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习题练习:Physics Unit11: Vibrations and Waves

 作者: admin 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 cycl+e*cu vk f7eg8+k.cwae of 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 process, the number owfv.hug f67* 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 i ku:) h*7(z/f bcxpgcws cab)h :c7z ck/w g(p*uxflled 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 und3l k35t-vw limergoes SHM. When the mass is at its maximum displacement fr3-ml3t ilw k5vom 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 masdv4qun3- 2 s;cftc3vhs passes through the equilibrium position, its instantd ctq33vnc-v;4h f 2suaneous 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 z4 et2 hea(w)xpy3oku756qch.g a)v (pf lru5maximum displacement from equilibrium, its instantaneous ac g u )5evq6zkrh7 cphop .5lu(te ayx3faw()42celeration

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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 bowgu n;wd22bc/a k-n6p bs up and down between points A and-k 6ad u2;2cwpg wbn/n B. Where is the mass located when its kinetic energy is a minimum?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spri/vx9 ymcv*c g em61w5yng and bobs up and down between points A and B. Where is the mass located when itmgvem9 y c1wv/* y5c6xs 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 -)am)r- utfbpvertical spring and bobs up and down between points A and B. Where is the mass located when it-mrb p-f a))uts 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 vec0tc ys0xc/n)rtical spring and bobs up and down between points A and B. Where is the mass located when its potential energy is a maximum c/ xs0cty0n)c?

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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 rr)qb.*lb, /w7 ricbi-spring system produces what effect on l.rc,r)b/*i7ri q wbb 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 produces j 1: y ud-.;+jtlo zykwb9qw/nwhat effect on the syy-.ob t 9wwn; +/q :ujdlzj1kystem'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 cons xbsh8 gk;cb,-rfw1( nn8sbc1tant of a vibrating mass-and-spring system produces what effect on the system's mechanical wssb -1 h f8ng1bkccb,nx8(;renergy?

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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 and on the Moon. Wh3vyh /*vhdh2 qere is the period the greatesth2hvyd/* q3vh?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the spring c ncyug3gkw1:n; g va4,,bdny, onstant k of a mass-and-spring system causes what kind of change in the resonant frequency of 4udnvnbyak,3nw : , g1,cg;g ythe system? (Assume no change in the system's mass m.)

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the mass M of a mass-and-spring system rf.t :y1nej;q causes what kind of change in the resonant frequency of the system? (Assume no change in the system's spring constant k.)q;f:.1y rjtne

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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 8 sv+:5pzw 4 fcq u7gmu5mg8xea mass-and-spring system causes what kind of change in the g m+57 sq: 8gwzxu8emfvp c4u5resonant 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 weightle3bi44b zmcqo1z,y5w fss string of length L. For this system, when undergoing small ,fizmb 1 5 4qw4z3byocoscillations

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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 isbr(4 4o uzo:ch tripled, the time required for one complete vibrationcb4 oohr:u4(z

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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 lon n*14 krykp dovw2f0ns3o6 h-kg. The period of A is T. Pendulum A is twice -do h2 vy3*1n4rk 6kso0pkfwnas 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, klc -8sfkh,eeo+,z1e.pm xq 7the time for one complete vibration xp+e718,,-hlkqf.z ecmeso k increases by a factor of

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to a simple pendulum's frequenchv1i;n)vo lm. y if both its length and mass are inch;1)v. lvnm ioreased?

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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 r-vn4gp. s2 wnthe frequency of simple pendulum B. Which statementgn24p-.wv r sn 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 gravit57w r6oxrzh*2tnl- ik y is less than on Eh *-ntxo 25irwl7zk 6rarth, 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 represeq 4fx4s0kbguz t2 v28knts


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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 represma6 cf1 z/ pyul/us0r q36*iusents


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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. 11-1a 5mneo5q-igtj h;qa+l9z-4 b represents


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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 vibrat oj yczx-y82axa(vwq, ./dkm /ion 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 displacement of points of the wave from equilibrcst(jcl ecz :v0+ t2q,ium is called jcl qsvt0+cz2c :,(etthe 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 crc-4qyj1 lim+ zests on a 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 unit time is calln +fex; *( ttke,:cnnfed the wave';ke *f :t(xfe n+n,ntcs

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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 t4y u92f goirl2iyt xmm.l(: 92blnev/he 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 incrobjjnr7 )o.:qi1vw .r eases. What happens to the distance between successive crests if the speed remains cn.oq1 wbrj. vr)ji: o7onstant?

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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 yt9zwm,sn6t 8: u)poglw12l cwave on the satg lc 8p9tl),z wowy1:sn2 mu6me string 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, mass M, and tensio 7+he(t+ujgkrn T. A standing wahrgj(+t+e ku 7ve is set up. 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 length L is under tensionh/ 0h kdmwb6f0kb5hb( T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the mass of the string is increased to 2m, with no change in length?kdkb/0b wfh6m( h5 hb0

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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 of9). y*7enxv wi dsdu-w a wave in the string uw)d-yxie.*v9nwsd 7 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 ol fc*9ky n2f4of a wave in the string is v. What will be the speed*2ff 4 cyk9nlo 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 wave is a transvers 1lb:qcf k29ex ra)e kzk5mv;*e wave. As an S wave travels through the Earth, the relative motion bet2b* 5f kq x:) ;lr9ceezavk1kmween 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 wa4uf0 consee6 tk6m,c 3ve is a longitudinal wave. As a P wave travels through the Earth, the s6nt6ekmofcu e034c,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 wakj;+ +5ej+oerl4 w u (hnog:dave 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 dipup9swi8( n te4f tv6tk)c98kscontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and transm )4(f k9iu6ktntpvp9cw8ts 8e itted 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 eachp w1am5 dh6 mw;hbi/4 *.rac9seo0tcu other on a string, one is traveling toward the right andh/bmweu*d9.;16aihwp 5ccm 4at ros0 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 traveling toward the rohv.5*lkass -ox q+) g -0trnfight has a positive amplitude, while the one traveling toward th.akt-0f-h lng)v+ o5*rxssqo e 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 asn9q z j-vl.2eh 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 x-k8mk wq9 q pl-99zgyin a violin string, the fundamental frequency of that string will increase by a factox99 qmky-8z-wq k gl9pr 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 cons: cyp(tjh, p)( t ahaod:1t(zntant of a spring that stretches 2.00 cm when a mass of 0.600 kg is suspended from inpa,d y(o j ::h(tza ct)1tph(t?

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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 a4 n1w+oyaf7s r 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 tos y7now+ a4rf1 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 td/qnp)zuf9jtn ap 8dn)5n1 v9 o a spring 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 9a)tdn5 n/ z8unfd v pqn1p9)j0.50 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 6f h nreip i384pmwyb0 m38)le90 N/m along a horizontal, frictionless surface. The sprin3rh) bmf8ei m 8nwe0pp9i4y l3g 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 thr0or7+4zxk9ln;s cia oough 10 complete oscillations in 5 ;l 049n xzioacoks+7r.0 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 freed:4kto)xk14swd (k e , 4tryme(z5pqi end of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is the kineticsmt1 5(kxk k(d4:re,ty4z)4 weo pdqi 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 0j+ obczabw /b8.onp) g)rxy( horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium pnro)bp(/bg0b8 xy +aw cj.o )zosition. 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 thv*lk *7 c;vybdis time. The mass is cut in half, and the system is again set in motion with amplitude 4.0 cm. What is tb 7kly vc;v**dhe 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 atta7q rvwv r9s5g jbwj.6,ched to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. What is the s7b6wrw qv g,j.9v5jr 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 attacz/d qvym5 rwml43:y -(q5ac ndhed to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilr 5dz5d aq/qnwm4c(-:ymvy 3librium 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 spriao7t 1k2hqo4i ewy8a/ng of spring constant 50 N/m and set into simple harmonic motion with an amplituo4weak8/ qy t 1oai7h2de 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 atta9a gb y4jp)ofv(z7/g30x ip cc,ws.peched to the end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical energy of this systfje4/ )bgxpg .9 ,037pspia c vcyzow(em?

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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 e0f6kb gt g u(//b1 ov0v :lwih,uhr/iand forth from the free end of an ideal spring of spring constant 20.0 N/m with an aolv uike,:hr(0 b/1u h/twv/f bg 0gi6mplitude 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 equil-4e ce 3r) qv:gvd89v ucm,etxibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be obvcu):3t q9c,4v e 8eegmrdx- vserved 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 omc)7ppw .x*d hbject is displaced cx)7p hpm*.dwby
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. Thrv a9 sd kd;w6)g:cv8be object is diwd8:vv ;bdr c9)kas6gsplaced 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 springj0figg3ln7l6y ;ndm4m o oi;* of spring constant 18 N/m, displaced slightly from its equilibrium position, and released. What is the frequency of its vijo6;l o*g0y imfn 7d n43;lgmibration?

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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 frequenfr:(6kzm4dfmj h; y3l cy of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum velocity attained by :m kyfzj;4r mf3(6dhlthe 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 with amly6tdj)bny48hcznl9 n5 .ya) plitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplituden)y9 z )8 hcdl.n yj4bt6lyna5 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 stretches thc+uoc;z y/ o g ed+2cgx56myp/e spring 2.0 cm downward. The mass is then pulled an add+/ezc5 gp6m+y gd; cc2uxo oy/itional 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 susag9r02 :lhyiog1sc,r p n67mkpended on a spring. In equilibrium the mass stretches the spring 2.0 cm downward. Tho: lc7s6g102r hkgypm, irn9ae mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the total energy of the system.

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a sprin4;o3sh q81jmqttgn t2g. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance ;h3 t1q m8njtqot4s g2of 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 followinwns1nc-e5wjl 29hl fa p*:+rdg position versus time equaa lhenrl1-2n+ p js59 w:wc*fdtion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 moti 0x4p- )exnxkkon obeys the following position versus time equatioexkxnx-)4k p0n:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 followmv)+d *ydqq(oa bsw7e*u 86ao ing position versus time equation: m 8saaw *)ud(bqd*+6yovoq7e
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 h4 7e2gpq x+0r/f r*rszi4f dplarmonic motion according to the equairfsx7p0 ep+/2 4 qr*l gfrzd4tion $y = 0.50 \; \sin (18\pi \times t)$ 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 , k tahoi;xxx;i)j54jogaa5 1N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released from restaah) t;g i kjo;,jx5xoa i145x 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 compleozl6lj:r 5, nate swings in 8.0 s. (a) What are its frequency and period on Ealr6:lj5, zn oarth?

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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 28.8h))gwbq 8 ponf .m1ar+4 m long. What 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 Ear2gnnss-d9h5 z th. What is its length?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock is 1.0 m long. What 0q.+ yv t/*szqie wv8vis its period on the Ea*q80vv .qzs+v/t yiew rth?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock is 1.0 m long. What is its period 2a4-wvd f op -7k3kqgi 7cmr9aon the Moon where the acceleraqi74 aowp -97akg2rdf3 k v-cmtion 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 a vv .g)0 po2cm y9phm;xmassless 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 diame09ocmx g.p2 pv)ymvh; ter 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 displaci 1 t9kty tds6)6b*gnoement of 8. 6ky 6tti1dobng9)*ts 0e. 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. Tq 61gn sb3q1v d)ozrv;he frequency of the wave is 120 Hz. Wh6q ;g1 1rn)3qbozv dsvat 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 "snap-6wv.qz0(si myoskpa() *r uwpn n8 i:shot" of a wave at a given time. The frequency of the wave is 12wpp(-s)ys o.(a q*niw uv m6 8zk:irn00 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 the wavc3l12 rapg ha-e is 120 Hzrlhg paca2-1 3. What 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 wave which has a periodf.*tmd x. 5p ofn5q1el of 6.00 ms?

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the period of a wave with a frequency ofdo4jcxrdi )3o 43d:-pppt1 ueak a39h 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 s;/2lk(a svm cw9nx7da frequency of 12 Hz and a wavelength of 3.0 ma(vn2s wdx/ c;9kls7m?

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the velocity of a wave that has a wavelength of 3.0 m and )*/ vujl/w gsm0q jqw0a frequency of 12 Hz?q l/)w00sjg/j quv*wm

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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 ay ai7zzi-q. 9i+9+sbb2yofy o 2.5 m wave traveling at 1400 m/s?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A piano string of linear mass density 0.0050 kg/m is bn/wn/00ul uz:fcrsfof9n,ltl3 u 49 under a tension of 1350 N. What l/ 9flun3u0cuf 0,sobw9 zrf/ n4 n:ltis 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 1a j w54kvt:v7x80 N. What is the velocaw4kxv5j :tv 7ity 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(jaln 78vjw9jd6m ;08j hllte 0.500 m is traveling down a 500 m long wire whose total mass is88lnjv;lw0 jm(eh6j 7ajd 9l t
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 propagati2(k9swxy ;uy hon of a transverse wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a resonant frequency of xu;ysh 29(kwy 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 5m .uqlyn q.:t100 Hz, which one of the followinglq u:ny1m.q.t frequencies can 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 equal segments in a standing wavw wn96n)6z.wowa(rb go4s w2je driven at a frequency of 480 Hz. What b6z9os w gwao2(6. 4)wwnrwnj 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, vibrates at a frequency of 12 Hz with a standlkdh1lmaa -a)nq9g 0r43s 7qaing transverse wave pattern containing 3 loops. What freque -qg4)s lld0ahaqnmk93a 71arncy is needed if the standing wave pattern is to contain 4 loops?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of linear den8kyei 6ttn0lm6lac .4 71ijynsity 1.5 g/m is under a tension of 20 N. What should its leng1 8inj0ke7yy4tai.mlt6 nl 6c th be if its fundamental 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 harmonics of a string of linear mass 2v vef3bq85bol.hd4eg;ms1i density 2.00 g/m and length 0.600 m when it is subjected to tension ohg desvqm3.1b4fvl5;2bie8 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 fixedxjj:-oj,8 -qg(gts l f at both ends. When the string vibrates at a frequency of 85 Hz, -qj-s,ojg(lx j8f gt: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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