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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 process is cr yy- p54ra bd,4vh7pxalled 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 dujl-sw(sa( 7qw tm 8t,gn4,mthe

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For vibrational motion,nm czpqwtq76 0ol 62bwf;kg,, the maximum displacement from the equilibrium point is calz 6qnqpg k0 tb7,l26owm,;c fwled 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 ah 3q batwt 2/9d)k7wgat its maximum displacement from equilibr /a3hgd9q 2twwb7) katium, its instantaneous velocity

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. When the mas32 rdtk*mm.or .e9nds:ew4 z ws passes through the equilibrium position, its instantaneouszok: deet3 rm 9m4.wd2ws*n. r 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 th( (w41cev7 we semps:ge mass is at maximum displacement from equilibrium, its ps7:eegems 1v4(ww(cinstantaneous 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 upi2u)1c cxt:1cto6atp rji47m9i c s1c and down between points A and B. Where is atc tc: 1o iritu2p)mjs6x9i7c114c c 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 tomjik9 t1hrx3qs*yyi 6i)j* 2w a vertical spring and bobs up and down between points A and B. Where is the mass located whet9) x 1si*3qy wrk*2ih6jmyij n 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 a vertical sn 8fx *gfwju+b4x9fr 5pring and bobs up and down between points A and B. Where isff*8nwj x 59 g+fxbru4 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 tvw ngsi4rvspw8 , h+8,o a vertical spring and bobs up and down between points A and B. +r,w4i8 shsvvnwpg ,8 Where is the mass located 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 of2x lhq0nr)mhwy12 ,ydqy a2 5r a vibrating mass-and-spring system produces what effect on thyr5 mhql2drhyw1y ,xan)20q2e 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 systemt(u626 rry6is9 rusva produces what effect on the system's mechanical energ26 9rs yruu aitv6(sr6y?

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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 t(j;4bjht+57 axaxqk of a vibrating mass-and-spring system produces what effect on; a ktx+a4t7bj( qj5hx 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 the end of a spring, both on Ear b47yn4lslyue1uv1: coa g h,4th and on the Moon. Where is thee :av74g41lcyyu,lb ous1 n 4h period the 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 system lf 3je 3 itw 8)b2yu32rrr:rwqcauses what kind of change in the resonant frequency of the system? (Assume no change in the system's m)wr2:ryfe8qlutw32 j bri33r ass 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-sprio,d t343y,o;tkq wyn sng system causes what kind of change in the resonant frequency of the system? (Assumt syk; o,yt, 3nd3ow4qe 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 causes43 b0*tujzftw8bv* u15 7 zb 6mx2c 2hijsiljr what kind of change in the resona3jrizb078 52j1*tl mvj ub t*xswc fh2z4bu6int frequency of the system? (Assume no other changes in the system.)

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass $m$ hanging on a spring has a natural frequency f. If the mass is increased to $4m$, what is the new natural frequency?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consists of a mass M attached to a weightless string ofh/y)8m y kg.tx length L. For this system, when undergoing smallmh)yy 8t.gx k/ 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 pevtkg0 8t bq7bq 502xs1 n/ 9true4mglondulum is tripled, the time required for one complete vibratiok8gqt v4mt 0bl5t1 r 729 xeqnbs/ug0on

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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 l 0aybpk+ pk*ed ggz+ub)o8*p)ong. The period of A is T. Pendulum A is twice as heavy as pendulum B. What is the p+bpgekzd *)y+bkoa )p0pug 8* eriod 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+/lb h8 5x. d+a8c2wvdbsjy 8vddu*ec tripled, the time for one complete vibration increases by a facj+al8 cxb/h*c8dvyd d +e 2.sv wb5du8tor 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 penb hm/d gew)3u )cur+0jdulum's frequency if both its length and mass are increaseed/0 j)w3) br uh+cgumd?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Simple pendulum A swingxgrwed+eu;a* xgee0x1( )ebmat 1w,0s back and forth at twice the frequency of simple pendulum B. Which statement is+ ame gwa1;0e e(t*)b x,1g0ewrd uexx 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 acqd19;r pqd /ccceleration of gravity is leq q 1d/;rpdcc9ss than on Earth, the resonant frequency of the pendulum will

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve A in Fig. 11-1 q ; 59vji-kt8y-jmivp represents


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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 repr:6 phcm5g3jjpesents


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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 repres+sx (y2oz)hitfpd-o - j 5j4gments


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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 depen03 yw it3 sb qyogzmh vr441acin22h,h6/ bfi9d 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 th.9 c)ugzl kwid,u)1 j+r7y hlze wave from equilibrium is calledkur,7)zy1).zglwldih + cu j9 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 successive crests on a 1m)xjr3te go7 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 wavel6eypx4.l* dhz o3ts2 passing a point per unit time is called the wave'e.ypl32hszd 46l t ox*s

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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 frequencyw+..hh v40g15 rfmvegtw jj n) 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 sucrew. y809fuj bs)q8x r8spvl 2cessive e0w2sj)l9r bvqy 8usx88r .pfcrests 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 second bm94p ux rma4l:fm : quk5bb;csp 3:e5wave on the same string has wavelength 2l and travels with the same velp lb:594m4f cmbbq:suk m5xpau 3e:;rocity. What is the frequency of the second wave?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a traveling wave on a string of length L, mass M, and teoypob6buub 8m7u 5t yz/n -89ension T. A standing wave is se5byub9tyz7-b 8/ o6meuu o8 pnt up. Which of the following is true?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under tension T. The speed of*iwvsgp p2s92+5dt ea a wave in the string is v. What will be the speed of a wave in the string if the mass of the string is increased to 2m, with no change in length s22 +a 9itp*wdge5pvs?

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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 anzu5whv zef cr0 *.pj)5d 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 isp* fve z.uhj0w)5z 5rc increased to 2L, with no change in mass?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under tension T. The spei :d4i8:v urvned of a wave in the string is v. What will be the speed of a wave in the string if the:dvivr i4 n8:u 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 travels through thax (jx*1mj0r6t3 pqq ne Earth, the relative motion between a 0nj pm(63*qqjtrx1xthe 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 Pen )hkz8;ylut5 vt42n wave travels through the Eat;e28 vk4nnuh ztl)y 5rth, the relative motion between the P wave and the particles is

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity of a waphq g s4x9ppx:b28dn-ve 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 toaz8 (eem4nuzgx y/p. sbv7x7+ the right along a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and 7 .xvse 47+mg8zn xpuea bz(y/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 string, h9,glo y apt*+;mdf8pone i;yaf+ p,mpl8*dg oh 9ts traveling toward 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 the rigup ;u407ycbnthl-q uablv0 n y/: y2+hht 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 the same regionyla2nnb7 pq0ubv h y;ltcu /h0: 4y-+u 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 strtin6ihg4*r k :ing fixed at both ends, occurs when

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If one doubles the tension in a violin string, ssr1 b8g98gkynmkja p 9/zdv2-hm84othe fundamental frequency of that stri b8 zsgah4s/ky8om1r2pvngmj-9 d 8k9ng will 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 cydtsf1il+ io99g r q7 t*2ssx o/:p3t1d)nxjr m when a mass of 0.600f)rxp9gsstdd +1i2n 7l/ qxototi:s j*13ry9 kg is suspended 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 of spring constant 6kf.e4d0gp, y 5jqc *uf0 N/m along a horizontal, frictionless surface. The spring is inf,5ucfkj ep0*y g 4qd.itially 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 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(c cc 4xc4t3kh a horizontal, frictionless surface. The spring is initially strechc4ct 3x (4cktched 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 period of oscillation?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constant 60 N/m along a horizontal, fri8 .qdu)rw0e tgctionless 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 itsqe 0ru)t. d8wg 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 k 7ewnu.q)// n5rn*h-pv8 gwvo7 ap hqgoes through 10 complete oscillations in 5.0 s. Wha7nk vq8ro7. hhepnw-uw pvg a//*)n5 qt 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 j rhl5h7+gorn :-myc.free end of an ideal spring of spring constant 20 N/m with an- n:ghjc5.mlyo rrh7+ amplitude 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 sprijkb: hjs it,9:ng 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 equiliibsh:9:tk j,jbrium 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 45c6n9ekquc gx uriv1 xr*8a13 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 ampli31r* 9ec1u g c8vi5q uxxr6knatude 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(3 h*5bbemqzrk7:c re 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 erbr5c7emz :e(*h3 kqbquilibrium 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 N/m along ar bp7+-ds18no4ky dd bec1 qc3 horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. ncdrk8bs 3p4 d+ -c71q 1yodebAt 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 spring con kieu8yt.75c,:2jb u rbr cqz5stant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is 7iyqc k,bze u5t :.852rubj rcthe 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 spring consf*zht qye m:lw,u/ +ecafa/01tant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical en *ayue,l01wz m /cf/:eq+ha tfergy 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 f hp:z qi2,6r9g9vqgdforth from the free end of an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What is thi9 ,pzv2q9: qr6fhd gge 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 .hgqd.:yn7uc1a5 rr zcm from its equilibrium position and released. A frequency of 4.0 Hz is zaghrd17y .c:r. qu 5nobserved. 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 s )bzdy*m 3k5l (ogym;qpring constant 10 N/m. The object is displaced by(m)qzoy b* 3m glk5;yd
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 ay :q;)p 7+ldpm xq9rsb spring of spring constant 10 N/m. The object is displaqymp+r7qpd; x)9 l :bsced 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 s*f+7 cgv8eqshj gg( 7wlightly from its equilibrium position, c(+ *wgqh 77gf8 egsjvand 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 oscillatel+x :be hghs0srfk( ,e3l+8mxs at a frequency of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is thxexs3g:r s hmf ekl++b ,h(l08e 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 vibrate.- 7 :p)gvhlmlxomre)h h az6.s 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. How7oh: ve)xr -hmlm)6h.plzga . 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.hop:/iiz 72cb In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional di pobiz: h2/i7cstance 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 ok n2(1mj+yv*w myj 1mqn a spring. In equilibrium the mass stretches the spring 2.0 cm downwarq 2( +1vn*y mwmy1jjkmd. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the total energy of the system.

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suvd*b 1/ pky2 nquxg;y7spended on a spring. 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 rest. Write down itsy21 uq*7bx;kpny dv/ g 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 versus time / pwmn ).o4wnxequation: /n)xw np4m.wo
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 moov5;b 8qh*r l,as wg+r-xt z)1kk oh-wtion obeys the following position versus time equationw-wzl8agk*r h 1 qo )oksr,;bvh t+x-5:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 harmonid5o0s) xs-f*tar9vz; qgc7 rf c motion obeys the following position versus time equatiovc f)*7f sa50;- gz txqrsod9rn:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 eca lllk)9e 1 cn+iw(0k ,ou+iwvvtd:( nd of a spring executes simple harmonic motion accordial0,9wdnlcuc )++v lv1eko i(( wit:k ng to 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 20.0 N/m osc8l8dn:qvx j*lmx3 d( n,fj5kfm+kx)aillates on a horizontal,)88+jxkf mxmvq n5l,n fa3d*xk(l dj: frictionless 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 complw8l eh0u4lfq; ete swings in 8.0 s. (a) What are its frequency and period on0 ;ullhq4ef 8w 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 lo7qu;3uoyy i ly(e4wtg* vpc91ng. What is its period on Earth?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum has a period of 2.0 s on Earth. What v7 8-x e9zn+ :gimvld3c7obegis 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 peri 769wu kv7m2ezg rkia3od on the Earth7kvmeug k 29rz36w ia7?

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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 on4s-hpbmp p5kq ,r57m/j f1eds).kdql the Moo 7ppq54m-lp)5 rfshks/1jmkq . b d,edn 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-kgj5b u je/xi/5syj o,p- spherical mass attached to a massless string. Wheu o/jsy5p/b-jij 5ex,n 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 mass has initial angular diszipw2 o( .w;*:p mnwufplacement of 8.0e. It oscillates with a period of 3onif*w2uw p:z.w;m (p.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 ty-wzkmn/.nsh 0tx 9q8l2 r:7 n-aeyddhe wave is 120 Hz. hs-n8 ztldx: 2 n/wy.-edr79kyaqn0m 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 time. The frequency of the v +084xu1dtboubd ut4 wave is 120 Hz. Wh+044uobd8bu dt u 1txvat 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 "snapszrucn i2xax:6 91d8krhot" of a wave at a given time. The frequency of the wave is 120 axkizr 1n6:ux9cdr 28Hz. 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 mouda ,y4t1 hw;s?

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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 frequekf) 2zqyvnch z oq40 s9-/b,brncy 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 freqund,wm j5e b3i.ency of 12 Hz and a wavelength of 3.0eji ,d3 mnbw5. 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 wavp1qoz-+ eib3/k y.dpaelength of 3.0 m and a frequency of i +/zby-p ka3eo1p.qd12 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/ umlmuki;ea2aofk1k7j5:4cq kq *q 2 /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 ilks. s: q3;z-3xnjk6f.(qte l3f qxzw s under a tension of 1350 N. What tl xwkeqkq6.x(s -qlz sn; f3j3zf:3.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 zb(s/w 4ca8 co* 6ykek/ ankxcs68u7ja tension of 180 N. What is the veloscekosc8 z68* j 64ukn/( y/aaw7cbkxcity 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 dooysoa9n5bl)t ;v1qsdor 0e,; wn a 500 m long wire whose total mass is9; o aldq );o rs5ns,0byve1ot
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 ,hrb o4 rv.,ja )5oizx2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a resonant frequency of thisorb x.5,,)o4 h jziavr 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 oi7rz7j6 iy4m73ue f caf the following frequencies can set the string into resoe74767 ryc3ifjuzam i 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 observed to have four equal mg fab5nyl b lh;:(.ouc1)z3esegments in a standing wave driven at a frequency of 480 Hz. Wcm foh eznbg1. blu:ya)(l35;hat driving frequency will set up a standing wave with five equal segments?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string, fixed at both ends, vibrates at a frequency of 12 Hz witdtk5e 87ab6h yh a standing transverse wave pattern containing 3 loops. What frequency is neetykbhe58a d7 6ded 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 una772 1 umskiheder a tension of 20 N. What should its length be a21k 7u7i smheif 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 g/m and r o1 x0la)mt-uxxm/n7o 8d0-x r( slyclength 0.600 m when it is subjected to tension of n0lm()8 at- y1docx rx0lxu rxso7/ m-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 ax.2x+px. lb:h3 f.q rmfab x/the string vibrates at a fr+ arb.f.xx/pxa b.l:3q 2mfhxequency of 85 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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