhu(2: av-yrek33 wwp 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 is stretch y -wr3up3(2 vew:hawked 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 andgr0rg,c4umpr t ;s b:0 per ,:srtpcmurg r004b ;giod 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. W e6lvf3vya:l bg 6q5f+ b5d:xwhat 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.nio fk6 -g6ft0kk //9 n0vmvbs0 s on 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 bdkn:4(pb (mx .t7jdzf54. nki6y qyc.0 m long. What is its period on the Eariq jy:6x. . zbm4y( ctk kfdp5d4bnn(7th?

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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. Wh ma: ods(uql-:7y w7fuat is its period on the Moon where the accelera: - usf:wuodlmy77a q(tion 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 spherical mass attached to at t8m axsnw200q,(a ha 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. 8a0xtwt nqaa,s 02 m(h 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 mass has initial angular df ,ixu o,n7o,meuex99isplacement of 8.e7fxui9 uo enm,,9o ,x0e. It oscillates with a period of 3.00 s.
(a) Determine the length of the pendulum.
(b) Does the period of the pendulum depend on the initial angular displacement?
(c) Does the period of the pendulum depend on the mass of the pendulum?
(d) Does the period of the pendulum depend on the length of the pendulum?
(e) Does the period of the pendulum depend on the acceleration due to gravity?
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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. The fr/91ubsvo;iuvtt emj8p( 5 y3 yequency of the wave is 120 Hz. What1v(ty mueb tu ;5v9y3 j/p8ois 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 wave at a given time. The frequency of j c/ulrkdob) v :d- sv7o 8;x3q4pbhw-the wave is 120 Hz. What i-/ ov8ouq)vrdlbw jhp:; 43x7dskbc -s 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 ayf1m76;mu) obltw q n/sb;gy 2t a given time. The frequency of the wave is 120 Hz. What is the wa2n ;/gyqm;ms7)y6 woltf ub 1bve 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 wave which has a period of 6.00 ms2 e1xfwp6qe g3-m76ht ere3zh?

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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 o.fd 3i5 mfd nti0i*uub6a:4ohf 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 1-e99uz mddxknv+h toiwn5 s 94a*+kj3klh*o82 Hz and a wavelength of 3.0 wk aek dk4-u d i v3lhs+nn9h9tm*5*xzj9+8o om?

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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 t91 sm c9tkw+s df1i*dt nja1t/hat has a wavelength of 3.0 m and a frequency of 12*t91w a td1ic+19 ns/mkdjtsf 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 at5 vcuxn a.+y9tcwf-vie4w(2i 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 -r-9yczpfm y,+ak g3vkg/m is under a tension of 1350 N. What iy yr-a 3vgp-z9m,kc f+s 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 a f-h;dm mb-t2ltp9f* of 180 N. What is the velocity ta;m--fl mt d 9fbh2p*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 lon1pt+o9 cjy6zg g wire whose total ma+cygt9 1zo pj6ss 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 tranh a3k8qdi1rp8gk *z,jsverse wave on a 2.0-m long string fixed at both ends is 200 m/8h3 q1* ,rk kpagdzi8js. Which one of 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 fundameny6 jug0ajtscv-6r) ) 2i 12fmn/yhim1yypzz2 tal frequency of 500 Hz, which one of the following frequencies can set the string into r -/2ar)vsnf 0 tu 22jzyyzjymg)yh1i6ipm1 6cesonant 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 a standing wave dry ,v.re-,q ojaiven at a frequency of 480 Hz. What drivin ,.jvyo-arq,e g 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 frequeg09x 9srnyk 5jncy of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the standing wave pattern is to c9k5s0n 9g rxjyontain 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. Whajg-g 7aoe f+okwo894e,m ey) xt should its length be if its fundamental resonance frequency is 27jwe4 9koea-yg, ox+fg8o e )m20 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(ig4id :pro7f 2.00 g/m and length 0.600 m when it is subjected to tensii di7gpo:r(4f on 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.xpc9v6 m -tn1uwa2k8 k5 m is fixed at both ends. When the string vibrates at a frequency of 85 u2p kn-xm1vck 6twa89Hz, a standing wave with five loops is formed.
(a) Determine the distance between two adjacent nodes.
(b) Determine the wavelength of the waves that travel on the string.
(c) Determine the velocity of waves.
(d) Determine the fundamental frequency of this string.
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