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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 p9wsggok9;/1ow wqyjf8(eq6 df9+xnheriodic 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 cyclesum z9y; z4alh/ per unit time is called the

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For vibrational motion, the maximum displacement from tb8e/uuz g tfva0 hck* hk*kn)t5),1 lyhe equilibrium point is calle ul8khuh)0* /n) yf,t a k*k1ezbgtv5cd 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 itses2 .;iab6 s2e6n * saxr/qcct maximum displacement from exer esc 22q.6/c;ib6tna a*ssquilibrium, 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 SHMkv t v3,;5zoy j)ouo4n9k; cnc. When the mass passes through the equilibrium position, its , ) jk3vo9zyoucnockn;t54v; 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. Whenx--w ag,1t fccm3 x/fb7sjcp2 the mass is at maximum displacement from equilt j,- ag-xccb3f21/ 7wp sxfcmibrium, 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 spring and bobs up and down between point/zqasg 91qfl; s A and B. Where is qf19zals ;g/qthe mass located 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 bo79hcf j(vda-xztk)sg8c b) ;mg9ov2p bs up and down between points A and B. Where is the mass located when io- 29v)cpxa hst jz 7 c9dgkf);8vmb(gts 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 dohms12c di*i,tz 4qm0hwn between points A and B4hm ciqt0h 21mi,zd*s . Where is the mass located when its potential energy is a minimum?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and down brmhp016 sri y/etween points A and B. Where is the mass located when its ymr0i 6s1rp h/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 sytrul l4n(cbbj z:8sqs 61npjr13t0 q .stem produces what effs.: 0qprsbq4cttj8 l3(bzur6j n1 1lnect on the system's mechanical energy?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the mass of a vibratinr4ypn4 ;jrde jbv3./eg mass-and-spring system produces what effec/jj3 ;. vey r4n4epdbrt on the system's mechanical energy?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the spring constant of a vibrating massy:l .:9d 6qhlipdvg*y0)d83 , ia xa4ka bwahr-and-spring system produces what effect on the sysbp9lha, d:yqadah r) 6dy i30ki g8wx*.l4: avtem's mechanical energy?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass oscillates on the end of a spring, both on Earth and on the Moon. quc1a6.q h+gj Where is the period the grea+aqg6 qh.cuj 1test?

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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 systemxtv 4rfoqw14h7ns b;w g:0)s n causes what kind of change4b wn7g1 ;xwsn)t 0:frsv4ohq in the resonant 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 of a mass-and-spring system causha9 k8av k()soes what kind of change in the resonant frequency of the system? () kahs9oa (v8kAssume 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 causoidc 5/ u+mlc0es what kind of change in the resonant frequency of the system? (Assume no oth cc 0od/mli+u5er 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 attami,cn e/9rs1oched to a weightless string of length L. For this system, whenco 9erm si,n1/ 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 e2m9wpb1w cu (tripled, the time required for one complete vib1p wmu2wbc (e9ration

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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 mzxoh0d*+l qc 991 humx long. The period of A is T. Pendulum A is twice as heavy as penc l hxhm uq*ox9zd90+1dulum 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 tripl zbs w1b:4i2luqsec**qi9)gd ed, the time for one complete vibration increases by a facu2qb*lqzd * s:4ib9is1 ecw)gtor of

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to a simple pendulum's frequency if both its length)qpp o, p fjzo*:.eh*mo+xip0 and mass are incrhq e* oppx.*+),io: f0zpm jopeased?

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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 fo0 86sqmfh)ayx rth at twice the frequency of simple pendulum B. Wa0h8m sq) fy6xhich 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 the acceleration of gra)j6 jr j2nv 45xdej,bii-brt6vity is less tr bbi-j),r4j2 ni6xdv 5t e6jjhan 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 representsnd*.a nm4dcy01 er 43h:slusf


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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 represe ,bt55ivg-ozmc rneb 8u.5 y.ents


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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 represenes i nx*4dh6bcpo5y,9 e8dow(ts


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 ampgv+lq*5s uejfp(ng ,/litude 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 wave from equilibr kowg*n+bw;q7;rz4 u ke oc2+rium is called zob4nckr *kw rw7u g2eq+;o+; 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 successiv ts;o5i0j *p1t2 gr 6f0aokrhel q+-ide 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 tdcwfby(mt :tg0 4 cveb:i(z(9ime is called the wave'iy z(:mtt 9v0cb(4e (cgdbw:f s

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a wave, the frequency times the wavelength is t ,u: 0tuf7rk 0mbpebh; h,v; ,fw,uxzihe 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 inuj+2 q 5o+)la wzb2vzgcreases. What happens to the distance between successive crests if the2)v2uagb o l+5z+wjq z 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 wavelengtvv 9v,;:ee2bml/nx iph l and frequency f. A second wave on the same string has p l,/x:evb9;im2vnev 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 tensiol8f)c5og pne+tcq kn 9h6.9n fn T. A standing wave is set up. Which of lnfc)fno5 nqt8ch 69 9e gpk+.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 oqzray3d k8 h:k 9sj5w.f a wave in the string is v. What will b:.9 ra8yw5qh z k3jskde the speed of a wave in the string 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 and length L is under tension T. The speed of a wave in t;,uc 4q.k wce l4cnxq6he string is v. What will be the speed of a wave in the string if the length is increased to 2L, witqw,;clqxce 4 ckn6.4 uh 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 speedn1w7/qh8 zqg/btu4my/u l8jolz:+dtt ,b7jl of a wave in the string is v. What will be the speed of tz /8l+ btyjh u,zjl w /l7qtm7dog/8 qbun14: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 kuen84u;0cz kizc 0x:transverse wave. As an S wave travels through the Eac4u;x0uic kze: k z08nrth, the relative motion between the S wave and the particles is

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In seismology, the P wave is a long henq cgp1*;,ditudinal wave. As a P wave travels through the Earth, the relae,hg 1cpq;dn*tive 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 wa3u58gywb bv (ove 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 reachesdk9nb5 1in /zs a discontinuity where the rope becomes thicker and heavier. What is the orientation of tnk/ ns1dbz59i he 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 ugle/jk705rp vm(sby0hb /; g 58ozrkon a string, one is traveling towardkj bp 5(h8grgm0; 0/ro y5v uzbsek7l/ 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 tk ey.ve qt8kru-r 1x:/raveling toward the right h .quekt/8-rv:1yek xras a positive amplitude, while the one traveling toward the left has an equal 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 strin/c d1x bvi2dnvne8;23ro uv;dw+wy6eg 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 vbdr1 mjf,h/5liolin string, the fundamental frequency of that string wh5,1lrj /m fbdill 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 whe6uhnorzkppj.(v 9 ap yt4)p;7 n a mass of 0.600 kg is suspended f .o7)ppv zy un pa9k6;jh(t4rprom 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 alo8cl7sep-n 2h qng 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 thqs8p2n -ecl7o 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 spkqno)q;hs j51d zw-z/ring of spring constant 60 N/m along a horizontal, fricqqnw zs1z);k/ ojdh-5tionless 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 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 springt,u1 naz:lycfu 2di70 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 f 0d zl:cn1,ut27yaiu 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 oscillc* p704epn5 n,gazpgu mp)aa9zxfo)*ations in 5.0 s. What 0pc*n mxu9agn4e7 )fazz *a g,5op )ppis the 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 the free end of/vrsubz cvo(b; 8c7 ou ju:xv0bw:zpm4nt, , 4 an ideal spring 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 euzp0:/ju;v8cbro u4m(vx bo,b:vzcsw7n4t, quilibrium 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 spr/ .4kzdo8oe) nob5par ,tu xg8ing constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simz o.x,a e )8n8o5bt rgk4up/odple 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 cms ff.8yfrvy/. :bs +0ypw xr(g. The energy is 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 the energy of the system fvf+ b: r.x0w 8/fssy rpy(yg.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 co+ z+k;-q. me- u 3y wt;u5avzbzamrec/nstant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmony ezk-+mqt -;z35zba+u.;v/ ae urcwmic 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 along a 5nzpw-ab4-so6jqbbt /1z o;n horizontal, frictionless surface. The object oscillates ins oj- a;opqz5wbn614-ntz/bb 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 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 horizontalojgbd/ywn16a3 w, rm9 spring of spring constant 50d9m3 j,/grwn y1baw6o N/m and 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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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 t*sso+i-:o .6dmf i/xlhdc:y spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. Wi6di ls-t sc/ *:.m+d:x oyhfohat 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 spring o8ila bfq nt6cjc1q4cl6/n26ezx .;p zf spring constant 20.0 N/z c/lf liaczqpnc642t ; 1b68.njqe6x 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 frf+nql*9 f(abzom its equilibrium position and released. A frequeq 9zl*an f+(fbncy 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.w2u7nlpoy: s z,y 9i2b The object is displaibpz, ls2y 9:7nwyo2uced 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 toeqxa1/-mhxgo/- o f; cv io90g a spring of spring constant 10 N/m. The object is di9 /-ggh voc e0ax 1x/;-mqoofisplaced 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 (az2fx2c7 ,j tc,uwuja spring of spring constant 18 N/m, displaced slightly from its jt cz,2xau2wjc7f,u (equilibrium position, and released. What is the frequency of its vibration?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring. It oscillates at a frequency o5o wzxg8*x8i: -oyu ndf 1.27 Hz when displaced a distance of 2.0 cm from equiliw5ygnx8xo:i8d uo-z*brium 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 differe4i;k5 1 rwg +uyg8 ngafk3rxp8nt springs. Mass A vibrates with amplitude of 8.0 cm at a frequency of 10 Hz and mass B via;f8gyn kw4pr g r8 3u5ikgx+1brates 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 a spring. In equilibrium the masso +;vudh51j f0s pl4wzse2iy/ stretches the sprilfeiy54 + d ujsp1oh;w0z/vs2ng 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 on a spring. In equilibriu x+iep 7x+.trq l,(xm ss2yrmar5lx77m the mass stretches the spring 2.0 cm downward. The mass is +s7e7yxmr 2lt+ xrp(mr xx,q 7ias5l.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 themzua.1csbwa)oe /* jrom ; g0- 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. Wsau*om rm 1a;b-z)./ce ojg w0rite 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 obeuxif nm03;u0 sys the following position versus time equation: m;uu 30i0xfsn
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 mu4oum4n/mk 0nj:9dp z6ie + qdotion obeys the following position versus time equation: 04epm6j9omd uni dun +kz4q/:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 harmon1 toez 28hu(nwx+c4sr ic motion obeys the following position versus time equatiou2s wrht 8(nxzec 1+o4n:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 s6 -vhd nc7aivbm(exsf dxypm,t916 3,imple harmonic motion according to t xnidty76v-s hd pmc, x(amve9f13,b6he 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 constant of 20.0 N/m omnawc43-*wsepx4 pffc:+q 1 p scillates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 cm. (T*x+-44cqp f1sm wppwf:ace3n hat 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 87z e h3sx -vpod;e, sw ozwm66epb/2p8.0 s. (a) What are its frequency and period on Ea ssz 6w2edeoo-mx7,z;vhp p683peb /wrth?

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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. Whbci ag6ns aq.ykk 3jyugfd0:m0d*6 , -at 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 oqfpa77 t*w9p ((frbsk f 2.0 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 grandfathe w5l)2ofs cza6r clock is 1.0 m long. What is its period on the Ear6aco2)5 zls fwth?

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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. Whatp0gi +t2/zwsg is its period on the Moon where tg 2w+ztigs/0p he 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 attached to a massless st :f-bd7ppn*wn ring. When the mass is displaced slightly from its e*wdnp f :nb7p-quilibrium position and released, the pendulum swings back and forth with a frequency of 2.0 Hz. What frequency would have resulted if a 0.50-kg mass (same diameter sphere) had been attached to the string instead?

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81#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A simple pendulum consisting of a 2-w,hlw 2 3vgjsp*to u50-g mass has initial angular displacement of 8.0e. It osc5vljwh-o,p*3gs2 uw tillates 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 "snh 99 c1m/u2uk+kklsk6ksc1j capshot" of a wave at a given time. The frequency of the wave is 120 Hz. What is the amp kuu126cj1/k ksh9k lm9+ckcslitude?


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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 waviuw*f.wn 2ip -e at a given time. The frequency of the wave is 120 Hz. What is the wavelen.ii-n puw 2f*wgth?


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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. The frequency of the wai tcpun+7 -.buyenk m/av)k3b7mj43hve is 120 Hz. What is thecuy/.+e3annh 7m)b3 7m putvikj bk 4- 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 a wa 5dz)3hb16b k:q pxyngve 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 15vg-z*cb s)4oh00 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 hac3; blzzzb 4+zs a frequency of 12 Hz and a wavelength of 3.0 zzbz4;bc 3z+lm?

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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 tha+op (xx yp8k o ,-3:uuxp u33wndw.hkkt has a wavelength of 3.0 m and a frequency of 3 uy+khp(xw:kx3.p npuuk8,-oxow3d 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 zy-e82ywiq. j2.5 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 0.0wgg( gf /+3 j:l0tfddj050 kg/m is under a tension of 1350 N. What is the wave spjgdt3d/jf( f +wgl0g: eed?

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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 tensiozno1nhx3 r fd2f7j6u+s 8z/x ml o:vp(pgv m66n of 180 N. What is the velocity of :n 7v/o3mfl 6 68v( gnrhpf+jz6dszuxp o2x m1propagation 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 e*i) a7zs ggg1pn2 zqf 53law(0.500 m is traveling down a 500 m long wire whose totga7l51g wei 3 g(z)fpas*qnz2al mass 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 transversee.48k mkc+1uam 03q (j) zbev z0zqawo wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a resonantz k38z ow) q.ua jbz(mev0k+0qme1 4ac 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 oroz dqb9whw8v04 d,1 following frequencies can set the string into resonant vibraho0,vd4orbwwd19 q8ztion?

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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 havexcmfaxcbfk w*-(ne. r2 2yf,3 four equal segments in a standing wave driven at a frequency of 480 Hz. What a b2 xw3nm.xeffc(c-,ky2*rf 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 frequency of 12 H;. neq0 sx1exzz with a standing transverse wave pattern containing 3 loops. Wh0e ns;. qz1xxeat 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 density 1.5 g/m is under a tension qhp uf(+b:uyt6a; fd5of 20 N. What should its length be if its fundamental resonance p5qf yfh(:+tbu6;au dfrequency 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 harmonics9k3jwbms106b f yi7ow of a string of linear mass density 2.00 g/m and length 0.600 m when it is subjectsmwbik6f3w yo9 17bj0ed 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 fixe.5q;crki 1v i,j7oi rld at both ends. When the string vibrates at a frequency of 85 Hz, a standing wave with five lolkir. ;,jiq5vrci1o7 ops 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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