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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 calle rz6 jk*:zoi5l qgz7q9 ./ykwjd 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 cyclej6yzqq/u5q oh)njb x,- lzp7. s 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 dis4 bvij/e 7)(*uk14bistpv dimplacement from the equilibrium point is callbm/ b)47t(uii kjeid*p1v vs4ed 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. Whexxd/, 5(lk;sf qv f+cin the mass is at its maximum displacement from equilibrium, dxq,/ (s fki5x f+;vlcits 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 undergih 282ng,z4:egv mw rkoes SHM. When the mass passes through the equilibrium position, its inst i4n gm2zk2v ,rh:weg8antaneous 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 *rmyuvdzmetmn3jae208xgkb:) ),)u mass is at maximum displacement from equilibrium, its instant)k*3u8zm me :vrm j d)y e)t0unx2bg,aaneous 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 sprb-3 f js)-qfsiing and bobs up and down between points A and B. Where is the mass located when is-jb fsi)-3qf ts kinetic energy is a minimum?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and down *kthv4a:v yn 4between points A and B. Where is the mass located when its kinetic ener:*hakvn4t y4 vgy 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 sprid e:3hs zg)0kyng and bobs up and down between points A and B. Where is the mass located why ) e0sz:h3kgden 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 bo i0 cd1kt9/yrn f9bg+jbs up and down between points A and B. Where is cj9 /f91ybt nkg+r0 idthe 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 fre 0a)v5qg6jl4 zc.u:p jr;da vibrating mass-and-spring system produces what effect on the system's mechaeldqj ;rz)6a guc0:p .jrfv5 4nical 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 mas +y-.du7vntw pc9s lm6s-and-spring system produces what effect on the system's mechp s y9ml+6-wun cvt7d.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 sysdg;n hij krovw90q/v9sb4v.1tem produces what effect on the system's mec jnvd9wbg0 kh4s r./1qvv9 ;iohanical 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 ofm5.rtkqi tzt9l2 8 g/q a spring, both on Earth and on the Moon. Where is the period the great qt.9ikrzt5 /ql2 tg8mest?

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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-springnroglhd.mx1 v 4 *nn47nrwwi (d56wl / system causes what kind of change in the resonant frequency of the system? (Assumenwg*w .(7x4l n6/od4r1 l wnnvim5hrd 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 chy7(f4+ y)k7 4gq ivh7ej;,o4+sjvrsiku rn lhange in the resonant frequency of the system? (Assume no change)fu4vkyg erls ,(h7+4o k77 hqvin ;jji4 ysr+ 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 yxn.otichg;51m fl,4 kind of change in the resonant frequency of the system? (Assxc; fy 5tnm.lg,oih14 ume 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 of lenbrkdgn (yt -/,bkmgm6 c90i:tgth L. For this system, when undergoing smm/6-c, nkg:ttrgiky90 m(dbb all oscillations

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the mass of a simple pendulum is tripled, tpd0z vlh(pzb s(1v7d +zwuu1 *he time required for one complete vibrationlsv+1*(vp zhz0zpw7d ud b(1u

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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. qgh lxkk*.wy.d;.z0 t Pendulum A is twice as heavy as pendulum B. What is the period ofd0;xl* .hykkw. tq.zg 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, th36y8agly;rm vn* ud;ne time for one complete vibration increases by a factovguy6nnd; y83* mr;lar 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 pendulu,v;esv1h p, 0bvkwb( wm's frequency if both its length and mass are increaseh(;0 ,b swe kbwvv,pv1d?

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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 thjxpe7w ft8:4 /htxcw6e frequency of simple pendulum B. Whicwt6xw8jc4ptf 7xh /e:h statement 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 thou0jzdo3sc2 6rx3a f9:- gflie acceleration of gravity is less than on Earth, the resonant frequency of the pendulx- ou360 c dgjzf:93a2lfio rsum 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 rg+zzl9 m ivezxb 4* 0jnkk019xepresents


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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 represent s,otw*j)fn1lp d6us :s


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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 represents2u,orcp q(5bl


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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 dhsk+ joq85k1depend 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 mv7ok/31 k9lmo9 y phbwave from equilibrium is called the wa ko137 oykm/b9p 9mvlhve'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 succee 5oil *mo+6iphat t8:ssive crests on a wave is called the wave's

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of crests of a wave passing a point per unit time is called 7q 0 *xzhlqn7m67deqkthe wave'seq7qzk77m*qx 06dh l n

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a wave, the frequency times the wavelengt8dvkq+ wo) ma: r5xztr; r4f9zh 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) 2aetqffl,)r . What happens to the distance between successive crests if the speed reml2) fqaer t,f)ains 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 wiohqf6gv/. e 3oth wavelength l and frequency f. A second wave on the same string has wavelength 2l and travels with the sam e/ 3vqho.gf6oe 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 L, mass M, and tension T.m:isqa3 p3-.b mogu3j.r*cvt m5l4a h A standing wave is setvu .ao43g 5htj3-3crs.a pi ml*mbq:m 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 le xhr 1tr984pr ,vw7upingth 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 mass of the t vx94rprwr ,uih 87p1string 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 spevzrz5.+myq sm k12 0 mwo.f1yeed of a wave in the string is v. What will be the speed of a wave in the string if the length is increased to 2L, with no csm z f 1m 1+omy.5vr2wqzk0.yehange 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 v ze9( q fsc5wd5.mjlo -g:,ypunder tension T. The speed of a wave in the string is v. What will be the speed of a wave in thldos5v 5p-gwmyj qc f(:.z, e9e 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 tr3 llxc39ikhs2ansverse wave. As an S wave travels through the Earth, the relative motion between the S wave and the pal9ls 2i3c k3hxrticles 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 aw3+:t-utuv9s+ g opu q longitudinal wave. As a P wave travels through the Earth, the relative motion between o3ps9tu -v+t+u ug: wqthe 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 wa/i.x46u(ga 0ixbnd ue 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 ws*v9 r* h2it n,b:ogwto the right along a thin cord reaches a discontinuity where the rope rno,vhb**t9i :ws g2w becomes 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 equal positive amplitudes pass each other on a string, onba,h28gi;u c e/j3 -cm ju2mzxe is traveling e-cz/u ug2m2,xa8; jcmjhb3itoward 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 towarl8pr1 rzcu;) pd the right has a positive amplitude, while the one traveling toward the left has an equal apu;z) c81prlr mplitude in the negative direction. At the point that they occupy the same region of space at the same time

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Resonance in a system, such as a ian2l -vkvt. nbejx)j101b -rstring 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, the fundamental frequfln2ptjx6,x., q5l ug8g rmr.ency of that string wig2 5nglxuml6, rt8 pj.rx, fq.ll 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 stretm bu+xkpx-0w/a 6 cb*tches 2.00 cm when a mass of 0.600 kg is xua + * wmkctxbbp/60-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 60 N/m kjkf+/a3 :dy jalong 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 0.50j+j:k3y/k fad 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 /4qc p1shp 9ffa spring of spring constant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the pehfsq f 4cp9p1/riod 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 hor*r87:v b2ea2nq++ggzks y2y s hl1zxlpg4q* x izontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes22x zyl1q:* x*e4kq8gn+v yl7hspz g+ arbgs2 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 complete oscillation ct iy)3p)p7vmxkpcu9acg:10s in 5.0 s. What is mtuxk0gp )v7y)p cc 93:a1picthe 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 th6zu(4myrzz mi 5 v9v,e ;- 0i;uryzsmde free end of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What 4v;dymmy(sruu,5 v 9i6i z-r 0;mzezzis 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 attnd ms7 aofp,20ached to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equ7on fam 2,0sdpilibrium 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 8m)f13 jo epk-.gdlbfis 8.0 J at this time. The mass is cut in half, and the system is again set in motion with amplitude 4.0 cm. What is tho -)mef .pd 1k8fjb3gle 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 e* rx h14u4p3n3azyq4qef:d iof spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium posna qdeyx* 4p41q4zu r33ih: feition. 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 attaczx7* 5kr30p,apv x mvbhed to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. At what location are the kinetic energy and the potential energm rb0xx ,k75vazppv*3y 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 spripm9mi;ye+llp fn rl:l0 (ge+8ng constant 50 N/m and set into simple harmonic motion with an amplitudeemm+l py lnig0p ;:9l8rl+( fe of 0.10 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 attached to the end of a horizont 0clx8x.lmd u-.bny a3al spring of spring constant 50 N/m anx.a8ll db.x-cm3yun0 d set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical energy of this system?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth from the free end of an ideal sprinnxuc,7df10-z( lm rngg of spring constant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kineti0g,1xrz7lc (dnufn-m c 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 displayp, t7ddmda m1q7q 0s)ced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been displaced only 5.0 cm and then rele0dddq 1) qpym, 7am7stased?

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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 d npk l( mn.2y96;)vynm*r2evie+xwhobject ik(6vndmv2+2 9hy* eex. ri wp;nln) yms 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 10) (, rh+qjzjgbk8 j)xs N/m. The object is displacs)q(g8j xrb +k)jzh ,jed 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 fro7lh8f42 id,l9g2mdxr momr z7m a spring of spring constant 18 N/m, displaced slightly from its equilibrium position, and released. 78m9d4llrd,2r z m7g hom x2fiWhat 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 when di 7h;(wn0x/rtopzbk (/qe w av-splaced a distance of 2.0 cm from equilibrium ;e tzo/p-w7qrbhvnx0/ w(ka(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 vib h3fc 0 iavkx5ph g,ptf49w93irates with amplitude of 8.0 cm at a 9f pk0t945a,gici 3h xfpwv3hfrequency of 10 Hz and mass B vibrates with amplitude of 5.0 cm at a frequency of 16 Hz. How does the maximum speed of A compare to the maximum speed of 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 a2ii9,tg(c+xhf2 v vuh 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 r,fihtxv +iv h2c92(u geleased from rest. Calculate the period of oscillation.

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibrium yntu .wb3g +lbq7l8q +the mass stretches the spring 2.0 cm downward. The mass ilyqb+nu7.qtg b3w l 8+s then pulled an additional distance of 1.0 cm down and released from rest. Calculate the total energy of the system.

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibrium the tln j;z n-ug-e (m 1fx(y0p9nlmass stretches the spring 2.0 cm downward. The mass is thez e (y nlm0nfut1g;-l(nx-j9pn 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 position vercz 9;dqo4srjt2gh4 0xzc1o7 zsus time equation:gsz4x1 2;tzc9dq47o cojrzh0
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 positio7,i uat sca7s*n versus time equatita s c7a7uis*,on:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the period of vibration?

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple hqtpb1-: )ew 8a9jfu bfarmonic motion obeys the following position versus time equawb a 1qb f-8tue)f:9jption:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 harmo g3 r(o*z;lesonic motion according tog3e olr;s *(zo 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 const c8/9.jz*jgsjciqz; zwu 9l,lant of 20.0 N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released 99j szi,qj;ju gc*z /wl cl8z.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. (a) What are its frequency au zf)oglho zrp b842:,nd peri:b,u zlofz )ghp8r2 4ood 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 k ruevbu1v v(,cu ;4ay0h-dh1wg 7wj /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 i3arz2dizod ih2 7d 3x1s 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 its6daq n:zu(kxaz:2 6 ce period on the Eara6dzakz: n(eq6:cx2u th?

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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. jh4c4/dc9klc What is its period on the Moon where the acceleration due to gravity d/h449jcck l cis 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 hs8 +zu,v-yqkmass attached to a massless string. When the mass is displaced slightly from its equilibrium position and released, the pendulum swings back and forth with a frequency of 2k+ zy-8hq vsu,.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 ol 3ph6y;7xz* *g4uhvg 5wmxg cf a 20-g mass has initial angular displacement of 8.*y3mughz4 xlp *cwgx6hvg 5;7 0e. It oscillates 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 frequ 3cn4cj 6oy3nu(-xyj oency of the wave is 120 Hz. What is the amplxunyn (c4j -jo3 cyo36itude?


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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 frequenco/pb kgx rm/;+ 9azre/y of the wave is 120 Hz. What is the wavelengthme b/ //p9agork;r z+x?


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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 nvf;eehgvi::ha qh.2,; mz :ja wave at a given time. The frequency of the wave is 120 Hz. What is the wa.,jhmz: h iaehfq:v2; v;eng :ve 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 o m7 99ewuv9jpgf a 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 with a frequency of 1500--e ylxvsp2g2 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 freque z xxdi9df3c4-4ox jq45r wtw*ncy of 12 Hz and a wavelength of 3.5fw xq-c4 34dz*xxrwd4ijto 90 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 fre8v+5woa5 a kjq2s:v+k :zf gwcquency of 12 Hz?: +2o vq5z5c8ag:ksw avkw j+f

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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/rvm:ti5;ct 2fb xt6t2s?

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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 densi 1k.ls0 (ww)vd;fyncbq21kt yty 0.0050 kg/m is under a tension of 1350 N. Whknky(c10) ;d2 qlwf by1sv.tw at 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 a tension:z aj4p5nz +rp of 180 N. What is the velocity of propagation of transverse waves along the st:p +nz a4z5jrpring?

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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 wi c 8hn8kes40mwre whose total mhe4k0sw c8nm 8ass 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 propagqrfdak9et nq/zv r3ikb:e*v . , c5:/pation 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 not a resonant frequenv59z ki3pdr/e,.: * :qkqfb rna/etvccy of this string?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a guitar string has a fundamental frequency of 5 ;d 9t;8voz; lypnb-e2gl 7sjl00 Hz, which one of the following frequencies can set the string intod;bl2gtn ;p9oesy z87ll-v;j 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 eq6jen gb9vddv23aw1 xnzkd(w)n7 ;hr0ual segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wave with five kv; abn rz 1edw(v0 )ndw 96xhdnjg372equal 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 botp z2 rk*2vph/gh ends, vibrates at a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the standing wave pattern / pv2*p2gkzrhis 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 densiaf t6wcagw) d:vpcd9 0q95 /ucty 1.5 g/m is under a tension of 20 N. What should its length be if its fundamental resonad90wac5 td) vac gu9:w qcf6/pnce 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 harm5 a w nuux.e23n;qaoq57epx 4 2azdeu/onics of a string of linear mass density 2.00 g/m and length 0.600 m when it is subjecow7qqd532ae 4ae u2/ xn;eu5.z pxaun ted 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. When)t4tm+miqw -tcb / jw1gct*g; the string vibrates at a frequency of 85 Hz, a standing wave with five l;bj /)+gm 1 cwtcgqt -*iwttm4oops 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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