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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 perisk 1.w)woy6ew odic 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 per unit time is)kn14jgdfi38ojdd 9lp c;7ge 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, 0q n,/gjokd 52ouc4ia the maximum displacement from the equilibrium point is called tgoa j5k qic o2und4/,0he

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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 maxtwdhl0p)oshp2uj6e5 d(::b -pym 9k jimum displacement from equilibrk:h:m92epjd 5pj)-o ps0 (hdwbtl yu 6ium, 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 passe/w on5eb7v9r.gnh8m p9x* ft bs through the equilibrium position, its9mw og9/fbrp 5v.n8h b*exnt7 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 SHMf9f6z)w s )co8+wxq a6jmzn7m. When the mass is at maximum displacement from equilibrium, its instantaneous ac9f)zws6q m)z68n7m+c ajwfx oceleration

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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 pyl7n(+3*uvojt qrf5 soints A and B. Where is the mass located when its kinetic energy isy(jvfuq3* s 7o5n+ rtl 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 dows -e :q82up tfn5ci-7ezl .un v0q;zwgn between points A and B. Where is thetu plcn segn.5fq- vw i:8 u7z20z-e;q 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 tm/ , tr ;j7k,7blij,qivaea. zo a vertical spring and bobs up and down between points A and B. Where is the mass located when its po,mk ;q7jteir,bza ji/v .7,altential 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 spo,wx b6 cb 650qldtsk/ring and bobs up and down between points A and B. Whew db6, qosck65txl0/bre 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 mastv) 0c(z s7r3b 5brgfgs-and-spring system produces what effect on the sy7s)(3gz0t5rgvcbr bfstem'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 a9)e 9ckx qstqv 4w+k(bz z1z0y vibrating mass-and-spring system produces what effect on the system'skxbzc4) zq ky eq1+(zw0vt99s 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-skg;a y qh38d/and-spring system produces what effect on the system's mec/d h8kq;y3ags hanical 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,z zo6t2*lb d rxab ivfl,6.x)ho,x4, j both on Earth and on the Moon. Where is the period the zo6 6,tbx2fllxz,,orva jb).x4 *dhi 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 wha629ebf(lnses +a 7 qvbt kind of change in the resonant frequency of the system? (Assume no changsle v +7f (6n92qaebsbe in the system's mass m.)

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the mass M of a mass-and-spring system causes wha yfc-;bl0f 5dut kind of change in the resonant frequency of the system? (Assume no change in the system's spring cof lu;dc0f5b -ynstant 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 av9s*;t0arl enc(+k lof a mass-and-spring system causes what kind of change in the resonant frequency of the syn s;*la l0t+9ca e(kvrstem? (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 fyrz2o8u/8 y7lm qt. ea weightless string of length L. For this system, when un lm.8 yyurof/78tz e2qdergoing 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 isd:9q 88 vqr+9lh1))kk rox1zjc+r3nv u nsqgh tripled, the time required for one complete vibratiqv:uxk1crrqg+3 jh1 s89k89dv +q hn))oz lrnon

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Both pendulum A and B are 3.0 m long. The period of A is T. Pendulum A is 8 q/ w,j 2g. xdtux:z)7uurgjio67n iztwice as heavy as pendulum Bi,q2ugnr x8u)ow/.d7 gjj xz 7t6z u:i. 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 triphet bgcb)ml c9,/;na9k fgpl :vxo6n a.w- -p3led, the time for one complete vibration increases 9xvfboebmnt- -gc:w3). /a;6angl9p , h clkpby 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 frequegkmo qoaf,1ikj7.uq:hp0 g,/ ncy if both its length and mass are increaj/ahgoo.q:,k7 k0 imgf 1q up,sed?

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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 frequency of sizt8a .kjc5 cj*kwdfe7a9f972h k rgy:mple pendulum B. Which statement :datj7wfey.cr99 8*cz2k k75f agh kjis 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, whec)-y-5hcqfks+jfk8w qtx f7. re the acceleration of gravity is less than on Earth, the resonant frequency ows+ h. fcx8c7k-ftqf )jqy k5-f 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 represenktw (x:*57a: w gf9kcamw 7ylsts


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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. 11-10od8 ja4dc3 yu represents


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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 represes,u -,m r3:8pyp o e/g7dyfr1(pkmfcints


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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, thedas*2fc k/v(5(in cxfdjx)a0 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 the39j b6us,um0y yps.lw wave from equilibrium is callj 3 mup.9yb6,w su0ysled 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 successive crests on a wave is called t:zlu(e/pdjv* )/ kpm2y s ajy7he 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 ooz u3vld dn.f4rkqpcj),57 6fyhdy )6 f a wave passing a point per unit time is called the wave' d6jlypfdqu)ynrvk ,zf .6h4ocd 3)75s

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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 yt yf 2(aipcmd,bi:0 /hr; wodpoq0)*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 between m xl(( d8ip jplz:q0+zsuccessive crests if the speed remains constanpilqdl(p8mz+( z:jx0 t?

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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 freque-,jwua4kfdn5 ncy f. A second wave on the same string has wavelength 2l and travels with the same velocity. What is the4-dnak, 5 fuwj 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 st.iz1 veri3 * sd7drgrq7 z/2kcring of length L, mass M, and tension T. A standing wave is set up..grzricv2d/r3*7di1kz qe 7s 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 ra2u*zn 2by +cL is under tension T. The speed of a wave in the string is v. What will be the speed of a wave in the string if the mass of the string is incre2+a r2czy nb*uased 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 axhf 9ztozvtt -6 ho1*5nd length L is under tension T. The speed of a wave in the string is tthf xovhoz1*95-zt6v. What will be the speed of a wave in the string 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 bfthy f;e+rc6vqoz,i;.q;d +. The speed of a wave in the string is v. Whavqo; . +;6,thbec rff; dqiy+zt 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 transverse wave. As anb+do*289zxy kee rq g2 S wave travels through the Earth, the relative motion between the S wave and the particle2oq *key xbr82egdz9+ s 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 wwr;cf e4c;f u-dz z0,jave. As a P wave travels through the Earth, the relative motion between tjerczf d; f0 ,;-cuwz4he 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 wave is,9* (njtnts )upye8t e

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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 a 4hh.0y+d(dgebfc 6wm long a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected aney 0hhf(.c+dmg wdb6 4d 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 eqbbn9d f1 p1n(ln/u lgcqz +1w-p 1bkz3ual positive amplitudes pass each other on a string, one is traveling toward the right and the other toward the left. At the point that tp/lnk qwg3fnz dl9 pbn1b( 1bu-c+z11hey 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 acznr*3eq+p4m,z8-q lz7dqt h string. The one traveling toward the right has a positive amplitude, while the one traveling toward t4md+qr n,zh7 qpq*3 tlzc 8-zehe 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 string fixed at b6gb2vo au+/s7c4,e scm *5vbh(wg tqn i6c uv7oth 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 i0takfh+y:wpe; p:.u jn a violin string, the fundamental frequency of that string will incr 0e: +k. uyahjwt:;pfpease 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 conll hifymw (ffx83/pyh 4)(**p ,aexwmstant of a spring that stretches 2.00 cm when a mass of 0.600 kg is 3ff(ymwi*hh*lypflm( xpw 4a e8,)x/suspended from it?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constx . o1uc6d:s-clufs4dant 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 mad: sx udsc-.c uf4lo16ss 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 oj 6gcox23/o dgf spring constant 60 N/m along a horizontal, fri2d36xo gjgc/o ctionless 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 spring cifz3ezw(ynt2cd c7p.ahza7 1 ,aw,6 sonstant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a forp.az12t yc sza 7d7fz6,i,aecw h wn3(ce 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 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 compljpehexh81 k6un(,nh s0bc 5t; ete oscillations in 5.0 s.50jckh1n ten s(8 xephu;,b6h What is 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 nm0 8iuihb)xh9l/f51tsll d: 7j9 tnzend of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinet9t)9tin xbl5sn 7 huhfz0 d/:1lmli j8ic energy of this vibrating mass when it is 0.30 m from its equilibrium position?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a sp 5hw2ji ry6,rp*b6oqu ring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and hasj62,ur pw h *b6qiy5or 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 9ukt6y d)gw kz t2,j bh*6tw9swith amplitude of 4 cm. The energy is 8.0 J at this time. Tusy*9tzkh6)6ttw 9bwj2gk , dhe 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 co0 wcm6wy3zapv1w(.e onstant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonpe 0 v1mya(3 6wwowc.zic 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 attae5is* t6j x8vzched to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a sp6*5sxj8vt eizeed 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 attdk t6tr/pmr0.91y e dwached to the end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical en/dd96m1prkey. tr0w tergy 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 horiiqt-8 k7*wh ecu4wta+: l2dsa zontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical energy of this system? *s-:24wda k cil+wq7ateuh8t

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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 od 4ugmw 1gf;ts55wir10 os+ cfrom the free 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 this vib1mg 0 ctdowosiu+sgr 4; 155wfrating 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 (k36zi8m1u roms pk6b its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would 8sb6m ukp 6o3i1 zrm(kbe 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 t:: xrpf2dk . ,0qx*nspy0ci j48ndq fao a spring of spring constant 10 N/m. The object is displacedn48x.f2,p: 0 jx*d0nr pcaifq: s yqkd 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 hb2u( oo+*k *g1mrpy pto a spring of spring constant 10 N/m. The object is disp* mg*oy +1p2pukr(bholaced 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, displackz1l:*uls .axup yh 3;ed slightly from its equilibrium position, and released. What is the frequency ofpl*:ah .ux s1;zulk y3 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 oscillap(5s/ *:m8 wiwhfvb tntes at a frequency of 1.27 Hz when displaced a distance of 2.0 cm fr:5 mpb v8h/ twi*sw(fnom 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 spring)wk.lra8 nvb (c zu+w7s. Mass A 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 Hwz rwbukn+( ).7l8v acz. 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 spri*:vu mfljxj2,2 vus3 ing. In equilibrium the mass stretches the spring 2.0 cm downward. The m,mv2x2 3uls v :*jiufjass 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 thefy92-deigv;u2c z x ,g spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the total energy of the sy iuc2ggz dv2-;xey,f 9stem.

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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 sus5h.vmf*.zb kqjm w 4wd9 nu2w0pended on 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 donkw2f5ud*hvww4j . 9m mbz 0.qwn 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 fa)m p7gi/m6yt ollowing position versus time equation6a/imyptmg 7) :
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 p2)oo j9ip6tlyt-,5u7x,zc m pgce5wequationj l6oyt ptcw-27x 5mc p,ie),ogu p95z:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 75ob. ke:jqu vposition versus time equation: kq5v o7j:u.eb
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 ewwphk(4,)k e5n z +zgend of a spring executes simple harmonic motion according to t(k+gehpze kn4 w,z )5whe 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 oscillates ouyvfbbzeog 8oktt8 ;50)8+15kdnto xj 9(iqln a horizontal, frictionless track. At t= 0, the mass is released from restdt;jtb(lfei8o8nz15k)+8ybuox o90qv t k5 g 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 freqy9-+ qjbtq mriivm .yq1b/(m0uency and period om+(qq9iq /tyr1 ijmbm -vb0y.n 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 lar qv:5 :,cyqrong. 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 its length?kq g2l dv9ws/-

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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 nqh*yez22 5yk:b m)zrc0 uh i7m long. What is its period on the Eartmz5hz 7q2chuy*0: ryeb nk2i) h?

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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 grandfa1 lx2pzh o5cs3ther clock is 1.0 m long. What is its period on the Moon2oxzl3h5scp 1 where 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.ty htip5;i7fr z1;d4 r25-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 forthipf ty;t5rd; 1r7hi4z 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 20-g mass hascv1q pr3***u p9dsqda initial angular displacement of 8.0e. It9 p1vpa*usd**cq3drq oscillates with a period of 3.00 s.
(a) Determine the length of the pendulum.
(b) Does the period of the pendulum depend on the initial angular displacement?
(c) Does the period of the pendulum depend on the mass of the pendulum?
(d) Does the period of the pendulum depend on the length of the pendulum?
(e) Does the period of the pendulum depend on the acceleration due to gravity?
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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. The freqb,mr rowi-merf) r0j5t+ p--z uency of the wave is 120 Hz. What i -mr 5rm-jforp ewitr),zb0+-s 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. Th) g3rwi1m *ww6 rir1(t vmyeh)-jbe2m e frequency of the wave is 120 Hz. What is the wavelengthemr iew* 6)ih13bw- yvwm2 )1jrg r(tm?


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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 frequenc)+va a wi/mqt7l,/e zfy of the wave is 120 Hz e+z)l7ia/tm/f, vqwa . 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 a wave which has a perb5fap nkvz* 7*iod 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 w)-l67sd fy ubsith 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 it igj-w c o7/iblt+,2qf a wave has a frequency of 12 Hz and a wavelength of 3.0tq 2lcg/bi +t,ioj-w 7 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 ah: x )5asj-lynnd a frequency of 12 )n sjal y:-hx5Hz?

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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 2::z6wcclme9mafu6 of 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 u u31k+)l5hmskyfwm d2 a3md10uln:i dnder a tension of 1350 N. 3:)m 53dmmd2h0+1l sk nfuda 1l wiukyWhat is the wave speed?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of linear density 6.0 g/m is under a tension of 180in:pa q-a;(i9un e, ts N. What is the velocity of propagation of transverse waves piu( - nt9,s:nqieaa;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 i0ujfc6gz 1 s2xs 0.500 m is traveling down a 500 m long wire whose total mass icg1z6 uf0 x2sjs
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 transverse wave on a 2.0-m long string fixe *0damub9rtl0cee up05h 2bp 8d at both ends is 200 m/s. Which one of the following is not a resonant frequencyep ph mc0*ulr8ab2tdeb 9u 005 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 gru fz3 773wuoof 500 Hz, which one of the following frequencies gz3 wfu7uo73rcan set the string 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 have f h1 mvv4c 0p7;31jlk+d yipcgaour equal segments in a standing wave driven at a frequency of 480 Hz. ; ym470lv3ajvph+c1 c dgki 1pWhat 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 atf udmc-55hr jj ;ktn1ed18b2 r a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What fr1h5-8 jtm1 ;ckedfd25ubnjrr equency 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 of5 uaai fcsmf /hyg3pw)m 8-:1f 20 N. What should its length be if its fundamental reg1) /i- scamf3:f5ph wmy8ufasonance frequency is 220 Hz?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Find the first three harmonics of a string of linear mass density 2.00 op+md*- g ci1;g,s rbti7nzr:g/m and length ti7o*1n+r ,pi:mcdr-gg;b zs 0.600 m when it is subjected to tension of 50.0 N.

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99#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A string of length 2.5 m is fixed at both ends. When the strinikppklx2qww/.ry x,q:n-v - )g vibrates at a frequency of 85 Hz, a standing wave with five loops is fw nk:y-il,ppwx-vr )k/ .2qqxormed.
(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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