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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 casrbhccdi(oj0oh2vcd j k3 p1 3+(w:3illed the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a periodic process, the number of cycles per u1v*w7pgnnvt n.i v3s3w(1ivs7 :jz bv nit 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 the jn,; crzvr 54eequilibrium point is called cvnrej4,zr; 5the

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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 d/g; a ;p1thokiisplacement from e; i/ghtpa;o1kquilibrium, 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. oh;* vmws nw00When the mass passes through the equilibrium positis onwvhmw0;0*on, 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 displacement gt7l y4 +v:igj slmc,ws6s,j 3from equilibrium, its instantaneous accet4,3 lgsjvl+:, 7 ssiyc gwj6mleration

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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 between pouz: p4 yi.1wmpints A and B. Where is the mass locateuwypm4 1z.p:id when its kinetic energy is a minimum?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and dowoanv us:9.y i8/qm 0rtn between points A and B. Where is the tsniq/.80am9r:yvo u mass located when its kinetic energy is a maximum?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobxmsxi( ccw8v4*hkw 7- ),a ihls up and down between points A and B. Where is the mass located when its pw -ci(k)vc*l,4xhm7 w8ha sxiotential 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 verticvysnq n- 9 i51kduq7l6al spring and bobs up and down between points A and B. Where q 7su65q1kn9nv-yidlis 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 p5yvd3c:u j)jnroduces what effect on thc5uj3v:jd)yn e 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 ncfb -uy(mdo:5mz c 40vibrating mass-and-spring system produces what effect on the5cmz 0y-cdbom(n4 :uf 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:jmsatxz nn7x 6 3*9vr(cn p8i-spring system produces what effect on the system's mecha7xc itmn*vnp9nj3 6s (8axz :rnical 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 :cg+t*oco4m fnck 03tcm +;/stx x8nzEarth and on the Moon. Where is the period the gr+ftg 0s/otx 34z8c;xncktcm :c +*on meatest?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the spring csg3 lh -d4rc3;:kifhh onstant k of a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in the syste;l3sckd h3r-g hi:hf4m'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 cau 4z i4zd9jd:ugses what kind of change in the resonant frequency ofd d 4:4u9igjzz the 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 system causes what kind of chacf x:f-xjg8 9jnge in the resonant frequency of the system? (Assume no 8xc9 g-fj:fjx 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 xsdh3vzv+ o t *+; ;;ja5c4jg7xn5gzflncm a,a mass M attached to a weightless string of length L. nm7v,cn+ zg;hvxjozxcjs5 *3; +;4a ftagl5 d For this 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 sij89mtnz5 h8oq mple pendulum is tripled, the time required for one complete vt8z njhqo598m ibration

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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 7, wrul rz3af;T. Pendulum A is twice as heavy as pendulum B. What is the periodz 3lfaw ur;,7r 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 tripled, the time for one complet amvvov;0/ 9 efr9ml5je vibrativ vra9fvmo/5e;mj0 l9 on increases 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 bot( acbt1jw6qyx/h7q 8 dh its length and mass are increasbq whyxq61/78( tcdaj ed?

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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 frequencqn+u eq78uh2yy of simple pendulum B. Which statement is correct+h8y e2quq u7n?

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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 gravity iq4pa h)4n(xm7:kzoj gs less tjzh gx7(m4o4n:p)aqk han on Earth, the resonant frequency of the pendulum will

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve A in Fig. 11-1 re rhw-4du n((k g7ut)zepresents


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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 reprehr4 ygjx9 6.vimcc/ x0sents


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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 repr/vro2 gmow4 ibx9.gi2rv,kl 8 esents


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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 zzh8u-q6tf 7k u7odapj6o0 l-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 displacem tl)o2dw9zy3e;fpku. -pr) wvent of points of the wave from equilibrium is called the w 9)e py2-.zludo;fwvp3r)t wkave'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 wavez. hd4 o u*6c3bp.ojii ,ce(xnkgfl, . 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 s2e- )sr6e m a:p,yyanper unit time is called the wave'62- n)ease: ypma r,sys

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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 wavelength is the wave' 4 c y:fzk ,8indlztqs-ell-2,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.d :6x /z3r2vjpfw;53bfc zivq What happens to the distance between successive crests if the ;f5v z3v2j 63d bzpqr:ixf wc/speed remains constant?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A wave moves on a string with wavelength l and frequencyil tw 8auz.b,)-5fm m tq29qcv f. A second wave on the same string has wavelength 2l and travels wit)qb,lqv.8w f ta u2zi-9 mmtc5h 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 oje fn6q*x :z374vahb +7pozustring of length L, mass M, and tension T. A standing wave is set up. Whi3q o+vfz6jop hz77e4:bn u*xach 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 i2qfiw13k q m*- h(wne/hrz:srn the string is v. What will be the speed of a wave in the string if/wi n*qhwk1 mz (qehrf: 2s3r- 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. The speed of a wave in thni x;iz,f /qc +wff8.fe string is v. What will be the speed of a wave in the stnz . +/i;f8,i cxfwqffring 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 speezys2 nem7ko82 q51c dyd of a wave in the string is v. Wqes2c8mn 1dz527y ko yhat will 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 (;jjdgslelw ,23j) octransverse wave. As an S wave travels through the Earth, the relative motion bet;ej jo (2sw)l,cgdjl3ween 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 wav (v0ibe 8:leple is a longitudinal wave. As a P wave travels through the Earth, the relative m0el (8eb :ivplotion 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 wavsw/rxx)d kt7ev .7j+ae 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 1jlre yk3w w(+.pxa)l v cg(f;discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and transmitted pux(rv( g1.kalj w;cwe+ylf) 3plses?

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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 4llf91h9cjag amplitudes pass each other on a string, one is traveling toward the right and the other toward the left. At the point that they occupy the same region of sj ahg 94l1clf9pace 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.kf/a xro3a18w/vchbp.ui j; a string. The one traveling toward the right has a positive amplitude, while the one traveling toward the left has an equ1/8.xo.; krafpi/ uhc va3jbwal amplitude 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 string fixed at both ends, u .spptg5mtr+ls9z 7p(;x na1x )+pf9q mqe9qoccurs 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 frequen n4ai3zg)60yu axwum:cy of that string will in0nm3azigu 6u4w ya:)xcrease 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 1j aej(nzo k-aa/*iv9azi-.7*xlnfv a mass of 0.600 kg is suspended fr ika. fvaxv7zol/ (ana-jn *e1j*9z-iom 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 along a horizontad,nj b2p *u(/kouwbg ,l, frictionless surface. The spring isdb gbnuw,*o2ujk / (,p 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 along a iz2 q*vu1cjgg+59urohorizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It91gr uiq+j5o u*czg 2v 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 sprio re/v8l:2ndgng 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 equilibr/8d2:nv go erlium 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 ovk+ :/8gsxqwlscillations in 5.0 s. What is the pers/xvk q :lw+8giod?

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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 q e;84znizlvunas 7z-.c q/8l 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 equilibz.l;8nv 7uzzc q a/n4sl8q i-erium 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 Ncck0q rdnb+p,md *o .8/m along a horizontal, frictionless surface. The object oscillates in simpl*0, 8p mcconkdr.qbd+ e harmonic 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 cm. T rggt4l*x d4*zh.6s8wyow/vs y6 ft 3ehe energy is 8.0 J at this time. The mass is cut in half, and the system is again set sv t8r*ws 44xw 6ody.th*g fe gl3y/6zin 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 20rlxl)bz77treny 6g l;i75kj5 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 pos) l;nr5g jz l77r7yxb elkti65ition. 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 sprink4esa* 3z0kgn g 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 positink*a ke0 4zsg3on. 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 attach*vioi7 68nyv2 -3lo x po8)q oynyyh5ied to the end of a horizontal spring of spring constant 50 N/m and set into57o 6qvyn2 viyx-*noi)88lh o3 y iopy 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 sprk)a 4i3loqtd und kj au(t/11,ing of spring constant 50 N/m and set into simple harmo(uqo 4aklk,taij1n )d 1/d3utnic 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 ofz-1k(q, gp 8mu b2, hx+nortdu an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kinetic energy of this vibrating ,m21qph-dz ru8, b t+xkogn( umass?

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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*qwlw4p:ojgf) 5- zg;uu/rp w -spring system is displaced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz igu4 *w5gf )z /ourww-lp j;:qps 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 ofnrd rr3l w.v02 spring constant 10 N/m. The object is dis rrnl032v.r wdplaced 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 attac4k 6k60gxx1t*fud c 5fg(cnavhed to a spring of spring constant 10 N/m. The object is displace0tx1k* cv4(6n a6cudgfgkxf5 d by
5.1 cm from the equilibrium position and let go. What is the frequency of vibration?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is hung from a spring of spring constant 18 N/m, displaced dvjvqw)f dyx*x15kd/3 qx/4cslightly from its equilibrium position, and released. What is tfd wxkv d35y jcq/q*xx)v1 d4/he 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 o*c.2d;t z1lew 7bjxoiscillates at a frequency of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximudwc*xe; lz jo i1t.2b7m 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, a,g5d+y: ;45 uamt yqykwt6 wcvre attached to different springs. Mass A vibrates with amplitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5a5 t c; 4tvydgquyymkw65:, w+.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 a spring. In equilibrium the mass stretches the f 1(y:oila0pk spring 2.0 cm downaypofi01 (kl: ward. 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 on a spring. In equilibrium the mass stretches the 6(uvqm l /)h(:ov9owdweum)dm+ 7ijp spring 2.0 cm downward. The mass isu9e qldumpm mov)o (vh+/ wi d):wj67( 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. I5y)96s,;hipue 2s k) repq:qacou5r jn equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Write down uuie pr c;, 9 5ya6)r:sjsh)o qke5qp2its 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 mt,e* o:rcb2af otion obeys the following position versus time equataeo2*br ,:fc tion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 fojf0*io5* .aq:uckd q9z l .nqwllowing position versus time equk 5 qa wu9ldf*qj0c.z i*oq.:nation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 ti mf*o6aj1 i(/ekkt0ml me equatifk(m ie0a o 6*tj1lkm/on:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 frxxa*z v2lw0;j ee end of a spring executes simple harmonic motion accordinw;2jz xv a*l0xg to the equation $y = 0.50 \; \sin (18\pi \times t)$ where y is in meters and t is seconds. What is the period of vibration?

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74#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A 1.5-kg mass attachesw4u 06cl hnv,d to spring with a force constant of 20.0 N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released fromn6vs04,ulwh c 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) Wh b) 4 evh3x-gm9ve s 5un4gcle7q+l.hsat are its frequency and pernqcv3hue5ms)g4e lvb74xs+ .e -lg 9hiod 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 vea5(9;or6fm 5xv ld2vct7 hg28.84 m long. What is its period on Earth?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum has a period of 2.0 s on Earth. What is h 3z fc)xr2:o0mq7hun n.s8wdits length?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock is 1.0 m long. What is its period on g i;+hva jucci *(p+6qv2*mgm the Eaimvm gq* a2v(jcu6i+*+gh c; prth?

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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 *il tqor-d7j8s w:u,q*d l6jblong. What is its period on the Moon where the acceleration due6r , b**j jdq8lud-ols7w qit: 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 consb2e.eh :*kgaz ists of a 0.25-kg spherical mass 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 2.0 Hz. What frequency would have resulted if a 0.50-kg mass (samk*z. ae:2hbge e diameter sphere) had been attached to the string instead?

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81#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A simple pendulum consisting of a 20-g mass has igt;hj 3s-5 nymr2)fponitial angular displacement of 8.0e. It os;5op-hryjfns 32)tgmcillates 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" t s.czupb 60mbbnf6 0wn +m6o.of a wave at a given time. The frequency of the wave p06b+f.tnw6.cmnbmozbs 6 u 0is 120 Hz. What is the amplitude?


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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. The frequency of theuog ndi;j75. rv -/jm)v2egfx wave is 120 Hz. What is the wav j. uv5n)gjx/red -;fv72ogmielength?


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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 given5amwv o z7/3( e43pdrp zigy*p time. The frequency of the wave is 120 Hz. What is the wave o3r(w4pm5e gz7p/ i *pd3 ayzvspeed?


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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency of a wave which has a period h-nfcu/t u di736m4y gof 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 withs0jsv i*02m,8zlbtrb 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 freqn)+q6plx5uo luency of 12 Hz and a wavelength of 3.0 ml5po+xlu)q n6?

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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 oj (8p1m8x okexf 3.0 m and a frequency ofxo(x8p8me 1jk 12 Hz?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency of a 2.5 */n g0czjd (oim 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 oft/ /q elpgl: li.+3zyi 1350 N. What is thgt:izp e y iq.l/ll+/3e 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. What is tetwp 6 41;n.kp jxllyf:pmx **he velocity of propagation of transverse waw6ppl.1kjpt x*4 f*lm :x;y neves 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 mi b6q 1 lrzpe-nlz)8.is 0.500 m is traveling down a 500 m long wire whose total masse1npz8 )zm-r6qll i .b 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 tr xv;1mloh.zx. j.mzf3 ansverse wave on a 2.0-m long string fixed at .m.vlz1;3.xohf m zjx both ends is 200 m/s. Which 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 has a fundamental frequency of 500 Hz, which one of the follf* cj0, rlmfh8h8 e8kil;yf0)x ryr: qowing frequencies can set the string into resonant0rkx0fmhfi lcf8;8y8rr * :e )yhj,lq 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 segments in a standing wavev95s i0mrq m snhb zzh(f99k(4 drivess( 5mvh90bzkhq zf (4ni99rmn at a frequency of 480 Hz. What driving frequency will set up a standing wave with five equal segments?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string, fixed at both ends, vibrates at a fre s7f5k adevx++quency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is nkf5de+sx 7+aveeded if the standing wave pattern is to contain 4 loops?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of linear density 1.5 g//mb( kk ,t9 h/hsxlspmuqv.(*m is under a tension of 20 N. What should its length be if its fundamental resonance frequency iv(.9 s kmu/k(l,q/*pmhsx bhts 220 Hz?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Find the first three harmonics of a string of linear mass density 2.00 g/m ugx-) a3 q5rhband length 0.600 m when it is s-b)x5aqh urg3 ubjected 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 b;-xoyxpuup; d) 6y0az a+onb4oth ends. When the string vibrates at a frequency of 85 Hzy6y;+ u - dxp0a)4o pzoabn;xu, 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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