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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 mk u+ 4:mzkg1vz10ngt 5ra mk4of 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 n,*(kt8ra6s an 0bvbo 2 d8uavu+ltx(xumber of cycles per unit 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 nhh -b 1:tpy9)vx-pyg 7ok/dgqk ,-cjthe equilibrium point is calg: ydvp/b-7h tk k,9 hyjcxq1pgon --)led 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 Skgl 4 emph+(4mHM. When the mass is at its maximum displacement from eqm4p e(k4 +mglhuilibrium, 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. p..goxz ;n64duy2l sj When the mass passes through the equilibrium posu;6.4. pjy 2lnzo gdsxition, 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 displa:l;yoyie5t8 zl*g xn8cement from equilibrium, its instantgellt;n 5xy8o*y iz:8 aneous 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 an (uucnrvdxo6iv d, 971 zqq(4od down between points A and B. Where is the mass located when its kinetic envddo(oc69nuvxiq zu ,(1 r4q7ergy 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 bel(du*sx p:f2 gsf/.h xtween points A and B. Where is the mass located when its kinetic energy is a pgxls. 2( *dh uf:fxs/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 5n 3*njlu 6)lr i0yecfand down between points A and B. Where is the3nl6cij 0rn u )fey*5l 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 down betwf2hfokr7.yu7qxu :wq hz198 ween points A and B.fh h7rok2q:uw zq yu .wxf1897 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 of a vibratikastv(0rs t3lm9g 8- 6bd)ngzhb a8- bng mass-and-spring system produces what effect onhnl)g0bdb6a 8 rt3am9z8 tsk(b s-gv- 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 b*o(o9 pez7kmq5u/f p system produces what effeck9(p*fq m eb/uz57 oopt on the system'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 vibrating mass-and-spring sl,d uj:jhcy((ystem produces what effec (l(u:dc,hjy jt on the system's mechanical energy?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass oscillates on the end of a spring, both on Earth 4brvm7ev5g. pand on the Moon. Where iveg.mpv574r bs the 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 / ci0 do:vyqv0mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in i :cd/qy0v0vothe 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 ,gaq9l)tdl 1range in the resonant frequency of theal91 qrdlg)t, 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-aeh,*w f0sjew rxlg (qs y(:q., g+pb.mnd-spring system causes what kind of change in the resonant frequency of the systmg(bq we.lq.0s ej+(*hp:,y,xr g wfs em? (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 t; 7u5o c5hztwoo a weightless string of length L. For this system, when undergoing small osc5o w7 ;u5zhoctillations

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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 reef x+fd3+x.l bcpo 14rquired for one complete vibratiof.c bx 3l+xo4rfpd1e+ n

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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. Pendulum A is twic ti0it-c 2cgksy3mvv tqiqgt628s .1 *e as heavy as pqk621gvs .tit38c qv gctt0i - i2*ymsendulum 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 penda2 ujx1 cq,2mns+1euhulum is tripled, the time for one complete vibration ixecjn1 m h usu2q+a,12ncreases 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 length and mass arrip4 s.0*gve 8z pwah(g 4pl1me increased?gp 1.pia vsglw 4p* zhemr4(08

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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 of simple j6-fli 19vxpb pendulum B. Which statement ilix9v-6pj b1 fs 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 accrz7 y,suld3+ yeleration of gravity is less than on Earth, thzl3srd yu,+7ye 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 r: nr6;irb7 hfbepresents


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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. 11-11z5 tz4g 4blnt0qkgkd3fz.4 m represents


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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 r9bskyo 7; 7fu n:hj-etepresents


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.w2li li: j-d5 dsrm)y 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 pd( 3ha.u.rd7pd ez7r from equilibrium is called tddhrpdea7.r. p(z3 u7he wave's

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The distance between successive crests on a wave is called the wavlcbeh)m dc. g06tm9 2s1ct(oze'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* pn2vcsk r4b ay4 -;mfzzs89r69y bqp time is called the wave' 42 n6q;m8papybk b zs*y-99cz4rfvrs 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 frequency tis5lv;kv*icdi / xu68pmes 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.wfh y-n3 f/ c,sg:pq*l What happens to the distance between successive crests if the wy h-3nls:gc,f*fq/pspeed 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 seco-w mpb1 (lc,0y)fb puhnd wave on the same string has uw() ,1pp-0fcbmyhb l wavelength 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 wave on agm/ g 0yye8:gf string of length L, mass M, and tension T. A standing wave is set myf 0 g8y:g/egup. 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 teaha5bah3 uv a5r0fuxd. fq1(1nsion T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the 51a ar fda. v5(0hqu3bfxu1ha 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 wavh) el88qljc0zy7lcu8 e in the string isul87hl0 qjl)zcye 88c v. What will be 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. The speed obz p*o rp23uk8f a wave in the string is v. What will be the speed of a wave in ppz uo8b32kr *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 transverse wave. As an S wave travels t7wst/cl( tz8hx v-y3through the Ear -7x(tctzhy/8s vw3 tlth, the relative motion between 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 longia8.cd:qwgal e fy (v7:tudinal wave. As a P wave travels through the Earth, the relative motion between the P wave and the particyv l7ac.e w8f: a(gdq:les 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 l5mu;,p ochaubhxp39nf.hph/9l)9lqc80 kl s

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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 mj (+ip-wd1s5 df bp-o)(m3roqj-yju right along a thin cord reaches a discontinuity where the rope becomesb--u(qfjm+mj3)yj-ddr w1os ippo(5 thicker and heavier. What is the orientation of the reflected and transmitted pulses?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two wave pulses with equ)93diwv w:zesd)i0 rual positive amplitudes pass each other on a string, one is traveling toward the right and the other t rwsz9dvdi0w u) :)ie3oward 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 travelin8acf*scexk2 g(, uk 9tg toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the skua e* c9xt,kc2(f g8negative 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, occur1 hv .d7x zpk4e-crpr6 s*1tjrs 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 tensionlw x*s* k.rzq8draxkr .j( ;)e in a violin string, the fundamental frequency of that string will increase by a faw r (*8 l).xerjdzkxqr;*k.asctor 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 thai/d:iq+yjg ny w3n5(jt stretches 2.00 cm when a mass of 0.600 kg is suspendew /i:ng +djj(y5n3iq yd 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 8aw1g*az afh 6jssa +/:hm3ni spring of spring constant 60 N/m along a horizontal, friction izhma 1n:86a/*jw3ssaahf +gless 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 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 a0r945eezgoxd:hz f3 vlong 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 z9rhfeozd 345ve:x g0its 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 4obdfka4ade/qlr : /: 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 obdq/d /4o:ka: fr ael4f 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 ;kh1)1vvjpz w 7mzqo.6 2jnaw10 complete oscillations in 5.0 s. What is the po 1pz w;1w6v nhzjqvjk)ma72.eriod?

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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 en+n q b9 t4k)7lcqg(dc2mk rdb83xri o6d of an ideal spring of spring constant 20 N/m wi8+kg di bk )nqtm2bdl94rrco637xc q( th an 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 spring constant 20 N/m along a horizonz/(ctise ivvk3igw4 9v323 0jyz *zzutal, frictionless surface. The object oscillates in simple h2z0z4jitig 3vuev*s93/ 3zvk zc(w iy armonic 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 amplitude of 4 rbn,n, kh/ri(m /1jjxcm. The energy is 8.0 J at this time. The mass /, (r kjmj,1hnrnbxi/is cut in half, and the system 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 spring cv17e0t ff:qnulhzc6bv um c)+ijn46/onstant 20 N/m along a horizontal, fricti eu)i6f0vj b+fmvc1 t 46qznn/u7hlc:onless 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 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 al9xdu, wysx6v2 ong a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibriuyv6xd s,w 2u9xm 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 spring const)x*lcvjrg jsibg.9m6r 4) 5smant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the tbj )r) c 54js6s.m*vx 9ilggmrotal 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 to0 :(rvn d zx g rkfe/t0l8z;)c5yvb.kp 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 isdrc)g;0er8kz(5y n zpl0 /.vkx:vt fb 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 aqtxst x xw8,) nrod:77qzop04 n ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kinetic energy of this vibr7)ostw0: q8 oxq7 n rx,xtpzd4ating 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 syste+u4yh19e pg mpm is displaced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What pp+y14 gehm 9ufrequency 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 obje -2vep)qs*xoz kg*/z 8ghx3qu ct is dispheo kuq3/pg vxxz2 gs)-*8*zqlaced 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 spzogq:pzzsemlma9kr kv,r 0 ;y4v; -9;ring of spring constant 10 N/m. The object is dz ; ;vs 9leqmro mgvk0 9przaz,k4:-y;isplaced 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 puswt6-5o1xv a spring of spring constant 18 N/m, displaced slightly from its equilibr5 t61-vsowpxu ium position, and released. What is the frequency of its vibration?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring. It oscillates at a frequency of 1.27 Hz when8dmu8o wl0 6 8 yqfj pu/klkv/yk4qt(- displaced a distance of 2.0 cm /k p-u8w68fkvuylo q48 djm l(/qk 0tyfrom 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 o-:mid +/uy,ak-d. n*2 flb; t. fjscp3gzoridifferent 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 pyzd*o a2sotrbmin -3-f :.; kjil/fg,dc.+u 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 streta. 8e8v ldzg3u/5 yyyiches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down 5yu 8v 83zya.y/ied gland 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 equi7:p jopd ;wl-wlibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distanc-o:plp7w wjd; e 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 sp4+sjbxm) q zp 5ny(qva1oyh0+ s/( jxcring. In equilibrium the mass stretches the spring 2.0+ bz)jmxoyxas4/5(c + 1hy(vqnq0 spj cm downward. The mass is then pulled 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 harmonic motion obeys the following posit ddxc 6xz1t0(vgf2*vys3p d5uion versus time equation* ztdg31v5 x2sx0 yudc6 dvp(f:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 positii ff3ckp cghn i,61wz4 my70+won versus time equation3k1z n04 cym,w 7+gcfwhp6iif:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 position versus time 19l dw)d r0eonequationdl nr910deow):
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 execv .h ojpw1-9ncutes simple harmonic motion according to the eq1 hjvo9-w. cpnuation $y = 0.50 \; \sin (18\pi \times t)$ 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 rxgdr + *ms1 yl6-ciw;N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released fd+w r-gsi cl16y;*mxrrom 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. (a) What ar*g ti.r3 +c)hz wcvgp/e its frequency and perio3t*.czg+rv /gihwp) cd 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. Whaty3)pfi )wam c) 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. fz8xj x-1eq z+b *z,zp 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 itsn 3uktl fmg5oq2,kmwge7 :f 68 period on the Earth?qko75 m6ggn2ltfu3 e: mf k8,w

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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 1hhrkd-426 spb:2ybbn.0 m long. What is its period on the Moon where the a-kbsh:n rp2bbdy64 2hcceleration 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 atta z ,fl8y18/udr01 f8a wejiotyched to a massless string. When the mass t z0y8oue/ffda 81 j1ywr8 ,liis 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 u/- igd ln9xhh1,zzypmvq r,p2dvtu 64-r+4a20-g mass has initial angular displacement of 8.0e. It oscillatu,4zpr+4v1 v6thm lz-ia /,qhxdrdpgy-2 n 9u es 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 wave at a given time. The frequency obiovsxc4 w:j 3; 7 wfg.uc)tc;f the wave is 120 Hz. What ;3ux sic 7vgco.j;f b4twwc): 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. The8m3par ( b2m36nazasorgtk (. frequency of the wave is 120 Hz. What is the waveleng (ot8(.ran ap3z6k mbmsg 23rath?


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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 of askk-nsw/ + q j8eut w vx:3keq15ns40the wave is 120 Hz. What is the wave wx qs3e0qw kuankk+/5tjnsvs e81:- 4speed?


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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 a2la25cl5t3oy *oquj c wave which 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 wit: * :z9wdfzw8wii0htr kqs,y(h 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 wavelength ox/lx ;xhkcdf+pm9l4 v)8l- clf 3.0 m?94ldl lx lhk/)mfv+c-x pc8x ;

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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 frequency5 tzezk1h-tt) of 12 Hzz-k1z 5)et tht?

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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 v zix 2 b3sgo0xbjxc,l0s 7s*9jv3gp- 2.5 m wave traveling 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 a tension of 13t6ustftvb222 /8 agvr50 N. What iuvvbast/2tt 2r g8f6 2s 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 unde)nq/r-q j ;xxdr a tension of 180 N. What is the velocity of propagation j/q); -x xqrdnof 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 q crn) bmc-3c:whose total m:q)3b-cm cn crass 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 transverseibog*eq-b j + z5wpc8w34)xa:fkmn4m wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a resonant freqinom4*5mxww-+ce ka:f )4b bjqg8zp 3uency 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 funda05j3l(rph0ug1 bzq hf+m4a 2bmq 8m rhmental frequency of 500 Hz, which one of the following frequencies can set the string im+8bum12bp(qrhm qhl3r0a zj04hf5gnto 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 x5+ pxevx,t9mf6ah(g mcjn 5 ,to have four equal segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standingt6,+nv pahg,95 jm xf5cex (xm 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 ;u:)eq fx)y69q zfy ziat a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the standing wave pattern is to contaizyy )ieqf9f:)zqxu 6;n 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 shou4aralqn s 1y2+ld its length be if its fundamental resonance frequency is 220 H2an l1 r+4sqyaz?

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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 a396usm otfe7di85um and length 0.600 m when it is subjected m 8d om3t9au i76e5sfuto 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 endm h 7d.88guw muqw mbf+j4(e3nr ntx+6s. When the string vibrates at a frequency ofn.+ tunmu6jhm4w dqbfwx(8g3+8me r7 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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