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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 )v6ua lu 0;pvoof 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, ujfqr q97k,bxz bmg7; x/41juthe number 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 disp3;qlx8un1x /0kiqw qs 77nyp nv t/e9zlacement from the equilibrium point is callesn9k08yzw7nn71qvlxu/qi/q; tp x3ed the

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. When the mass is at its maximum displacemem8 od5bm7/o d8u*szyo ge)7axnt from e7 y us*go)zdax m78o8do/ em5bquilibrium, 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 mass passs2m5yd -e t;kkes through the equilibrium position, its instm k-t;5d2eskyantaneous 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 maxi1gi*ua(k( jp ot+hj6qmum displacement fromq(uh1 6tj(jgk+o ai*p equilibrium, its instantaneous acceleration

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical sprin-cd*4g)(gpib p;odeb g and bobs up and down between points A and B. Where is the mass located when its kid-bpo c;)p*e i(gd4 gbnetic 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 t/e,b d*lyanwve4yc3e 1 7av5do a vertical spring and bobs up and down between points A and B. Where is the mass located when l1 e35e*,a a ndv/vy7wycd4beits 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 bobs up and downr(l a :slisp2; between points A and B. Where is the mass located when its potential energy is a minimum?lr: sapi (ls2;

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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 betwehwz:tc 6h*4 lt:q6- -uw ohasuen points A and B. Where is the ma :huzottah-6h:*l uq64c w- swss 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 amplitnf 9tgzg(5j g f/gls0:ude of a vibrating mass-and-spring system produces what effect on the sysn(f gsg:tgjl / 05zf9gtem'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 system produces mmzh1)r .mg 5twhat effect on the system'tr .5mm1mgz h)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 maqrz 6r a4ja8qrs/p,l8me 5 hy(vu:ta;ss-and-spring system produces what effect on the system's mechanical enery a; qtj azq,s8584remr: aphl 6(/rvugy?

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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 and on the Mosgar9 3:sr 02o+/ltcedw9xt sq8( iuh on. Where is the period the sawegc (ssr9 t 8+trh:oi/203d9xqulgreatest?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the spring constanayo k.5);b4ert cffci0gcpbm r12, 7 dt k of a mass-and-spring system causes what kind of change in the resonan7rbkm5pi.c; et04b1ffdy)o crac 2,gt frequency of the system? (Assume no change in the system's mass m.)

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the mass M owi s:i 6fd4zr-plk+.nf a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in the system's spring consnpr4zdi l f -.w6i+k:stant 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 ma x lo(d7*blmvub.s *g9ss-and-spring system causes what kind of change in the resonant frequency of the system? uvs(g7l9m *d bbl.*ox(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 of 03 sc;f0afpnk wd 0x-clength L. For this system, when undergoing smck3 ff0ac0nwx d- 0p;sall 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, the time required for olt .tzs-az9 dthp.3w ,ne complete vsa-3. l d,9z.w zphtttibration

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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,eoox6- i 9cuxong. The period of A is T. Pendulum A is twice xu-i c 96o,oexas heavy as pendulum B. What is the period of B?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the length of a simple pendulum is trie, ujt.ac:4i ypled, the time for one complete vibration increaa4 c.ui: tje,yses 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 2nr;6mw gmycdv *)s0a2 gq9xa its length and mass are increcswmn9q v6 xr2*gd2;y0 gma)aased?

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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 b:xdc qu1i: fs*ack and forth at twice the frequency of simple pendulum B. Which statement is coxq fs1 *uic::drrect?

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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, whg lg.5zu e0mkbv4lq+g2z5 k(vere the acceleration of gravity is less than on Earth, the resonant frequency of the pendulum wile504l 5mv+g 2lg(u.q zvkbzgkl

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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 representsh;;0 rzm6s2y -pumlx t


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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 represen nheq :wk9+jyz8i )4as1mne g;1i tl;mts


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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 representsb mgp5cit;*y8 .nih 3t


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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a forced vibratiwy688 if8pegk on, the 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 77v yu;9twgq*odto*+my c9 xvwave from equilibrium is called tvg dm+q;uy977ovo tx*t9 c*ywhe 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 succrze7m* a w(wo .)gnf /kkegk47vz))rdessive 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 ti t02kunax9;olp7f qkn9xnnf;y+*5e he wave' 9u + 59kfx72oekniaxn0l;tpnny*;qfs

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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 freque ra4 d/6pnl2g:*svad yncy 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 betk 9,u jm , 8ugwlixrfof4.yxs64 xv(1lween successive 1rfyso8l xf,xx u lkg6,44wj(m9uiv. crests 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 stringlbep*9j /)gir with wavelength l and frequency f. A second wave on the same slp9ij/*rbg e) tring has 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 a string of length L, mass M, and tension T. A staww,1 0bp+b+p 4h3 cdg stsh.oqnding wave is sg+qdbb ps w1,4.+wtpo ch0h 3set 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 a wave in te3.sxv 4u aqpz1ez:l*b3 a/ wthe string is v. What will be the speed of a wave in the stri*tu3ap/: 1svebela4zx . w3qzng 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 andyosco+7y ( jci 54m-lzon qp:) 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: zi4cj5oyl- nsqp)+yo( m7 oc 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 andoh 9f(zrrsc;7 length L is under tension T. The speed of a wave in the string is v. What wi(c9rrzf 7o;hsll be the speed of a wave in 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. dd oby4k4:*tk As an S wave travels through the Earth, the relative motion between :kd*tb yo4k4d 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 w rvpvvco/y:g9 di5 6+tave is a longitudinal wave. As a P wave travels through the Earth, the relative motion between the P wav/ v+ry9i:6pgcd 5tovve 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 wave izjyz a*w:;:c5)z(wwxpw *pc k(l k 4+micd(pos

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A wave pulse travelinu3 y9d:ld0iffn b9u s.g to the right along a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and transmitted pul9:90f 3ldu.dfb sn uiyses?

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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 r. .7fdnald7p amplitudes pass each other on a string, one is traveling toward the right and the other toward 7.df lrdp n7a.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 tow7 w98ix mcp:ilard the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negative direc: ix8li9cm7pw tion. 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 eaw ip9b-sqm+q+g (*p (a/ mmyonds, 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,fqa,9-v4 wx eu the fundamental frequency of that sx94quwev- ,fa tring 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 cm when a mag497 by4omd e n.pz9ceyd 4vq0b z87dfss of 0.600 kg is suspended fromd 4z 94q4nb7cb m7de8dyf0v.oez 9ygp 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 sprc0nt6c,wi,p fing 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 oscillati, wf,pci6tn0cng. 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 spri5vqh 3/vxh8g lnr z)t4ng constant 60 N/m along a horizontal, frictionless surface. The szr)q53h4gl tnvh 8xv/pring 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 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 horizone:q ;a)jc co)btal, 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 oscillq:j);cec) ao bating. 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 hu4 1cr an3(qr)nxv6m oscillations in 5.0 s. What is the perioqmv n3(cnra6 ) 41uxrhd?

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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 an ideal sp( b*qejv2p 6nxring of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of this vibrating mass when it is 0.30 m from its equilibrium pobp2x q6(je n*vsition?

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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 szh/f1y3 k5t6v x rxr-rpring 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 th5hrr/f3 1 x yzrvt6x-ke 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 cm. The energy9biu k*(8ty lf is 8.0 J at this time. The mass is cut in half, and the systemty(kb9 flui8 * 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 constant 20 N/m along a horiz26bz3ul:gk )w cm pd2vjo(uk.ontal, frictionless( c3m:u2u6jpk v2w)b.dkgoz l 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 aloxfs)trx , (aai+-2zly 3pdn d1ng a horizontal, frictionless surface. The object oscillates in simple harmonic mi +y, ntax1(3-d )fzlsxpd2ra otion 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 attachay ;o0d n4 ; i )7ydmajx4/u5oob5yabped to the end of a horizontal spring of spring constant 50 N/m and set int 7na)oyjm obbp04adia54u/dx;;yo y5 o simple harmonic motion with an amplitude 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 horizontal spring of spring constant v/-cq w-rj yn550 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical enencw/r5-j -yvqrgy 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 oxbu k6noh4j 7;f spring constant 20. 47hjxb;kuo n60 N/m 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 10 cm from its equilibrium posfg/ 13/+wa(2in vjfha e hkrk(ition and released. fa/e(h(w23gk /jn kihv+af 1rA frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been displaced only 5.0 cm and then released?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached to a spring of spring constant 10 N/m. Te:2kvt5wcc(ow49pt b vco xa74kl ))ihe object is9)5kac: k4)t(vwxov4i be2cp7 wl oct 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 c2* h;yib/*ldk4 f-ueb oss8y8zllet *onstant 10 N/m. The object is di * t/eod8eu8-bilssf*y4lzb k2l* yh ;splaced 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, dis, bxp1 fv*m9vxplaced slightly from its equilibrium position, and rx bvf*xvp1m9,eleased. 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 oscil(ns a7qoaj mr/36 :bpllates at a frequency of 1.27 Hz when displaced a distance of 2.0 cm sa(:/l rb7m6p3an qjofrom equilibrium and released. What is the maximum velocity attained by the mass?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two masses, A and B, are attached to different springs. Mass A v buy5*xgjq,ge9n c -(pibrates with amplitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5.p5eq, u g(j9*-yxn gcb0 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 sus3rt u8bea.9 zlpended on a spring. In equilibrium the mass stretches the spri ulrz 89.t3ebang 2.0 cm downward. The mass is then pulled an additional distance 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 o1sbrt+qf: tc1n a spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional dr sfcqt1b +t1:istance 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 mass stretches th d c8hzwmiiu(2+ol,p8e spring 2.0 cm downward. The mas( 2i8w hl8zp ciudo+m,s 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 motiono4ffanl+ 4dm0(ip x6t6s e5cr obeys the following position versus time equatcfo6 e45a6txs(in d4 mrp 0lf+ion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 ve;7i5f(qd24 vz kafuiursus time equatiq(iuu2zvi7k5f ; f da4on:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 jb;au(ie03c 2x,rsif motion obeys the following position versus time equate02(ra x,u;fi bsic3 jion:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the maximum speed of the object?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass attached to the free end of a spring executes simple harmonic motion accf34 m r makd6n(2;xxh:ql1yr ane /pu4ording to the equatio r d;413/kpymnmfnrh (ux4a6lxeaq2 :n $y = 0.50 \; \sin (18\pi \times t)$ 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 forsrcpo0a*h05q ce constant of 20.0 N/m oscillates on a horizontal, frictionpoac rs0h *5q0less track. At t= 0, the mass is released from rest at x= 10.0 cm. (That is, the spring is stretched by 10.00 cm.)
(a) Determine the frequency of the oscillations.
(b) Determine the maximum speed of the mass. Where does the maximum speed occur?
(c) Determine the maximum acceleration of the mass. Where does the maximum acceleration occur?
(d) Determine the total energy of the oscillating system.
(e) Express the displacement as a function of time.
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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum makes 12 complete swings in 8.0 s. (a) What are its frequency andx+7 jzrk,ge)t/pr;x 9 k+t y5 sr6aawu period on Eart/)+ +r; js9g6trwyx kzau5xpt,ke7r ah?

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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 lon9lqd pi d5/b2fg. 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 onu lykt+6 *kco9d;evd. 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 x9;yht,m 9 tcjclock is 1.0 m long. What is its period on the Eac9, tyj9 thxm;rth?

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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 Morgzvs6 ax3r3h.3+r gi : zu2eton wherhva 3zg3+sizugtr6xr.r2:e 3 e 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 attach52 rvwbsx*iy n, m.:tied 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 2.0 Hz. What frequency would have resulted if a 0.50-kg mass (sx * y2t,.ibrwnmiv5: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 mas3)ax tiuy*egj 8, 9snxs has initial angular displacement of 8.0e. It oscillates with a period of ,n)jua s8yget x*93x i3.00 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 wa00hokzn.8 6a0ajka xave at a given time. The frequency of the wave is 120 Hz. What is th0aka0ja6. hznkx 8o0ae 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 thvr* :we:3 e5vku) zswpe wave is 120 Hz. What is the wave sekrv*vew3:w5uzp ):length?


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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 givejsbp/ .u3:z vvn time. The frequency of the wave vbju.p:3z v/ sis 120 Hz. 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 qx47e;a rbsg a8plb3ic 6r*+:tre7z ia 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 frequ(/vryh v4 j6gk7 cq:/hvpq (ipency 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 wav :av90j s9q96 d(oqhcho9c han 4gloi0e has a frequency of 12 Hz and a wavelength of 3.0cj46sa:qc9h0v n h9 ohl ig(aoo d99q0 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 frequency o, byywu hj5j3r s5p)jq1*wai8gf1h t .f 12 Hz?1 f),g witjuw.j1jr5h 5by3qs y ph8*a

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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.azrs4b rs4vo yxw(-* 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 dens6r29vks79vzmwp2 lu*kv -bvaity 0.0050 kg/m is under a tension of 1350 N. What is thevv 9akw-b*s29v zu762kvr pml 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 of 180 N. Whimau9rv4.e 7 lxy 42 js::zbxlat is the velocity of propagaj2l4be 7r .uvi 4:s:y axzmx9ltion 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 tr: 9s 1ci)xx)3pgd ozamaveling down a 500 m long wire whose total xsca dp:i )m3g 1z9)oxmass 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 abn9j e 0m5uh:of a transverse wave on a 2.0-m long string fixed at both ends is 200 m/s. a09uj5men h:bWhich one of the following is not a resonant frequency of this string?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a guitar string h;d95bqw d fugw+* +lfmas a fundamental frequency of 500 Hz, which one of the following frequencies can set the string qf m*dlbf++5w u;dg9 winto 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 equal segmbiomr) 1riv,zp8( 0b tents in a standing wave driven at a frequency of 480 Hz. W8vpr,mzto1 b0i)r b(ihat 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, vib 5:,3li(*cvqfyg a4bztm j da:rates at a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the standing wave pat z5 a,t4m clb:v3qja*(dyigf:tern 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 denf3- b1mzxt3we x*y)eh sity 1.5 g/m is under a tension of 20 N. What should its length be if its fundamental resonance frequenme1 fwb y-*xe3 z3xt)hcy 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 2.06g2m 8hwh9 :tik6lwl0uh q.df0 g/m and length 0.600 m when it is subj:hq2h itlwwf hd 6u906.glkm8 ected 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 fixe30jb) xttt it6d at both ends. When the string vibrates at a freq3t6 b)0jt itxtuency 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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