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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 proc3ns lglr)gv ox 8g;3y:ess 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 tlas e yv*y/xo1/ai9t 6he

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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 displacementwt0vb:iy9 b sut0okp4er-5 i / from the equilibrium point is ca/pwois ritb k9:eyb4tv5- 0u0lled 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 mass is at its maximum ) ;lhcs v(1bjf7x)5wzzsdf h4displacement from equilibrium, its instantaneous velvzc)fl 45b7;jh1 f(xhsds) zw ocity

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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 pf1 tz6vl6* p hastsqz-38gkkts:k*s:asses through the equilibrium position, its instantaneous 3a-6ks6zlt:*hs ttkf1 s kg8s zqv*p: 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. -pebw x96os7s When the mass is at maximum displacement from equilib6e s-o wxp97bsrium, 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 vertical spring and bobs up and down betwxd e/3hpx *b/veen points A and B. Where is the mass located when its kineb/d3x*phex/v tic 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 vertica 6gz ig8dak/ kxo2xf0;l spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is a kfoak/gz xd260ixg; 8maximum?

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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 poii -ufbx : 5x7flprchjx03g9 s7nts A and B.hjpg5xf0xlxrcu-sbi779 :3 f Where is the mass located when its potential energy is a minimum?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and dod fs k(k9bef48s0lyx3wn between points A and B. Where is the mass d9keb ys4fkx(s f38l0located 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-ae 1pl5h6qpot;.. 5 7ahzwvtsb;1r nvrnd-spring system produces what effect on the syv6tpza.5 ;vhlpbe11; 5 nos7.tr hrqwstem'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 ofbg mvc5hc*;w l*3 bodsc;(c6ba xd4-c a vibrating mass-and-spring system produces what effect on the systebvd;4;cxcc (b m6- whcabdlg5s o 3**cm's mechanical energy?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the spring constant of a vibrati-nabj gb4c3;z2tz, mwypg8w(0bacf /ng mass-and-spring system produces what effect on the system's mechanical energy?nmbzjcay0z 2w 4c3 /(,pb8f;aw b-ggt

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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 ksg1 e+ ;ta*cmj3 dc4kvg/-nz end of a spring, both on Earth and on the Moon. Where is the period the gag3ze/+c 4 mtsjdnv-cgk; * 1kreatest?

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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 causes what kindob8)frfuj 6- va)tgu. of change in the resonant freque u ufgjfo)8v- a.rtb6)ncy 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 ch fnac 29uc 7.0tdcft(zange in the re7cf2c9.0( d uacfnzttsonant 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-and-spring system causes what kind gmncnkbcd.w5nz/ 0v4., 9ejd of change in the resonant frequency of the system? (Assume no other changes in the sy.9cdmdz/5n nebc,jn.gk0 w v4 stem.)

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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 wb 0yf b9-:5 iqb2mstfe+bv, gqeightless string of length L. For this systemi50y :-btbv9sg+ bq feb2,mqf, when undergoing small oscillations

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the mass of a simple penlo4hh2o3zr8 h dulum is tripled, the time required for one complete vibrath4 zr2oo38hlh ion

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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 T. Pendulu+(mxyzm*/jmi mmt58nczp. k 5m A is twice as he(mi+ 5*z nz.jy m8t5cmkmx/ mpavy 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, the time for o6)dhpde(x/7ho1 k bubne complete vibration increap7bhk hb)6d u/(oed x1ses 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 its lengthfr :bdkh0d3 rgg;gz4u s)t:,t and mass are in4, )ggh:3kzts;gfr : utddb 0rcreased?

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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 t n:rcn2q2o:wf m-td9 fwice the frequency of simple pendulum B. Which sf of2n:m-2d 9qrnwct :tatement 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 acceleratio9x zqql1uvlqy0 3v90vn of gravity is less than on Earth, 3z qqvxvv9l0901 uy qlthe 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 representsxknc/ zo7ame,1 b 7fw)


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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 repr2)feo /xb;eq-wm/d vgesents


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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 rep; gaz; ezxaa,/resents


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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 thegn 1u+.:fpe3stolsc nr v1,;ggt/a g4

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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 :imc a1 ;v9js/hbn7qspoints of the wave from equilibrium is called the wav7csa1v/mq ;:hjsnb 9i e'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 cr( q*cowgb*j ( +nbp/me we3rs4ests 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 (up pjfcrj5cb7 s)2skp81:r; r;a vyvof a wave passing a point per unit time is called the wave'rja8(v7yp;c ;u 2b15 r)pk :cvprssf js

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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 frequenk tt v6hbktm c4ai lb2/,)rf17cy times the 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 incredyhb8 0vkbv31xxs 8*a ases. What happens to the distance between successive crests if the speed remains* xkys3v bxv8 ba80dh1 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 wavele 5: vb*kzq8mu-; agrzangth l and frequency f. A second wave on the same string has wavelengtrbqkguv8*az5 zm -a ;:h 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 waxn hn(xj,;4z yve on a string of length L, mass M, and tension T. A stay;(z,xhnxjn4 nding wave 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 leng(h;u nk z nr3j48 or1e5k/qx1hqeeo4nth L is under tension T. The speed of a wave in the string is v. What will be thokej4r n1hqee /3( 8 1on;nrhk4x zu5qe 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 L (mz3p( mz,/ mlqlty: cis under tension T. The speed of a wave in the string is v. What will bm3t, /(zcmp z(lql:yme 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. n9avo:b;the + : kmf2r The speed of a wave in the string is v. What will be the speed of a wave in ther kv ;btmh 2+ofn:9a:e 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 transverse wave. As an S wave travelkg v v:,w nl8v 5mi(1fxubb, e:3h,iucs through the Earth, the relative motion between the S wave and the particles i:1(ib m u:uxecv,8v, g nivk,wlf h5b3s

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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 throuc/2:s ciz .vhvgh the Earth, the relative motion between the P wave and the partcvs .z :iv/c2hicles is

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity of a wave i+cc 2axtc26 t)8dgbit )2lmjws

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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 c8, s17x6zp9ra gffhl thin cord reaches a discontinuity where the rope becomes thicker and heavierg6p189rc, fahxsf7zl. 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 pass each other on a 94 ap1r ug0yyastring, one is traveling toward the right and the other toward y094a1prygu athe 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 towa2k cg;-pr oe(crd the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negative direction. At the point to ecc;rp-kg2(hat 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,d xi zw:* n;y:ahp+*1ok4rhtf 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 tensiox jly5( (qpz-kn in a violin string, the fundamental frequency of that string will increak ( jl(yxq-zp5se 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 couxse x 8sq.28+ st0slonstant of a spring that stretches 2.00 cm when a mass of 0.600 kg is suspended f8loxsss+u2.e tsq80 xrom 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 spri(e1jrr /5ga6oh7i 0sts v az5lng of spring constant 60 N/m along a horizontal, frictionless surface. The spring is initially stzr7va gj5(0h6o s /se1a lri5tretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the amplitude?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a springq2+kcy hkr-su)1nh) m 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 oscillating. What is the peri1q) h )muykhks+-2rn cod of oscillation?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constant 60 N/m alo*w/l+z whgl 3lng a horizontal, frictionlelglw*/w3+lzh ss 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 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 through 10 comm(73yep m 4iswfa9 l:aplete oscillations in 5.0 s. What is tps lm7f wie493(a: yamhe 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 frn as s6i x10monp j.e/nicss:65:co1oee end 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 is 0.30 m from its equis eo1 n10nsj :56cpisica s:6/mxo.on librium 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 spr8hs8v uuscw6un3 m( 5vz ;e(tking 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 equilibrizh ; wnts6u( k(vuu88me3c5sv um 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 8.0 J at thisdi) ctu.()y zg time. The mass is cut in half, and the system is again set in motion with amplitude 4.0 cm. (yu)c)tidg. z 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 springen+mq /o edxh,a:1jg4fa18r s 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 amplitude/ 8ejnx4e,fh q+mgds 1o1aa:r of vibration?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a spring of spring constant 20 N/m albs92thevq. uhxx) .h-ong a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at qvsxxthb. 9hh)e u 2-.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 tol6s7)m+ ig usz the end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10sg u7 ism)6zl+ 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 of sonw(ozjqr x io:-+)t7pring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What)r7xjoi+-o: wz( o nqt is the total mechanical energy of this system?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth from tw q8 a*0j4nosohe free end of an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What is thasoo 80 w4nqj*e 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 cmzcdu aoat(, okvn ;u2x,5ng, 6 from its equilibrium position and released. A fread z (tov6uo;g,5uknn,,2ax cquency of 4.0 Hz is observed. 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 spro) hn fasru,31ing constant 10 N/m. The object ishofsar,1nu ) 3 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 1p5ggnhk, y,e+/1yb .;(bajormg;e xr0 N/m. The object is displaced5 x.g(gpm jh1aee,;rbyybo+/;,ngrk 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, displaced slighdlw80 :f exptvw*)rq (tly from its equilibrium position, and released. What is the frequency of its vibratw():dqflvtrw x8e 0*p ion?

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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 oscil iv e5zf4nyar*jz5(c (lates at a frequency of 1.27 Hz when displaced a distanc(z4rfae 5 v5j*ny ci(ze of 2.0 cm from 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. Mass A uk+la gj gtd31(lk6c+ )7t dfxvibrates 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 mkl) 7a+fdxjt(+ 3dtcu1kg6g laximum 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 man79xlu1znj/0/ 6p/ tlokfjqfg/ 5qfmss stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Cal9qfj/k6//u 7nfl5gnx0mp lo/q jz1 ft culate 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 wedo (7s9d (qi;h rh.wequilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an7.(hewod swid(; 9q hr 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 .j np(8pzdkvfu3.v/w a spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulledp.3uf.vwk(zjv8nd p/ an additional distance of 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 harmoni(f;7zcek/yq wc motion obeys the following position versus time equation:k(c qyef/zw ;7
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the amplitude of vibration?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motion obeys the followi so,; ujy aiu5no9dc*,6v+a jyng position versus time equatoa y,viaosnuj9y + j,6*cdu;5ion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 obey57z 2 w:1o* deeaiptpis the following position versus time equatiew*:i571io t2ae pz pdon:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 harmonic mo 3:gfl kfrpz 1a-f-i5ption according to thak :3pflf51pr-z -if ge 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 20.0+bzn6vt wqij;*zff 3 + N/m oscillates on a horizontal, fricti v6+jqf3z*i f;+ztwb nonless track. At t= 0, the mass is released from rest at x= 10.0 cm. (That is, the spring is stretched by 10.00 cm.)
(a) Determine the frequency of the oscillations.
(b) Determine the maximum speed of the mass. Where does the maximum speed occur?
(c) Determine the maximum acceleration of the mass. Where does the maximum acceleration occur?
(d) Determine the total energy of the oscillating system.
(e) Express the displacement as a function of time.
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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum makes 12 complete swings in 8.0 s smi6t3k/ i.7qvje su2. (a) What are its frequency and peritivsjuq/ 6ei3 2 sm.k7od 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 peg:eryjbku,ux *2 g1/m riod 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 peri/cfym:fq 8y ae f.i11of1:op dod of 2.0 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 grand vi(3ct/vloc* p2flfg zma)/(father clock is 1.0 m long. What is its period on the Eartz(m) golfvlp(f2* ct/ 3av/ich?

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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 clockxzz8lisz m.z :2p)sm 5 is 1.0 m long. What is its period on the Moon where the acceleration due to gravit8 l5. mm zzs2sz:)xzpiy 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 1 t oe1xp0( (bc/n)pgztz u1anattached to a massless string. When the mass is displaced slightly from its equilibrium position and released, the pendulum swings bz(et 1p /xb1 znon)a0g(utc p1ack 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 displacementcq vcz+ *.kkznhnz. 9; of 8.0e. It oscillates with a period of 3.00 s.kc*zn;z+k cq.nhzv9 .
(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 frequenw, 7bfd-jzo3fcm 2i2 jcy of the wave is 120 Hz. What is the amplitude?o2, -c3df2 izm jbjf7w


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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 v.max onf:pubj xc 3 :y2*b:+rfrequency of the wave is 120 Hz.bc by:oa:j.xxm ru:*f32 p n+v 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. Tww-+ve6/i c:myb 5qim he frequency of the wave is 120 Hz. Wiv wcmwbq 6my:5/-ei +hat 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 yp7ku;*x4c1xvofse-o;4mgegta 64 c 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 frequency of 1500 Hu/fp8p; 2w vjtp: dw1g0 grv:vz?

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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 wa: ogvyrsx(k4 k z ,+jkef(-/ievelength of 3.0 m?fxy:, ij(es rk e+oz-(kk/ v4g

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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+yu1:agai,ntqm z2y 2qa43kt and a frequency of 12 Hz?a2a2 uy y3,:tz inm1kgqt+ a4q

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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 travelek n3qkw+dqn sj5;)2 wing 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 is3i9+jz8r semb under a tension of 1350 N. What j e3s8r mizb+9is 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 tenb3:bo6zvui7po 5e l4zsion of 180 N. What is the velocity of pol zz76o 4euip:bbv35ropagation 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 long wire whose totf0 l(qbkr*z(q a nk*:sal mas qlrzsnq k( akf*0b*(:s 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 transvey c,lb0kw paj 33arw.,rse wave on a 2.0-m long string fixed at both ends is 200 m/s. Whwjk, ab,0wl.rcpa3 3y ich 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 fundamentap1lr+pbe .j4hl frequency of 500 Hz, which one of the following frequencies can set the string into resolj1b4.r e php+nant 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 observk zten: m9e.97tuqi s.ed to have four equal segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wavtm.9 kntq.7ue:iez9s e 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 os,9; i t-qbqo fkmxtl(/;g ry*f 12 Hz with a standing transverse wave pattern coymt-q* grks,qt(oi/fx;;l b9 ntaining 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 debjajlcg ck.dhop,,s63 +gb. dni//s (nsity 1.5 g/m is under a tension of 20 N. What should its length be if its fundamenta .,/bsnbsjhgp3/oilcc, k d.jdga + (6l 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 g / 8burwyy2d4mass density 2.00 g/m and length 0.600 m when it is subjected to y d/ugy 84bwr2tension 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 vibrat hs9.quq ajhx9b ,+dds: ;+(kk2qqatces at a frequency of 85aubkhjq :9+qtds q2 + h9a(xcs,.k;qd Hz, 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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