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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 period*jf2, ys uu6vtic 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 unqi+sxao7 ,l6v it 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 equilibr ok3 de(1dgya/ium point is cdoegak d /1(y3alled 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 m7a 0- aeylda:kl 7cyj4ass is at its maximum displacement from equilibrium, its ia:- eja 04l7 ydca7lkynstantaneous velocity

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. When the mass pa:wg9aa w-gf;psses through the equilibrium posipw:gw9af -;a gtion, its instantaneous velocity

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. When the mass is at maximum displacement ss6ec(nr-if4 6 y- fzx*mo8hpfrom equilibrium, its instantaneous accelerat pfif hs4y*(se-8o nxcr66-m zion

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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 dovr+0t5id;i vi/y c s*nwn between points A and B. ;ic + yi 5sd0*vtvi/nr 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 spring and bobcx) nc 10n1v fgh6lra5s up and down between points A and B. Where is the mass located when nx1f0v n51gc6l)ac rhits 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 vertical spring and bob)7 yk tb5p/wpo6h,rjss up and down between points A and B. Where is the mass located when its potential energy6o7 s)j b,k/hytrwp5p 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 vertic ()on, /zw ;raze(n(r e4s90rwxosnn tal spring and bobs up and down between points A and B. Where is the mass located r,9zwx0szonrert;()w( /sean 4n on(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 syspy4 //dx uvd k2;fnh9xtem produces what effect on the system's mechanixdfh9;n / /vud2kyx4p cal 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 1+b;f mmwvx3 lqq8zb f/ yb);neffect on the system's mech;+) m qwlfbbfxbq;v1z/8nym3 anical 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-spring system produce t;:9/dgf2m 6qhyr-pgulfa/7i ssic 8 s what effect on the systsyt 6qsf / hr2:dfgimlua 8gi -c9;/p7em'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 the end of a s5uq ojykr,a3r:tc1y v-e;b1upring, both on Earth and on the Moon. Where is the period at oe:kbr5qvyjr1u;y c3u- ,1the greatest?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the spring constant k of a mass-and-spring( t dr6v -*tsr(5/pp ef -ds4pem1lqhx system causes what kind of change in the resonant frequency of the system? ph6x s r e-t(qvlefd45mt-*/(pp1 rds(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 kindb/btn0 humh;* of change in the resonant frequency of the system? (Assume no change in the system's spring con h0mth*;/bbu nstant 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 sysjn6ftmca4)2lloa: ;, 8o ykxctem causes what kind of change in the resonant frequency of the system? (Assume no other changes in the sy )4fjll: , oc;nat8 y62cakoxmstem.)

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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 wecjj) 1w9ooim 1r9 u,5w ypy3bvightless string of length L. For this system, when undergoing small oscillrjw1 yjyo95)3u,v9ombi 1wcpations

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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, the time required for g2;.zw8* *fam*bxj l0 shll c6-kmdzrone complete vlcs62 ;-zjzhlmr*d*fk wm8b*gl x.a0 ibration

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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.o sa:4bcs w u:i jvvtfe(te412ep)+7 ,fb1j iz The period of A is T. Pendulum A is twice as heavy as pend1:f,b)1 bwive+4vs:ai2spte(t cf j 4u7oz ejulum 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 one complete v44 hriz4,ueg j7urx 5aibration increases by a factor o7rh zix4uj4g, u54ea rf

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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 frequenfirr,3p1wjjh+fd gb4- )jn q,cy if both its length and mass are incd r41j,3) g-jjihfrqp w+b n,freased?

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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 frequency ofn 1c ;e*xb(yzd simple pendulum B. Which statement is (1e xn bcz;yd*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 -zxhpu g4hmb/20;g tl v +k:avto the Moon, where the acceleration of gravity is less than on Earth, the resonant frequency of-kxhv: 4t ah0m/bz2+ gglvup; 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 v+/ugqst/ p(vvs24d 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 reprsndmyd oh 1:q c)+ant9o+6s q+esents


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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 repren8pve z r qim2k(6/jee -1ymk0sents


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, thedo:lzne- o(/p amplitude 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 equilibff subsjqg6; * 6k8vh1rium is caf1sqs8bg 66kf;j *vuh lled the wave's

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The distance between successiqgtsdsl2v87 tdasr2)i gu(f1 q369txve 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 calle(d b)x2*v-3uqwt w) cnduyao j ru*;4sd the wave'b3yd; d(x)q4)tcus*-2 rojnu *vauw ws

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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 freque8w zt/ddo 4k(2-szzdk3s . iqkncy 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 increases. What happens to the distance between succesk/ecen 1u4 no 4*y9t-kk7jq jksive crests if the speed remains constank97qk4ye cnntj*ju k4e-o /k1 t?

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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 wavelw9iysuw1-;psz )w 03)c jsdf rength l and frequency f. A second wave on the same string has wavelength 2l anrw)u 1)ssfz 09 p-di;cywwjs 3d 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 b0pcga9 t1,ll ,euu6bL, mass M, and tension T. A standing wave is set up. Which of the fol16u,gt lb,b9up al 0celowing 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 tension T. The spevv qoqd/ -m)io 6zft//w*t2gjed of a wave in the string is v. What will be thf2go)t/ w/v qt- i/vj6md*zoqe 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 is under tension T. The speed of a wave in th6s7o ak.vxvr;6qz6fa+ h o(mre string is v. What will be the speed of a wave in the string if the length is increased to 2k+6;fa q rozavsx6. m (6roh7vL, 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 un6;lxk-o wvk5x1 w.xsmder tension T. The speed of a wave in the string is v. What will be the speed of a wave in tmw5;ok6-wxlx vk.1xshe 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 ci*snvt6r41b6bv(3* gfn nw s a transverse wave. As an S wave travels through the Earth, the relative motion betw n (ntv*i r 63bbg1s4fs*nvc6ween 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 wave is a longitudinal wave. As a d i1wdy1 ;km(eP wave travels through the Earth, the relative motion between the P wave and the particl(iek;wmd1dy1 es 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 wavimg 6s4lgqlow4j4f *:dtegk+g ,ah+: e 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 discontjlnnr wq.b d3gt4at*u8 og/i9hd2r */inuity where the rope becomes thicker and heavier. What is the orientation of the reflected and transmittetng// rld983j nwat2h *bq.i*4do ugrd 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 string, t+gtu08 you 7uq; ssp.one is traveling t8;.uoq0usptu7 gsy+t oward the right and 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 th:+3ybjhtz2).u0mt zlawm sj6e right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negative direction. At the point that they occupy+:b yz6. szutht) jwm23ml0j a 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 wh m8qpl)f/yy x(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 viod+jl6cn sr c) iogp(gcq9m 1zhv*+4c(lin string, the fundamental frequency of that string will increase by ag)jcn cz+r4 *9p(6 cs miq+1cdlg hov( factor of

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the spring constant of a spring that stretches 2.00 cm when a ma1 u4cc. lk*cn+i pwgg2 )ka6hiss of 0.600 kg is suspended from iiig.ka1lcn6pu h) gc*42cw k+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 a + lf;izdjups,ag 1nyy,y / (k h(m1em(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 (hlfpygmj 1nkdya(,(1, ;sui yze/+m 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 constant 60 N/m along a hopvnqex uo (j4rhd;53g;+ n+t arizontal, 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 positirn4t u(gne+v o;hd+x3 a ;jq5pon 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 sprinqsckfz8i/p7r-4 o9a5ko mng /g 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 tca p8 4f5-/ ngo/km97isoq zkrhe 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 tosu61* ffwn( aiuwk1 .km d **lz6g,xgoes through 10 complete oscillations in 5.0 s. What is the peri*6utilmn*1 w k( fa6fz*xd,o skgw1.uod?

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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 aq:l 9a*b k: tk,tvg1dan 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 il19::ba *,vkagd tqtkts 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 *zw6- do qa6h4/it kujs2 0tblspring constant 20 N/m along a horizontal, frictionless surface. The object ot26h qlab6t ws-/dk0uzo* ij4scillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. What is the total energy of the system?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass undergoes SHM with amplit1.,mdgfi(re 9fet8a r ude of 4 cm. The energy is 8.0 J at this time. The mass is cut in half, and the syst rem fr.8tad,9ig(1feem is again set 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 spregxn42wc*(x i2 hv-m hing 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. Whatex*(w 4hx2c2n gm vi-h 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 spk.fas4qpi :q.v fgk pwu/+ 4lp 8.ns6nring of spring constant 20 N/m along a horizontal q 8in/ q..kkw:gsl 4pp4suf6a.pvfn+, 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 same?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached to the end of a horizontal spring of spryz)bd77obzf: teir 9 *uqj/4ting constant 50 N/m and set into simple harmonic motion with an amplitude of r7/ i:z btzo) e79t4yfbj* duq0.10 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 attxdh3g h6f9cv - u/-h51lczso xached 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. Whaf5u3c/d9 soxhz -1- 6xh ghvlct 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 the free end of an ideal spring of springpq (31u 5gt9b7xppnf s constant 20.0 N/5 fnx7putgqb3 1p(9spm with an amplitude of 0.250 m. What is the maximum kinetic energy of this vibrating mass?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of a mass-and-spring system is displaced 108gaamba9rel**vf k ,1 cm from its equilibrium position and released. A frequency ofrb a8mk9e,lava**g1 f 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 spring constant 10 N/m. The f mh+x e*q(gh3gm s(n*kw3q h4object is displaw3n hgk(hm*f3mqgqx * 4+e h(sced 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 av -hv-a5pkc; do6ytt6 t 1(tfe spring of spring constant 10 N/m. The object is displa(- etpk t 61vfa6ovtch -y5;tdced 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 sp6rp29lqrt7 g fm4v5kb +)vqti ring constant 18 N/m, displaced slightly from its equilibrium position, and released. What is the k)5 f9vgi+v2 6tqbrmq 74rl tpfrequency 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 sprin 3dwos( g4cz.cg. It oscillates at a frequency of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum velocity attained by the3.c ( c4zosgwd 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 sphztk63 i wj ,mj0toh6bwe7u *0rings. 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 et,ujw7z 306k0h boihw 6tm*j 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 stretsbakh z+-i;b 7ches 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 perbbzh; -k+ia7 siod 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. s(ygv.fo*tso,p 3 up;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;* y.vss g,oupt3(po f 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 u:5gn(;yv3jfni(bn8 cic:)ed*iau x stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released f(a:)3;gfui * e8 i:j(nin xudby 5vnccrom 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 6cu;cs xxbo++:os1 a nharmonic motion obeys the following position versus time equao1 ux+ns; :6+cxb asoction:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 following position versujo+z 8iu ns43ns time equation:n3in 4uo+s8z j
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 foljp )w*l( spo49di/ejsx ,k)uwlowing position versus time equatio*4(,s9io/pp)wud k ) lsxjjew n:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 th)wd usvx5q k8ii:2t)a e free end of a spring executes simple harmonic motion according to thei )8t)aku2vwq x :d5is 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 N/m oscillatei2y wi2dciyl,px*v )mv.a:u (s on a horizontal, frictionless track. At t= 0, the mass is released from rest aviw (x2yvy,l2.pcmi*da )u i: t 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 tmk1q030- u-qg wzyeg.0 s. (a) What are its frequency and period on Earth?wg 3u0 gm-qqe1-tzk0y

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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 ik:uwproa: d t9*+h ,ybts 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 pero.5w 6wwnwu9fiod 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 grandfather clock is a vi(w)o :2yaa+2,jx8zg crsj1.0 m long. What is its period on the Eai8jrwas,+ yv:ozag )(2 c 2axjrth?

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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 on the Moo ys4l xtd5*h6yold5s 6t4* hxon where the acceleration 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 e6ut*uyju4 s8 massless string. When the mass is displaced slightly from its equilibrium positioe6y8 u*ut4ujs n 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 h3 ghq31*llm xias initial angular displacement of 8.0e. It oscillates1qligm3h3 x *l 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 j3 wqc*+rf as2wave at a given time. The frequency of the wave is 3rjw2qf+s ca*120 Hz. What is the amplitude?


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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given timezm bzq n)rnj 0(k08t*i. The frequency of the wave is 120 Hz. What is t(z 0m nzn8tkr i*q0bj)he 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 a5d;w fy4jaargdk9jr tm s/ m9+u5-;zc wave at a given time. The frequency of the wave is 120 Hz. What is the wave spwsa;ftr5/z; au+ j - cjgdk4m 9d95myreed?


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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 whicp6ds*( y:re1qi-wsrav +q ft 8h 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 frequency of 19eowpq xqkh78) f883n+ lzdmj500 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 aq35 wwa;l6 x kqje,k7ifoh7l; nd a wavelength of 3.053qka 7 xlelfoh j; ki67;,wwq m?

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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 /x5sftqei*x/ fw6 b.f frequency of 12 Hq* 65fxfit/ wseb f./xz?

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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 14o* + 2/p.czjegadet-b9cz.omf cc ./fz :pzy400 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 ksz-w3;4tfpry f6d 4wv 4rzu *6jbnl lh ee;n1,g/m is under a tension of 1350 N. Wh4vl4e6 z63yf- pw*f1b hr;rtnd4 ez wu;,nlsjat 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 ujy;7ntgd c-k9l8l 0lynder a tension of 180 N. What is the velocj;-dyytnk c9l 087llg ity of propagation of transverse waves along the string?

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92#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A wave whose wavelength is 0.500 m is traveling down a 500 m l12yuo v(lpq0l*ve*x7)r epwx ong wire whose totl( ep* l0oy*2qu) ex7p1rwxvv al 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 propagai 7ol/6otfzuzf k02s.tion 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 s7l20t6/ oki z .zouffnot 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 vdk f5obsepyc32zb 5d .,*5i wfrequency of 500 Hz, which one of the following frequencies can sec,fwv25* s kyde5i .zbb53po dt 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 equzs; .d.g3 na4xdkij/ral segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing w/ar.3.n ; dkjdx zgi4save 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 e9 o jdl)6ot 0.u 0ymqb7swifl;nds, vibrates at a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the9;l76 m)d qsfob.j 0yiw0tol u 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 0aoy+( dveu k w5 6mnj8)cowzq:g/d+gunder a tension of 20 N. What should its length be if :qcdwgvw8 ae+j yud 6zn( o0kg5 )+mo/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 density 2.00 gm55.r*gnb 5+(vxafcv br) ilp/m and length 0.600 m when it is s*5bvfr5lr pcm b+va.inxg()5 ubjected 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. tef)n37fr*py l/me*5zjk8 u z When the string vibrates at a frequency of 85 5 8)yu/n7 rp3tj**el kmzffzeHz, 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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