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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 wt l21yepom5* ,5mq jhr1umy2of 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 number of cycles pert00qsxj yf svhm6w umg.;0d , *z27gdu 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 displacemer cxu+c-hbp0ivp r.w9+qkl : 1nt from the equilibrium point is called+ c1vppr -:khrb+.wc09 liuxq 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 itm *-1cs5ttn 5chdbz4ns maximum displacement from equisd5cncm*h n1 5zbt t-4librium, 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. qa:c9 4+y l ktt oax.*zj/zk2bWhen the mass passes through the equilibrium position, its instantaneo4k/tb2*k coly q.9xt zj+az :aus 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 diz9,tmtnzg9*yx /6bnn s ec95l splacement from equilibrium, its instantaneous accelera6m*59tne,9bg zn 9xty /cls zntion

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and down hu:k 9/vnvgd2m 5qtqw;,z 3wo between points A and B. Where is the mass located when its 52 vkqwgq9dzu t,o n:mvw3/h; 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 1 2r eube:g 0ugx:d8exand down between points A and B. Where is the mass located when its kinetic energy ise1 u0uxxdebr8:ge :g2 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 uzhov:+ 4p 9 ngsmb5n:8c grsit)et,2zp and down between points A and B. Where is the mass lo5)4 8em gnvi,zozp: st+ :s2gthc9rbncated 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 between pointsr6 u,rz(c x9r ggf+feo -ba6x ;x8hgj9 A and B. Whe-a9bj cgfru(8rz fo69 x;h6+ xggr,xere 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 vibrating mass-and-spring system pro35dg 0 c/uixj*-q atuoduces what effect on tcg- 0jou 3/iaq5tudx*he 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 system produces what,,jpufk8rsu 5 effect on the fpuk,r,u 8j s5system'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 springf26: 4hko+ev vhe3upzmk ne t7;2a v/os,r:eo constant of a vibrating mass-and-spring system produces what effect on the system's mechanical energ okse,kv7at 3u e/ep:2:ovr mfv+ h62eoz4n;hy?

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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 Eart:fcktn / h6c-wzkg;7 bh and on the Moon. Where is the perio7kwc:gfn -/ct 6;bz khd 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 causes w.w ;5km3xhn:n,k kd ls5*o o:ce/ni lthat kind of change in the resonant frequency of the system? (Assume no change in the system's mak:wn,h:ko cis m .kn5x5d eotln3/l* ;ss 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 i /:0:0be ui6iq zofzja mass-and-spring system causes what kind of change in the resonant frequency of thefji/ue6 zioi 0q zb:0: 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-and-spring sysqfsx2-u4q eer 9,p6vmtem causes what kind of change in the resonant frequency of the42ux m,qe 6er-pfs9vq 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 i v4dbp8v+fwy( r l6o/M attached to a weightless string of length L. For thipb6dw+ yorv (/4vli 8fs system, when undergoing small 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, (tl g 63s:(o1 8ns fo9mvwaamqthe time required for one complete vibrat w q 1sm63(avfgsaon:l9(8tm oion

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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 Byfe2soz e5.o 3gxwmf51 c 7pi5 are 3.0 m long. The period of A is T. Pendulum A is twice as heavy as pendulum B. Whaizxo.21 mec opsy5gwe5ff 357t 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 simpleukb5lvu- b 3/a :umy)u pendulum is tripled, the time for one complete vibration increases by a fa5/- uav 3kul: )mububyctor 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 itsyaxx-jc y 2zax8gt6+yr; ;max:dy75m length and mass are inctacg:286axxdy+ ;mx;5yrmya7zj-y x reased?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Simple pendulum A swingse wgs-:vywm21 back and forth at twice the frequency of simple pendulum B. Which statement is corrvy s1megw-2w:ect?

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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 acceleration of gt:uzhjl.k4u 8 ravity is less than on Earth, the resonk:tuh.8 ulj4 zant 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 repres/f 0/*lf zmhmfe*j2knents


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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(lkx,h0mx9,2 fqrdsyesents


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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 represe ff -fx:wz19+ly6me qknts


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 w; v, caf73 +e;mtwgkyof 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 displab;ew(9cax x ),x( hfubcement of points of the wave from equilibrium is caea)9(x(,;xcw xfbuhb lled the wave's

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The distance between successg :kslm3;sxyr ;2hzj/ive 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 a1 n4/wge5q ckq:9qt ni point per unit time is called the wave'ec n51gqqnqit4/k:w 9s

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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 45,u9l yj7apuqog- qd 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 h1v dh , ki:lx)gq q;:63kqd-ttoyr p5distance between successive crests if the speed remairgq1dp3kt5ky:6olq:,txh) i d hq; -vns 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. : c4n-mhw10 -lk0zc (l /:ermhm5jkfvg wof2tA second wave on the same strikwkho:rm2m h 4-m( l5tjw0-zel1nc 0:fcg fv/ng 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 i)macr 195rk pnnz +e1length L, mass M, and tension T. A standing wave is set up.n+pn5rizm9 k1r 1e)ac 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 (0gb 9utuyku8T. The speed of a wave in the string is v. What will be the speed of a wave in the string ikt9 uyug( b0u8f the mass of the string is increased to 2m, with no change in length?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under tension T. Tid( hl1g3-dr jhe speed 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 change ihdd-rlij( 31g n 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 undenvv+7n6a3 tjxjx+ u u9r 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 tension xu9 unj7vx aj3+v+6 ntis 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 9wnf b,hnkq(h3w03v ez9m 7+cya0 wwj transverse wave. As an S wave travels through the Earth, the relative motion between the S wave and thek3 nqh 9fh myw,wv7z0ja(cww3+en0b9 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 P wave travels through;8i.xpl0 qsn l the spi08;l.xq nlEarth, 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 waveluifyo+p; 3w: is

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A wave pulse traveling to the right along a thin cord reaches a discontinuity whtv:l q+, :ydob)yhm x2ere the rope becomes thicker and heavier. What is the orientation of the reflected and transmitted pulses ydo2,yht lb :+q:x)vm?

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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 posiq x psx6eeph o5a+r(2g75n/xttive amplitudes pass each other on a string, one is traveling toward the right and the other towarnrp/57t 6xp 2hxe 5x+asogq(ed 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 o z/k mh./)oeveach other on a string. The one traveling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negativeo/o/. ezvm)kh 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,2) t/k(lifzaj()uop ,bq8hj u 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 frequency :y-tev7ov f6aof that string wy:vft- e76o avill 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 stl3eyrx0m/ 9he retches 2.00 cm when a mass of 0.600 kg is 30ey/xr lm9hesuspended 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 s;* h83h.py zmldst izdkk;89qpring 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 amplit8pk;d zdz h8 q*my sik.9lh;3tude?

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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 nth)t9xf2wiv i0w5- ga 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 period of oscillatioitg)w2 -n509 iwvxtfh n?

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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 owg9/;a9wau y5zmf pst61s0tsvw (k9qf 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 wsz96q ;19g9 w5smsy(w w0 fpavtua/tkhen 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 oscillac:1l vuo ynrw3x9;rtypp f ,9-tions in 5.0 s. What is the periy3;xolr f9y9prwnu- 1p :,vctod?

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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 spring of spring-8ry9wr6 .5ms kk9jrv es ,zdc 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 c6mkk-95j d8ev9s,y.rsz rwr 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 consvba3qt6*so 2x 9qy x0stant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and osa2*sx6vxbt q90q y3has 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 cm. The energy is 8 .qobq-r +ks-i.0 J at this time. Theb osqq-kri. +- mass 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 constant 20 N/m along a horiut-, g qkfx24ccf nfk+ehnf1.05po-fzontal, frictionless surface. The object oscillates i.kgpknf,- nh24ofe1c +tf fq-0uc5 fxn 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 wmaqgi.2zc )vkour(mc81h59 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 posc8umg1 o(qa v)h2r5w k. cmzi9ition. 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 n udb5s30z z2iconstant 50 N/m and set into simple harmonic motion with an amplitude of 0.0zdz2snbu53i 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 z4+v1n5n5c(rjbw*9( )tlfnzvpjmu v end of a horizontal spring of spring constant 50 N/m and set into s(cf bj95*4zuzp( 1ljtnnrn+ )5v wvmvimple 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-whmo i:+,awt end of an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kinetic energy of thatwiw,-mh +o: is 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 s9*xwbkadw/. pystem is displaced 10 cm from its equilibrium position and releasebad *w. 9pkw/xd. 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 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 spru ajb.e h)rk*;ing constant 10 N/m. The object is displa .)k*bajrh;euced 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 attachex5iakc 3nqe,2v/ nsi0d to a spring of spring constant 10 N/m. The object is daqcn3/2 0eiki5xsv n, 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 a springaj/i , f6er a(euz84bj of spring constant 18 N/m, displaced slightly from its equilibrium position, and released. Whaaj4z (ba86eu ij/rfe ,t 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 t0bux,n1sth8,fitv + frequency of 1.27 Hz when displaced a distance of 2.0 c x1 f+ st8,httbuv,0inm from 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 vhqvyyfh.15 . 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 of A compare tfqvh yv.y.1h5o 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 equilibrib8 ts2frc/2 /h0x 7 hykx5juqzum 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. Calculate the periohc08uhb fy5 kj7z/s22x /xtqrd 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 njocopga4d3;fi*3 4k 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 res3i4;fa3d n4koj pc*go t. 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 z6icr;0e *se -4ntw zistretches the spring 2.0 cm downward. The mass is then pulled an additional distancew eii6rc-0nzs;ez t*4 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 p)adhn:sut *pv4 1pj)kosition versus time equatjvp)1*4s) pnk :d uhation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 versus time nrl2mrs6cf ,.equation mr, cn.6lsr2f:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 posit d3i9k,d)28vguwfg (usr q,rlion versus time equation:vuw r(g ug, drs2iq,39fk)dl 8
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 ov9ul1mn zw, zlwj0 +t3f a spring executes simple harmonic motion according to the equawn llmjzt3,91w +u0 zvtion $y = 0.50 \; \sin (18\pi \times t)$ 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 oscihc1l qd b,k(/ pn7fpk,llates on a horizontal, 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(q/1k,lkpnd hf bp ,c7.)
(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) Whatv bh/7qy 5bc5q are its frequency and perio 57h5vcqb/bqy d 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 its p/ku1lo4i4 mjteriod 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 2.0r chd* 8a4hr2u s on Earth. What is its length?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock is 1.0 m luq k *fbbm1;be.ha5w7(pn96-uzjzs- cq o5io ong. What is its period on the Eab5 uon *9ks p6ohj wfiazz(q 1 bc7b5.-;-qmeurth?

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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 longi 6p48/xu o9+g dsdcuy. What is its period on the Moon where the acceleratiouiuo/4 g +dd8x69scpyn due to gravity is only $1.7 \; m/s^2$?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consists of a 0.25-kg spherical mass attached to a masslessjy6 ow) +(gvtn 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 (same diaotg() vn+j 6wymeter 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 displacemehme 8)1u mrhekx 39x7bnt of 8.0 ub r3e189heh7) mkxmxe. 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 tk::*6(hb a rw1 j,q8z5qfwj2hxhq vi a wave at a given time. The frequency of the wave is 120 Hz. Wh1 t:6ih:hhq5vjq* wr(bak8j z2,xqfwat 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 fre72hx9 ejcrjb5 9l) eyuquency of the wave is 120 Hz. 9jchb7ey2)59juxl e rWhat 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 "snapshot" of a /etf9u99yk 5bk etz9 awave at a given time. The frequency of the wave/ytbae9ek5 9 k9z9tu f is 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 ow +zfxfrr22 6kf 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 fb5 -+ytr6,+xmi 7j-gqijol v vzy.82 bzjpdj8requency 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 w6lzpkq2ub 1 cb 9te7m7ave has a frequency of 12 Hz and a wavelength of 3.0b2 t7m9lqzp 1ebuck 67 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 w e:ae 8sllkc,93plu4dave that has a wavelength of 3.0 m and a frequency of 12 Hz?su clee9 4 ll,8k:apd3

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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 o*v 1joyj64yk 9m a7behf a 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 te3 or,cc/ wz*hfnsion of 1350 N. 3o/w, h*rfc zcWhat 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 tensi uzng5p7vtr7 3ex:cx .on of 180 N. What is the velocity of propagation of transverse waves along the strpctue5nr7zxx7 v3 .g :ing?

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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 trbt wj2x1w-5s6sb nuo,aveling down a 500 m long wire whose total mass i2o,ss w6bbxj- tnw5u1s
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 d3vb.+rd ;vx4wyse*s of a transverse wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the foll 3sby4ews; xdv .vd+*rowing 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 has a fundamental frequency of 500 Hz, which one */c2jk2lad;8e a qzdy6, fotc of the following frequencies can set the stricc,;otlkfde*/qjy8z 2 ad 2a 6ng into resonant vibration?

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95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A stretched string is observed to haoch1-n wrs r4/ve four equal segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wave co4w -n hsr/r1with 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 with a 8(m0y+gv9frrm:5cl(zvr ur p standing transverse wavym8rmlvg : + fzcvrrp(9(u0r5e pattern containing 3 loops. What frequency is needed 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 dense3f2nw18 m bvcity 1.5 g/m is under a tension of 20 N. What should its length be if its fundamental resonance frequencwn bf3em1c v28y 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 denseali-yy3 wi irv:/ j9sctn1jz .0d81fity 2.00 g/m and length 0.600 m when it is subjected to tension oflij91se-i d :j13yf cwvita /8nzy0r. 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 the string vibrate b( c0wuohri1eq0+.m p)drda 6s at a frequency of 85 Hz, a standing wave with five looppedcaq06h 1)0d(o+rri uw m.bs 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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