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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 procs8rai01xxf,g ess 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 njyo.f l;/bh*55sazm t0 ug7ncalled 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 equnpr ..jr. 6f5iy c*6fhoc4 apbilibrium point is called th fp6c .ar 56*.bn4ri fp.yhjcoe

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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 displacem 5lq6nuq0og8n ent flgn5uo 60n8qqrom equilibrium, 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 underg a3t8yk1 yyed1f )knz+oes SHM. When the mass passes through the equilibrium position, its instantan18k3tn1e+zdfyk ) yyaeous 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 iuf)+brkozi;,4cr c 4 is at maximum displacement from equilibrium, its instantaneous acceleratiof 4b+o) r;zi,i4c rukcn

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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 eb8dbs 8.f 7 vzj:p2y cd3lnm6up and down between points A and B. Where is the mass located when its kinetic energy i8dl 7v nz2bmce s8.pdbf3jy:6s 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 down between poiv7y;k ss9hr / 5 +v2iiq kc8f/veg1dwants A and B. Where is thd r8k 9sy c/ /e;5fqavi7g2hvwk+v1 ise 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 ve 7 wf5w(9is 02is *7lktpeyhvqrtical spring and bobs up and down between points A and B. Where is the mass located when its potential ener92 t57 vswfw*iseihkqly p7(0gy 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 ac( + j3if h5qxh*jaz1up and down between points A andh5jz j+q(ahfxia 1 *c3 B. Where 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 vibrati dc/)bcwsq-( tng mass-and-spring system produces what effect on the (tb-/q)dcsw c 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 vibr2.ogjq b -leeya91oy 2ating mass-and-spring system produces what effect on thb2y-2j.ol 9oe1g a yqee 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 mass3xrl 3mcev08 9h og gu9*g* j(4xoj*fr7tzq as-and-spring system produces what effect on the systemg7 rl89q fe*vu* x 3orsx0tjj4hg9zo(g*3cam'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 Mo694 yka:kszk yt 9t(jhon. Where is the period the gres69 9y4zatkt yjh( kk:atest?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the spring vbr,.0yd i ny5vcno7or y-;mq0 q7ku+constant k of a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Asd0vm 0;nu+,i 5y.cryyqb ko- o nvr7q7sume 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 causes what kind of change in 5w ll -4dhe84emoq4ug the resonant frequency of the system? (Assume no cqwu d-l l4 5ehe8gm4o4hange 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 kin2 myb1uw q-x/ud of change in the resonant frequency of the syste bxyqum1w/2-u m? (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 toqnlx-06kzz9awc. 9l r a weightless string of length L. For this system, when undergoing smk l6.-qzalnczx9 0w r9all 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 trip. m bf3wigikm7xygz0:z:l(c9 lnm 06kled, the time required for one complete vibrafxgmk :9y7nz w.izl mb6c00:l3i k(gmtion

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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 m2 *e6 /lkxosht a-k8kj long. The period of A is T. Pendulum A is twice as heavy as pendu-xko6lhs*8etk2 /ak jlum 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 tripe5 : 6q z*3m+ scaueree;f2ahhled, the time for one complete vibration increases:a erqf ezm+52;3 6 uhsa*heec 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 simpee9n504b yh qqa 1ae.wle pendulum's frequency if both its length and mass are ince4n9a.ye h0bqq1a w5ereased?

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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 fs,:9e i4 ldk sl *)dj-;gh win+a7qtnirequency of simple pendulum B. Which statement g9 tnwejksi i)q a*-:;l47hd ild ns+,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 toene /4 ) a;0hc(vf6e mesl ji.q2a-rwg the Moon, where the acceleration of gravity is less than on0. qf;wir) cml4a(/a h jegese2-6nve 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 reprep;m 3 h vh*-x y--9qwhcv 2hcpp4vqj)hsents


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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 g+ ey*5sk d.q6 qdk6mhrepresents


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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. 11-1i29h h0xj62oafdp8gyez* epjp,8 v. l represents


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 vibratior6 49u e5:e fp ((6un/,,r3azqlkbcwvmxvpmv n, the amplitude of vibration is found to depend on the

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a wave, the maximum displacement of po tn ioad/0-bj5ints of the wave from equilibrium is calljn0d o tib5a/-ed 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- ne.nob9ls on-y*1hf 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 ungrnq2 0 -0yelfit time is called the wave's200 n-rfgylq e

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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 wavele8l1y o 0cst1j+pik fm1ngth 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 be pe+5tp3kd;f tuq p.)dtween successive crests if the speed .5upddte )ppt+q ;f 3kremains 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 .8-rft f:q6wgbfex u(with wavelength l and frequency f. A second wave on the qb8:rf(. gfw6 xf-eut same string 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 1jotqrd0+v)x t ud 34con a string of length L, mass M, and tension T. A standing wave is set up. Which of the followingvcr+u13 oj4d0 d)q ttx 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 .jf:)nqy 0m5k pbohj 5tension T. The speed of a wave in the string is v. What will be the speed of a wave in the string if t5bq. j0f5 pk:mhjyn o)he 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 arytn57kdqonzmc8p 0 1r.b1y/ wave in the string is v. What will be the speed of a wave in th0 58bryo17d q nzp y.t1rnk/cme 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. The speed of a wavevch4i 50pf7y u in the string is v. What will be the speedcf0vu 7 p54ihy 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 waab9tlrt7 5p ol;v0( gwuerv0(ve is a transverse wave. As an S wave travels through the Earth, the relative motion betwlv;b v57(e ut9targrw0l op0( een 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 longitudinalbrxp n+(k :kn:ajn;8i wave. As a P wave travels through the Earth, the relative motion between thernk pk :ia;b+n8x(:n j 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 waver : .p5modbj0m sg2w6v 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 discontinusn0a -o;, ug 5vgzuz;ms o;8jxity where the rope becomes thicg m s usao50n;ujx;z,z;v- g8oker and heavier. What is the orientation of the 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 on a string, one jem(x4vw xvs(f c:u7*ur zf 49t.5dsi 9idlw5is traveling toward the right and the other toward the left. At the point that they occupy the sam9i57vj4zs ef *wvw(fuurts:9x l.c( 4dx5i dme 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. i1fca btl axv;(9n )citu;3- jThe one traveling toward the right has 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)jucba9x3( -i1af n ;tilv;c t 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 . (qr35cg;rt spc53wsef3i lf 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 violin ,l;q -8i w2ri/ jbwvvcstring, the fundamental frequency of that string will increw 8iq-bcrwj l i;/vv2,ase 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 constan(t7yp*. - zsbzb3 2vdj9hmed zt of a spring that stretches 2.00 cm when a mass of 0.600 e- 23ybjmp tvz7(bhdzd9z.s* kg is 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 constant 60 N/m along a horizontal,qn7u ilsxc/h3* o ,ov( frictionless surface. The spring is initial*n3(q/iloovc7h s, uxly 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 con4 yffa erf17dd*rokr7mk6x;: stant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a fdkr4 : f;16erm*7dyoxaf7frk orce of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the period of oscillation?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constant 60 N/m along a.oqzif pow:) / 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 frequency of oscill)/io.wp:o zfqation?

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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 comgbv ,+wa7m, + sb+petbplete oscillations in 5.0 s. What is the perio evsw,a7,p btb++mg +bd?

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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 og i0acssn/(o *-(duk 8+fjkgln b( f3ef 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 equilibrium/8nj (id l su0f sn cg(a+-fe*3(kbkog 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 aux*abnw7 l; 720 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at theaux7; b7ln aw* 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 ene , t3ictr;yrc7nak18 nrgy 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 oftcn7r1yn,ar ;8c it3k 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 attachji ,pn ccz3 ev7x:06h /xbsb.ted to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscilbvxp0,zsxcin:6 c/h 7t je.3b lates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. What is the amplitude of vibration?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a spring of spring constant 20 N/m along a horizqv ry3ok jq.26ontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. At what location are the kinetic energy anr vq6y2qkj .3od 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 si3+ n(r huwf r( ,atfer/*d;orpring constant 50 N/m and set into simpl+fo; r(huirf nr(* e,rtdaw/3 e 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 ontnb xh9g4ua dd j0op*s896z 3f 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 6jzu* x ng3d a49p890n obdsthmechanical 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 foij1-ng +2 klvt, p/ojk nl(+rsrth from the free end of an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250 m. What n-i,j +/( t21 grl njokls+pkvis the maximum kinetic energy of this vibrating mass?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of a mass-and-spring system is displaced 10 cm from its exi 3:klj p5f;m 6zts(bm;cv 8.rja 5oyquilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been d mmcxy3;j 6s(kotz ;j.r5p lvbif5:a8 isplaced 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 constann.zg t;vmlah-j58v l8t 10 N/m. The object ivgn8ahlj5. 8;lzvt m-s displaced by
5.1 cm from the equilibrium position and let go. What is the period of vibration?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached to a spring of yr b rit,.p8) mu*.jqaspring constant 10 N/m. The object is jq,.b r)*ty.8 umriapdisplaced 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 kwuq .8r8 /qs1x 498qwgxtyde spring of spring constant 18 N/m, displaced slightly from its equilibrium position, and released. What is the frequencyxy8wequ98.d4 q xwkqr 1/tg 8s 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 .ajk;m cn9k.l .2y2p zzs7jdia frequency of 1.27 Hz when displaced a distance of 2.0 cm l;zn7j 9ykkjs2.. i2.pdamczfrom 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. Mafqii29ix9pf 25 ;h rwbss A vibrates with amplitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5.0 cm ari29 xhi wbfq25;9fipt 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 susu.k 8: pnd k39t/1as u.m-pknk/mcfaxpended on a spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then 8uksp: f-pt3.u x. k kcn1nk/m9da/ma 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 equilihx9ovovjo hkmwnt-p d+4gy*6i8k1; (brium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional +( oniw gvvdpy j1m*;h6tk 9h-k8o4oxdistance 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 t/. g3gx 84d +vohuyxrahe mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 vg 84+ydx3a hg u/r.oxcm 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 poijqn7p q 4d k60 x9z3f/.dsrh9rmv6t zsition versus time equati6zkrzjnfi pdxsqrv3 4 0/ mq.96htd97on:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 3 tqg.yvb;cnfo-s6-rposition versus time equatio 3rcqnby6-tv-;.gfson:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 p*(e sgw0)n0 nuk)bh yk dd/54tjxwr6*b unj,time equatio6s/dnhk*ptndg4 j,n* w(0 b )uxr je50) bkwuyn:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the maximum speed of the object?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass attached to the free end of a spring executes simple harmonic motio*jcgsn,-x a p.eh s1z:n according to the equationx*s1 ,jzp.sc nhg-:a e $y = 0.50 \; \sin (18\pi \times t)$ 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 20q f m8,yte4r8f.0 N/m oscillates on a horizontal, frictionless tr,4 eyqtff8mr8 ack. At t= 0, the mass is released from rest at x= 10.0 cm. (That is, the spring is stretched by 10.00 cm.)
(a) Determine the frequency of the oscillations.
(b) Determine the maximum speed of the mass. Where does the maximum speed occur?
(c) Determine the maximum acceleration of the mass. Where does the maximum acceleration occur?
(d) Determine the total energy of the oscillating system.
(e) Express the displacement as a function of time.
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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum makes 12 complete swings in 8.32w;2flm +rp5ua iqh1 pxha*n 0 s. (a) What are its frequency and periodf* n2hu512p;m ra hxw+qpali3 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+3 7rjgig8 w rf-)nc7jh;pxia. 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 b igbhf.l66s)-gdm1j. 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 long. What is its period on the v,2jiyy t :*orEarthyojri2y *:v,t ?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock is 1.0 m long. What- ,vv r+yuco2+ sqgd4s6 ihka, is its period on the Moon where the accel,ok c4rsu 2g+vq a-6y,vish d+eration 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 mas+h*sglh0z .9 r( yybcns 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 massb +*( gsyl yn9c.hrz0h (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 has ifqx vfkhr:f qu47de (z*5i 8 (cfo*ln3nitial angular displacement of 8.0e. It oscillates with a periodn k34ofcq d8x*hvf*7((5re: l ziquff 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 frequency of the u3gqgk+c+7g+ zj o3ncwave is 120 Hz. What is t g+gcc37n++ qj gzuo3khe 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 the wars.hi7(ld zo7 gfu0o7ve is 120 Hz. What is the wave(i fho.sudlr07 zo7g7 length?


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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. The frequek wx9z3nl4*oy ncy of the wave is 120 Hz. What is the walo9yw nk xz34*ve 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 1+(vni;o v g9j;tlnag 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 2 --+s4gm 8uphawou dia 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 frequency of nxs z 0 ;5e)fbxue b:z1r*.pss12 Hz and a wavelength of 3.0 m)*:rbx;. 5np 0ufebs1zxszes?

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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 wavelencac59r:f ni/ogth of 3.0 m and a frequency of r9oacf5c: /ni12 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 m wave traj8ga;:(xqc0rbakh8 a veling 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 tensionj/0tlf vs; u2i. d.qum of 1350 N. Wvf .lmu0 qjts.id;u/2hat 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 unji7.*cz. -udyr1yqedv2eq a( der a tension of 180 N. What is the velocity of propagation of transversj.vr71u izydye.qq-* cad2e(e waves along the string?

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92#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A wave whose wavelength is 0.5448.apki; d e9 pd*u2srqfebe*pw p d;00 m is traveling down a 500 m long wire whose total mass ; eb*4;idpw2 9dp *u84rfee kqasd.pp 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 t y9wo+ a*pvoj1-zw 2atransverse wave on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a resonant fropoaw -vj9yzta*w+2 1 equency 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 50x;u)ljb z jk vu zk w):+qid4:5fcw3nux2a0;k 0 Hz, which one of the following freqk0uxu z :zbv q)k4+ji 5xwn f;j)2da;3wuc:kluencies can 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 yom3fh5nm4 k.four equal segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wave with fik . mfnm5ohy43ve 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 owni,v v6eeuc*j8) /e)o/sg jpmr(k8if 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the sta/j 68 e,rsniep ) *ikv)jvweo/cg(8umnding 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 d (*exo umohj7d wc q939st-f6is under a tension of 20 N. What should its length be if its fundamental resonance frm*oeq x-99cswdjdu7h(ot 6 f3equency 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.sptj b gvb9c *ehi40+:00 g/m and length 0.600 m whetseivj+ 940 :gbhc*p bn 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 string vij6sb(5 co r8atzc6,b ibrates at a frequency of 85 Hz, a standing wave with five loops is fibba6zj8( 6 ocrc5s t,ormed.
(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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