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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 periodwju czqj4v(r az/(8nn)8)u)xe nwvz)ic 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 of cycles per unit time is g91 ujs:q5p lucalled 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,dvx;noj tu6d c9;n :t is ct v9conu,x;djtn ;:6d alled 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 tr+0utx r5s) wohe mass is at its maximum displacement from equi )ut5+ox0s wrrlibrium, 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 undergz;q3) n ut*urtpor4ot 3:bhd 6oes SHM. When the mass passes through the equilibrium posiztt*b:6u3u4 3d ;q)trhno oprtion, 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 SHpwc1):a*jrr hM. When the mass is at maximum displacement from equilibrium, its instantaneous accelp r)1w* acjhr:eration

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and down between points A am4rnpxj ;;6 zand B. Where is the mass located when its kinetic energy4nxp;6 mj ;arz 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 betb5emawjo/cnyx(e9 6b)1 6kuw ween points A and B. Where isj)nby c/o xewkub6591ame(w6 the mass located when its kinetic energy is a maximum?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to t/ 6/fld goo(ya vertical spring and bobs up and down between points A and B. Where is the mass ft6l /dg(/o oylocated 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 vertiyh.ujoyais (n 4e338y k8)ckmcal spring and bobs up and down between points A and B. Where is the mass lokny.oim)jkyh88 s343eua(c ycated 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 vibrating mass-and-spring syst*5dkiz ct6yz 2em produces what effect on the system's mechanical ity 6c2z5*dzk 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-spri4 e hpmu7vd-m)ng system produces what effect on the system'up d4) ev-mh7ms 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-6gvc9odss*p)8sb j f/and-spring system produces whsd 9*g)josvfsb68/ cp at effect on the system'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 tgmnt tu q9d3 fa j,cwi.eu*z7 -e5j/u)he end of a spring, both on Earth and on the Moon. Where is the period the gr,ut wiz9q)c-5e7.u * /dgtam n3uefjjeatest?

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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 f xy89xmm0f ft+e clsv3s/e4+mass-and-spring system causes what kind of change in thf9e 8x / 3x+fflm+m 40ecvytsse resonant frequency of the 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 causes what kind of cha:v4k;z: edlv qnge in the resovlk:ev q:dz; 4nant frequency of the system? (Assume no change in the system's spring constant k.)

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the amplitude of a mass-aw;1pc7x ;k 1br egcr2m)5mz8o 3kqu kr7 fn4wdnd-spring system causes what kind of change in the resonant frequency of the system? (Assume no other changes in thpnc xc ;krw1b8r e5kfrg1wm z3;4ud)o27qk7me 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 atta/:vz7vw ur*(+qy yig nched to a weightless string of length L. For this system, wh* y+(:q n7wzv igu/yvren 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 p6o:dm4w c3lo-mj g6oeueig ;58kjn9o endulum is tripled, the time required for one complete vibration6 k 8eoinegj;mgow-c6uldm: 5o3 9jo 4

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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. The1 g2ljoy67c yuqvr04 b period of A is T. Pendulum A is twice as heavy as pendulum B. What is the g6u2l41 yj bvryoq 70cperiod 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 trszyfeq80z w -a7mc :9/i spw/eipled, the time for one complete vibration increases by a 7/ym-wezw 8 ep :0isqfzas9/cfactor 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 simp :kewdp3+ 5sgnle pendulum's frequency if both its length and mass are increeg:k3psd n+5 wased?

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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 jztqkvae1 (na.+v13mq bd 7k1 twice the frequency of simple pendulum B.1k3tja(7d 1.+m 1nz evqqvakb 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 pendulum to the Mtxxmasy.i m8* juq jw7z52x//oon, where the acceleration of gravity is less than on Earth, the resonant freque.z jixm* q/x w5j2mtxa78su/yncy 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 rep3lwjm)x73 n7ro pi;h rresents


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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 represen:c ,tjl4e*oyu+ ,mxpk8qe0br ts


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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 repre cz a ymnq86no /;2n*/wsog,issents


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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 amplitu:j 2qt, dve:flde 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 displacement of points of the wave from equilngbm)pv30eo9j t/ p *nibrium is called t9n)e3jop0 m t/p bgn*vhe 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 them;bp4ndujz1-l 2i h9g 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 wavu ks8pfbbo6; *t) nnf.e passing a point per unit time is called the wave'ofb p; nfs.6u)8*bn kts

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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 thwmn1ict2( skke :e2.ie 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 wt,pz)2arjwzvm 9 dv/24kpw3fi7 .x ksuccessive crests if the speed remains czv.df,xpp mr v9k4)awzkt2i /7ww3j 2onstant?

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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 ksiv:863a9lyk vxs -uwavelength 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 tkaks8v 9 6l3:viyusx -he 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 iuam y.b. afuc u18*+v kn3jy4tension T. A standing wave is set up. Which of the following is tru kyju8.14 ya +af.b3n imvuu*ce?

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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. Th u, lzm//mfh,ktk17rh e speed of a wave in the string is v. What will be the speed of a wam , 7zmhf/rl/1,ut khkve 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 L is under tension T. The speed of a wave in the -sbl(9h7jdvwstring is v. What will be the speed of ( ljv w-bdh97sa 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 tensiouz zav0dsh 5))n T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the tension is inczd)zh s avu)05reased 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 an6ss2 aq97uz vh S wave travels through the Earth, the relative motion between the S wave and the particle6s7uq9zh v 2sas 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.-11 svk- br0gsb lyqzinal wave. As a P wave travels through the Earth, the relative b.zv1 -k q-sgrs0b1ly 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 wave6-5r lu ww 2qd;ldoe+aj tw53e 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 k dte 9k)5g6ekthe right along a thin cord reaches a discontinuity where9dkeg 56ke)t k the rope becomes 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 posig90aooe-vd hygt. w7,tive amplitudes pass each other on a string, one is traveling toward the right and the other toward the left. At the point that they occupy the same region ofd.,gt o0av -g97ho ywe 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 of*)+ vu *)m qvq11k2b1 ihyb4.fntuob(ehh svn a string. The one traveling toward the right has a positive amplitude, while the one traveling toward the left * 1v(fi4uk +bm)*hbye qn1vo h1).vhbusf q2thas 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 at both ends, occurs when :djyhc8 n56 fwr,kd,o mh5vy1gxgy/ -

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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 in3e5e b a3rz0itszghzob3:*w 9 a violin string, the fundamental frequency of that string will increase by aw5b3b 3:eio z srhaz93gt *e0z 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 sn-+gwgizzr, x3z3vqari x6 ofk6s5 1 (pring that stretches 2.00 cm when a mass of 0.600 kg is su1+6 q vi n,ozw6s3ifazgg-35x(krrzx spended 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 eqe *u1kw3m )h,fvz h;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 takes3emu)wze,1;*k h vhq f 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 coz je,hak;7g;8bu qz/stu61gh 3rj w-mnstant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched bymsw7;azht3jb/1; 6z hug8j -r euq,g k a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the period of oscillation?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring vcy64 lce)m)d(eeg e 1constant 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)ce6ee(m4 egcldyv) 1. 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 underrnn0 n4*7d r iuh9e+rigoes SHM. It goes through 10 complete oscillations in 5.0 9dnn*r70+rihu re in4 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 of spring cof;kc :zyt* e(6ih0flonstant 20 N/m with an amplitc(0hl6 ez;yof :kti f*ude 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 constant 20 N/m along a horier. v bs .run4rx-js977qb 8oszontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. What is th 7vr9bbo7qsur-4j sx8.e.sn re 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 timel6xj 3ua ox9;w. The mass is cut in half, and the system is again setx wlxu; j3a6o9 in motion with amplitude 4.0 cm. What is the energy of the system now?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a spring of spring constant 20 N/m along amybq/m8jm3 ;t 0agqgqso4 ;a, horizontal, frictionless surface. The object oscillates tagm qb a4, 3m m;0;/qoqsj8ygin 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 faxb )so3og*0 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. At what location are the kinetic energy and the potential energy the safa bogo)0 *3xsme?

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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 avc ,k;m s*7u0 v 6kkjnj7*zqyn horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitq kcy jn* ,nuv0;k*7j76vs kzmude 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 attachepr3 h n2uc,f.yd 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 enhuf .p32 ,rcynergy 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 sp q*l g- 9t3b6*qvspoxs/ +.3dvf tevawring constant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kinetic energy of this vi93tv/vw*e lv -+bp6f3aos s.* xgtqdqbrating 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-sprmjrx j).fan: (ing system is displaced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been displaced only 5.0 cmf:jj .xr()n am 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 ato7w 4fnrjhgpg/ 9**q etached to a spring of spring constant 10 N/m. The object i4e*rhwg9 of /png*jq7s displaced by
5.1 cm from the equilibrium position and let go. What is the period of vibration?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached to a spring of spring constant 10 N/m. The o5b yyo9ygk 9.lwzf,z(bject is displaced yb,kl oz(9g .zy5f w9yby
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, displ:t dy5/fds r r3h1*vbzaced slightly from its equilibrits y*1hbv5 dr3d:/rf zum 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 osc-9+ bi/gj cfh js0l8xhillates at a frequency of 1.27 Hz when displaced a distance of 2.0 cm fromxgshcfij- j8h + lb/90 equilibrium and released. 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. Mas :tl;ekd -n6rfs A vibrates with amplitude of 8.0 cm at a f l;nk :tdef-r6requency 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 8ag+.z1t rqwph:z*a 2dwylw:spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional hd ap.z 1wqry*t8 :a+lwz:2g wdistance 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 the mar: vorq;h2 b,l ig2fws) 0tm+yss stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the total energy siq:bf rg ywr2h0 lo+); v2mt,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 sprin*(ia wd x769s+haar+(n)vx n lj3ifqyg. 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 from re+ya sh av9 n(i()awq3jxrx6ndf7l i +*st. 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 versusr2 mhz( z0)-dfrto)kd time equtrf-d(k)z)0 2hr zd moation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 mojtvc 1k*y64d jtion obeys the following position versus time equat*j vycd 164tkjion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 th)8+pgwqb x(4hpgp+ve bdb fnw)1 d -1re following position versus time equationphr 8e gxbp++ 1wd)vp4ng1qb fb)d(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 free end of a spring executes simple harm hyrn6./xu, pk6fdbp:onic motion according to the e,dp uph/x 6 yrkn6f:b.quation $y = 0.50 \; \sin (18\pi \times t)$ 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 constdlslo+r 7b ,6fant of 20.0 N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x+f lbosl,d76r = 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 frev5 z9oib*j ,dnl51ov t4rg. laquency and period,59ov5. li v4 odbr nzjt1*gla 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 peu zo:k6g 7i988s lakoiriod 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. 2ezau 1zl 4by1 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. Whazzwlm,g w)zlewsk6./5ge 8 k4e 7qk.97pxdjit is its period on the Earth? e56 s 9m4 .zkjzpwez7eq.wdk gik 7x/w8l)lg,

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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 ov6z 6xcq1 maav0,2 r u)mz6mtnn the Moon where the acceleratu x6rtam6mmanvc 2z)1z0v q6 ,ion 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 0.20iyjt-w lbi d;w6, ;xo5-kg spherical mass attached to a massless string. When the mass is disp 6di;0 o;bj- ytiwwx,llaced 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 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 d xw xfrxku1/58f-pjm3isplacement of 8.0e. It oscillates with a p1 w/8uf jkr5xxm3fx-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 frequencfs 0s-p5u ar,yy of the wave is 120 Hz. What ay5su s,p 0f-ris 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 s o0 wklr8nr t4+k-wno*7d gm2a wave at a given time. The frequency of the wave is 120 Hz. What is the wavelgnkn84 0k*s -l2+r rotdwmwo 7ength?


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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 "snano( e, ale+1cjoz9jc-pshot" of a wave at a given time. The frequency of the wave is 12c9e jocao(nelj+ ,1-z0 Hz. 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 whichamx b:::d-b ak has a period of 6.00 ms?

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the period of a wave with a frequencdzzlyb 7- 0x)w fxw9*ey 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 wavelejnez17j f u0n)m(j/sx ngth of 3.0 0(zj f7uenn/)j1xjsmm?

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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 a frequ h9*-ks0zycu lrb34+:hkflosency of 1 :fu4hsl*3 lcor9s yk+h zk-0b2 Hz?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency of a 2.5 m wave traveling at 1400 m/sxq2(z osfy5+mgst cfwj7 l: ,8?

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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/mesqo/ bi.b 3*p0q5sar is under a tension of 1350 N. Whqb/.i oseb3*sq5 ar0 pat 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 c5qny--ns9rb n3 btjg t2-x/d kli4) b180 N. What is the velocity of propagation of transverse waves along t4- b-qnnktditb3cx/g n2j s9b) r l5-yhe 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 travelikapy m ,f jvu4.li6v//ng down a 500 m long wire whose tota ku/ya 4pi6fv.,mlv/jl mass 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 transverse4gf g -2e6owxo 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 og x- o6ewg42fof this string?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a guitar string has a fundamental frequency of 500 Hz, which one oqo4uvkp. 30kd 1h/h 1ozeu9o qf the following frequencies can set the string into resonant vibratio /z u1k q.1 v9oq0k4hehoupdo3n?

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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 a77bzl;x 35ne9pu ms yo standing wave driven at a frequency of 480 Hz. What driving frequezoex73m 9pybl ;n7 u5sncy 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 wijz ,;ac36vf zt3v1w1m6w ndxith a standing transverse wave pattern containing 3 loops. What frequency is needed if the standingx6zdvc6wzaf1 ;tiw 33 mn1vj, 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. What sh vkw0gr62di p.8ka o0oket2*would its l.* op0k22it 0e w68radk wokvgength 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 harmonicmkp1g285)watme* e8 lv o)i txs of a string of linear mass density 2.00 g/m and length 0.60p 25wae 8*8ektm) m)oilt1vxg 0 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. When the strintg,ok9oyb 2gxfe3y ,kyf8l 01g vibrates at a frequency of 85 Hz, a standing wave with five loops is fg0eo3 xyf2ybkgk18,lt9 ,yo 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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