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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 cycl ce)o+hqou1t( e 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 of cycles per unit time is called thd p5;c2peo ,2rtjxh)2avoqrt0sh h;5e

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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 equilibriu+ nncs.be9n fszwa5x,.-4p qhm point is caebz ,s..sc+n9p 5-4hfq nxnwalled 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. 9l l,-r/tvucmu q0jt) When the mass is at its maximum displacement from equi 9cl/jv)uutm -rt l,q0librium, 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 uog 5;sy b32(1j anw1l7qo 8 t7jjodzqvndergoes SHM. When the mass passes through the equilibrium position, its instantaneous velocisozojl(w1jy; qb72t83avd nj 1g7o5qty

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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 undeq+b90q/mq+ ykbimb z4 rgoes SHM. When the mass is at maximum displacement from equilibrium, it 4 k9+q+q/ybmib0bqmz s 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 vertictc , r x*x*s; 5nlw:2r idcnbllk;+na(al spring and bobs up and down between points A and B. Where is +sk2wln:t **ci, b ;ld(nlra;nrxcx5 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 spring and bobs up and down bz* yze) sy7m;fetween points A and B. Where is the mass located when its k*yfse zz)m; y7inetic 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 spring and bobs up and down between p:4 e7-4 . efyxkkcaa7z)ok)argdo4 u coints A and B. Where is the mass located wh)dg k7o-k4.e:ox4 af kz4ua) 7cercayen 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 verti8d9 um) * owlbpm:.m3hg.czgbcal spring and bobs up and down between points A and B. Where is the mass located when its potential energy is a max 8wb9* mb.l.:og 3 pgdh)cummzimum?

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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-anoi)p 8aly0n +zd-spring system produces what ep+o0zy8ila) nffect 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 produces what ef6ngtc.u,u noi4,t0 tyh 1x7mdb6hjo3fect on the system's mechagmduu34h 1xt. ,bt7ono66nhyj ,i0tcnical 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- 0u;c6svg .emvspring system produces what effect on the system's mechanicac0s;mv. u gve6l 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, iq f b3 -cu3g*7nu2wx,j zmrb.b92sbnboth on Earth and on the Moon. Where is the period the9w 23 mnuixbucz*bn7fbg r-s2q 3 .j,b 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 ar u , *.7grkzdnv,(xha mass-and-spring system causes what kind of change in the resoa* kvz,, (rhdgrnx. 7unant 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 ki5y(mzbg +:),qubgwd dnd of change in the resonant frequency of the system? (Assume no change in the system's spring constant k,b d)wzg5+myu:g b q(d.)

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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(sfbnj2,e gx wx 41uj3 in the resonant frequency of the system? (Assume njwu23 ,xx1bg sf(e4jno 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 consi 9it(el 3 zn.wdwmc da3oq4mife)5-j-n-0h vs sts of a mass M attached to a weightless string of length L. For this system, et n i).3-ma09- jsmflh 5(34iwq-zwvedcd onwhen 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, t xxmy0wecpb f)98u7a 7he time required for one complete vibr 9u7cb7)afyp8xx mw 0eation

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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 period of A is l)y xz:oe2ai 4iei0 14s0pousT. Pendulum A is twice as heavy as pendulum B. What is the pxi )40seeu oa1o2i lsi4:yz0period 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 pendululbf4429x g o.xyow .oipj,c;zm is tripled, the time for one complete vibration increases by a factopcjf g;oxw .ob,9.oz44ylx i2r 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 ia-d k n h k-ft92381k2rqfmjqdf both its length and mass are increa n9 m1k 3t2d 2a8qrfkkq--fjdhsed?

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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 frequenc ed wdm3 s lb;)0b tj3l68s4qgbg+-tnsy of simple pendulum B. Which statement is corn3 e)-qlsbjm stbw 3ddglb6; 8s04tg +rect?

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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 accelerationh 8.bootf-/ xh o5,nli of gravity is less than on Earth, the resonab8of5l, nh/ xht-ooi.nt 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 rep;m8eyy dgtcr 8b,-vt no,;e8 presents


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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 repre f gworfyio 23:2cda 55ti0*llsents


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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 re/alxh4uruybj d 0v 6,v2pa :q*presents


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 :h0 9idrxz+fznd 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 equilibrks2+xyn b *z/x2h: lyvium is called the l:y*hs v/kxy2n 2+zbxwave'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 successivkj:pact9tj:wj3 ttvn 4 a(8 q;e crests 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 called the wave' mi+bt;rgb uxr;f,i 4+iur 4gb ,x;fb+r mt+;is

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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 sy*mzu -d32/ab;czynv ji.j q* y 6/gewavelength 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 )no15lvwa u2 jthe distance between successlo5wj2 v)a nu1ive 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,j )oxm/k u-bd second wave on the same string has wavelength 2l and travels with t u oj,/-bdk)mxhe 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 wwitbs4x/ t 1vwpgp/ :1xkuiawow.;:ml- d1: on a string of length L, mass M, and tension T. A standing wave is set up. Whipi 14wdvaw.k1t/xo:-:w 1wipm xs : bluw;gt/ch 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 :i8ufof*j8. hnu6qollength L is under tension T. The speed of a wave in the s8uh q:f.68n jloo*iuf tring 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?

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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 anstv ujy:us n ( de3kc;b5r)7l:d length L is under tension T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the length is increased to 2 ty elc:3b ;srsv:uk ()n7dj5uL, 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 uc3m5v p(zi5;4ucsg 7ampw0gnnder tension T. The speed of a wave in the string is v. What will be the (5gcpuvn0 wa3 mgsc z5m;4pi7speed 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 tr2 /8j cx r(tlocjmtx5(ansverse wave. As an S wave travels through the Earth, the relative motion between the S wave and the parti/t5j (xxj(ml2c 8t ocrcles 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 longitudinal wave. As a P wave travels throu8a2r seh e6b0tgh the Earth, the relative moth0eea8b 2 6rstion 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 wqs-+ q ga8p1dpb 6t)ss*jb y3eave 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 rig 98qox,g2ty4v8pusc a ht along a thin cord reaches a discontinuity where the rope becomes thicker an8uv spcx t8aoqg4y9, 2d heavier. What is the orientation of the reflected and transmitted pulses?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two wave pulses with equal positive amplitudes p,j8nh vuqk *av61mrzcg+ d9t3ass each other on a string, one is traveling toward the right and the other toward thvq9zdhck *6, r1tm3ngj a+v8ue 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 xy 4lypvd.n06c6 piq-. The one traveling toward the right has a positive amplitude, while the one traveling toward the left has an equal 6idxnpqy.y -v plc460amplitude 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 whybmu3p* o:sgji/6 3pr6 ewj8rdgco 8-en

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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 violiqk .n bc5e,4mln string, the fundamental frequency of that string wilq.l nekb c5,m4l increase by a factor of

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the spring constant of a spring that stretches 2.00 i,f.6 zcqqr5j*( mr eqcm when a mass of 0.600 kg is suspr5r q qje. fcq(m,6i*zended 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 ans t2 /v ech0t2(v,dws 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 0.50 s to go back to its equilibrium position when it is oscilhwv/2t 20c ,vstens( dlating. 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 cons/( me mo/9pwwuj 33s*snwc(bitant 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( sbn/*wewop wui/93 3m jmc(s. 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 o1;7) zanx r, f9oittwof 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 oscillating. What is the frequency of ;rn7f) 1wxti9zot,aooscillation?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. It goes through b 3 giy:y(4cl,t5mjth8(x myx 10 complete oscillations in 5.0 s. Whay y,tm(t(cbh8mgl3j: ixx y 45t 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.a:v* rryh 9l*t ly+a)zmqd,3* rkipl of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of this vibrating mass when it isd ,rtl)ql y**.r r*3+alkimvay :pz9 h 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 offc.b:yj8w*8u n delxxv 6p+t 3 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 .dx exc3+pyljt6:u wb nf8* v8equilibrium 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 adgyu .xc)f/;ac*5wa pxp 3fd+mplitude 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. What is the eneypd35dccf /.gxu*x )f+ap wa ;rgy 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 2.(w q5tdo+u,l zb5j zg0 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has ,o5g.ld (jz5t+uqz bw 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 constr y(louno:-5i2(e7i:f48aci xd khtsant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion a2a7k4:od- ytlhnr8o(fx 5is(iec u : ind 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 r2s-j p15o dc-ts c4untko w4(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 energy14jt-ss ctw2d onk-uop(5 c4r 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 of spring constantm;mmz)rw kef7 l:xxc/ ij/ ,b+ 50 N/m and set into simple harmonic motion with an a:lf b / mrk7xjwx;iecmm,+z/)mplitude of 0.10 m. What is the total mechanical energy of this system?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth frou:hu2 ** 3rtlwq ff,ovm the free end of an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What is the q2w*o*h,tl ufr3f: vumaximum 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 equili8mced1 dnb: 8lbrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had be8ldm en bc8:1den 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 co )xjz7 iup0 fvd y54.z5rs*jto a spring of spring constant 10 N/m. The object isr.ozsz 5d54jv jyu 0i7px)c*f 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 attach l 8xk1tl-cdi8ed to a spring of spring constant 10 N/m. The object is displaced x8-1l k8lticd 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 spring of spring constant 18 N/m, displacej zz94j6ch yd9d slightly from its equilibrium positdz9 jcjzh964yion, and released. What is the frequency of its vibration?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring. It oscillates at a frequt je2uni*5e9cency of 1.27 Hz when displaced a distance of 2.0 cm from equili9ie*5cn 2jeutbrium 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,uhkay/y. (i 1c are attached to different springs. Mass A vibrates with amplitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5.0 cm at a frequency of 16 Hz. How does the maximum speed of A compare to the maximum speed of /a.uy1i( hyk cB?

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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 ma lqd6qmtt 8di5j*g* y x(c-8rass stretches the spring 2.0 cm downward. The masdqd 65 g*qjy(liar88mc -*ttxs is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the period of oscillation.

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibrium the mass stretches theoq3oh rho:xkk8v5m: 1 spring 2.0 cm downward. The mass i k kohhq:83o5vr1:xoms then pulled an additional distance of 1.0 cm down and released from rest. Calculate the total energy of the system.

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibrium the mass stretchexa/9*n(:m7qeds xe hss the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0dhq e/x7:esx* nm9s a( 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 harmon6wph,v()jnt2 d rp 4vaic motion obeys the following position versus time equat(p,jvnr 4v p2a)d wt6hion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 mo scpf c)*q+t2etion obeys the following position versus time equati+ ce2qp*)fsct on:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 popoi*(5o:ut nd t8ex 5ssition versus time equatid85ois t5p *:otxnu(eon:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 lcoj 5 ms8;0lea-o-piharmonic motion according tocpo- os-m ;ile5a08lj the equation $y = 0.50 \; \sin (18\pi \times t)$ where y is in meters and t is seconds. What is the period of vibration?

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74#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A 1.5-kg mass attached to spring with a force constant of 20.0e(o,p4 mi ojcjit:b0nx. (3e g N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x, j43ongceo0ej(m pi:b(i .tx= 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) Wfxe7vtc/u n7oi uv3e.7 d9g* shat are its frequency and pesn. x i 7v g9evd7ouu/cte37f*riod 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 7 odcq) kd35xw a:og3lm 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 *i-3o (mee2t tqoj ci6s 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 1.0 m long. What is its period vah s0an5t-1bon the Earth?0v15b htna-s a

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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 it g 3zeepq oh2gj+0o*1ks period on the Moon where the acceleration due to gravity is only po+ 0qjh 1zg*eegk32o$1.7 \; m/s^2$?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum conv7+,apv2m 1qeq +lhd ssists of a 0.25-kg spherical mass attached to a massless string.qahmlvsd 72vep1+q,+ When the mass is displaced slightly from its equilibrium position and released, the pendulum swings back and forth with a frequency of 2.0 Hz. What frequency would have resulted if a 0.50-kg mass (same diameter sphere) had been attached to the 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 ma nyn058j*oeliqph .+m c,z d*hss has initial angular displacement of 8.0e. It oscillates with a period of 3.lz0ynpd 8*5qnhcoem*i h +.j, 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 frequency of the wa8 u.voyh6b qgz;a0-f l :q1yctve is 120 Hz. What qbg:uzyc0t-qfah6v 18 .oly; 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 giv (-7mi0tlovy mngl/f)en( 6e ien time. The frequency of the wave is 120 Hz. What is (6eemv7-y ll oifni/mn)( tg 0the 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 ofw2wnr b8i aq(/ the wave is 120 Ha wn (wr8q/bi2z. 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 period of 6.00 ms?kn)*-* pt55jysa m3 dibqy nl0ce+8sn

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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 wavk a3b3 zcazw+,e with a frequency of 1500 Hz?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wave speed if a wave has a frequency of 12 Hz and a waver))7 0na f*brm7y yehvlength of 3.0 myy 7 7e*hf)rna0)mr vb?

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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.tv.bj*qcf .f00 m and a frequency of *f . .qfctjvb012 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 travelir(pget: 8 jiabqv/7c(ng 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 under*c+y,yglp jm:3 qo fc/ a tension of 1350 N. What is ccmyoq,g j p:fl*+ /y3the 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 18e u(xen9 .pu7x0 N. What is the velocinxeu (eu. px97ty 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 9s1 *ntjj9lz g0.500 m is traveling down a 500 m long wire whose total mass is9*zns91gt l jj
25.0 kg. The wire is under a tension of 2000 N.
(a) Determine the velocity of the wave on the wire.
(b) Determine the frequency of this wave.
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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The velocity of propagation of a transverse wave on a-dkij ae+ws6 +tl7,iw 2.0-m long string fixed at both ends is 200 m +67itsdjk alw,e-i +w/s. 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 fundamental frequency of 500 Hz, which n:ev0 r8lphh3 a 0jp1he *j,vc(:qtcoone of the following frequenc hjvehptjalc1e, 30novpcq :8(rh: *0ies 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 h5k wtzxz0vs(epc d56t) -jk +fave four equal segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wave with+ kew 0t s5x6 fkzd(cpjvz)5-t 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, vibratvi moke*mo(+ 6i)*jv tes at a frequency of 12 Hz with a standing transverse wave pattern contaii6m+meoj*(vk vti)*o ning 3 loops. What frequency 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 density 1.5 g/m is under a tension of 20 N. What)wna(vxcbo 9 . should its length be if its fundamental reso. ba9ow(v )ncxnance 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 dengcib4p4* vn6qmuwyu2 ;l i9; nsity 2.00 g/m and length 0.600 m when it is subjected to t; c64 wqmu9*vbyn gi;p2ul 4inension 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 string vibrates zd+s b ys5qg. myn ig.5 927h/g)jnfniat a frequency of 85 Hz, a stgjig /gh+9. ssf2 )dyzb 7m5nyqn .5inanding 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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