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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 processw(g qwsg .+0..urd vcb 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 numberge1 h5e.smdj* of cycles 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 doiys,a:lqd d ut.857 visplacement from the equilibrium point is called the.usl5o7y8idvt, adq:

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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 maximupn+.j izd l 3z /h(x+fill5sd7.+xworm displacement from equilibrium, its instantaneous veljn+ fixl zpdl+73l5o./. id rh(+swxz ocity

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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 passp h;/gq9ab dbnee 0o73sy 3;bl6cg rd2es through the equilibrium position, its instantaneous veg2;pyg b3 ba67/behr3e9dncqlo; d 0slocity

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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 ftx.+hiny */vpic0z9uz5 b th 4rom equilibritit+9pnhz/bz0* .i 5xhu ycv4um, 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 verticav 7ztv;2v1xgn l spring and bobs up and down between points A and B. Where is the mass located when its kinetic ene;72vz1 ntv xgvrgy 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 down between points A(+ k yh*rn4 puz*d3ecg and B. Where is gkzy3c+ pnude4r(h** the 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 bobs up aqz )pze, vnxd7w( v;4rcc m(h:g3 osr8nd down between points A and B. Where is s3; x7dqm84,cnwve co)hgz((zrvr p :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 between points A aw0 px+ 7ij6j*tbl5 uwxnd B. Where is the mass located when its pot +juw 0w6lxxj*57tbip ential 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-spriof7tl+ 2ugq+5 mf6phing system produces what effect on lh p6fg2mut oi5+fq+7 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 vibrating mass-and-spring system produces what efmtb ggz a(xp8pjkk) /vuu2b4m wh) -48fect on the system's mec(j gmvgbh-xm 2 )kpw8bup8t ak/z4 )4uhanical 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 spri cs ,wc(k.m *8gf a9dpdn2p/urng constant of a vibrating mass-and-spring system produces what effecru*/ dap m.2pfc89,n wsd kg(ct on the system'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, bote9g;jde + qw r,(bgue1h on Earth and on the Moon. Where g;ew ,1e(q e+u 9rdgjbis the period the greatest?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the spring cono h:691gmwxnb stant k of a mass-and-spring system causes what kind of change in the resonant frequency of thb1w g9 xmn6:hoe 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 9 25 fczl,e jry92e0iarsd-wn mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no2y50-e 9ld 2arf,js9 zcre win 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-springs/ icu i00y-qg system causes what kind of change in the resona /y-i00cuqig snt frequency of the system? (Assume no other changes in the system.)

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass $m$ hanging on a spring has a natural frequency f. If the mass is increased to $4m$, what is the new natural frequency?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consists of a mass M attached to a weightless string n(0qv6p6i7pa-n ea yeof length L. For this system, when undergoinga-6e pa vn6iye n(pq70 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 triple1dcoz 4un n3swlct,l+m7 2 fm,d, the time required for one complete vibrationcll t,zc 4 27d1omwus+fnm3 ,n

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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 twic g 9wd.j-* noh)hkqp x+w+:vzle as heavy as pendulum B. -)l dz.vhp+xwnjgq9*khow:+ 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 tripled, the time for one 3 9a b/zezewu(k7b4em complete vibration increasezk79wbe ue4/aem (b3z s 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 both itno8w:m6gn z5iyi44n b) .hw)dmsji (ws length and mass are increased?o6wm:4w n8zmyhn d4bi)j sn()w5ii .g

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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 forvp/ 4;yyslx0 ne5:*z rsezw1kth at twice the frequency of simple pendulum B. Which st:ve r;4 *n0 yl 5zp/1eyzwkssxatement 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 th (0d(c3t0g m 7ebabvsde Moon, where the acceleration of gravity is less than on Earth, the resonant freq(vd0gd3sb0e cbt a m7(uency 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 .bjgzw(-haa 2fwor(hcm u( 0dv/4r:u presents


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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. 11-18 12ky0nblujmq6bj i0a y1:z a 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 represents(mike1 6kou*u


本题所包含的其它图片:

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a forced vibration, the amplitude of vibration is found to depend on the+a 5yy lf )8fqrrd fc qr((69hlx/f1g-am,jsz

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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 dip1ipq kpoyf* ls*o5b. q1m3n- splacement of points of the wave from equilibrium is called the wav q1si*3* ppof1pmk bql-yn.o5 e'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 successi fdso(l6)b.sxx03*zhihhb 3f ve 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 time is called the wav1: rtyz :zve f0/fjjl-e'sf f:1yej/0: tzvrl-jz

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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; zds z(wx/ x4z2( jepqwx4t1b times the wavelength is the wave's

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of a wave increases. What happens to the distance between s,dh7q a )v5zisuccessive crests if the spz av7)qhs,i5d eed 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 frequency f. A seco0e4kfi-vbxu kz0-k g 33cd ey8nd wave on the same stry g83xe3vk4k0eb 0z--kiuc f ding has wavelength 2l and travels with the same velocity. What is the frequency of the second wave?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a traveling wave on a string of lengti6 qtchyw 8, : ewlej*fx065vqh L, mass M, and tension T. A standing wave ise 0fi, qlj: 6w5 v6tyexw8q*ch set up. Which of the following is true?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under tension T.k0sf/89 a1ype+lmm *jt ,3r 4ikcfzdn;pt3rz 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 increaszjl*z9 t ;8ekn 3imk0d1spfp4,+/mcf r ryt3aed 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 0ef0dttep+ml+is -6r,j3z o aof a wave in the string is v. What will be the speed of a wt0 r3 e,i0z 6-oesad+jptfm +lave 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 uns.m26npyz79 qwom v-uder tension T. The speed of a wave in the string is v. What will be the speed op69wmu-s7 2qo z.mvny f 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 trans-f(oryq* v/kiverse wave. As an S wave travels through the Earth, the relative motionk rf/ o-yi(*vq 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 longitudinal wave. As a P wavek.il;p f-df*t mg zb56 travels through the Earth, the relative motion between the P wave*fmtl6dk5zp;f. gi b- 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 ist ,;cqb2yvx pu/ oc2 f+:h)igr

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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 ag*:j cyrvim w. +ceq47f8v2dj long a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is vr+ 7.cwyi4e f28cv dj jmgq:*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 striy1 cflef( v 5v-exl89eng, one is traveling toward the right and the other toward the left. At the point that they occupy the same region of spafl(e5ee-cvyx1 8 f9vlce 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 traveling towa,hkfvgo*(k d6 ala4zeh ; ys6d0+jjq9 rd 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 occq4l;9e hhkf,z*jd(ky a60 sgov ja +6dupy 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 strdfe;d90mtrfl4y7 n,u i5l q5ying 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 trbdtao- wk 95u;4jy hbof09f* ension in a violin string, the fundamental frequency of that string ruwb5j 9o d9fhyt40k;fab-o*will 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 wd)uz7- 8bjzoe hen a mass of 0.600 kg is suspen-7zzbjeoud 8) ded 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+-rna*rl qcuh/0jgfprf4 q 2* a horizontal, frictionless surface. The spring is initially stretched by a 2*c+ fp fgh4-ua j*r 0nql/rqrforce 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 cxh7u )grgfy 61onstant 60 N/m along a horizontal, frictionless surface.76yrg ux1)gfh 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 constant 60 N/m along a horizontal, uk1d)2 xr0mj w/mco5wfrictionless 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 imx 1o)cur5/jw 20k wmdts 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 compleg4-iy:mi/gigw :ed 0-g*oiahte oscillations in 5.0 e:a/- dgi0gmy iohw* -g 4:giis. 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 frou9wmvbd2 bep5zm6 l10m the free end of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of this vibrating mab60vm z 5u92bpmdlew1 ss 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 spring of spring constant 20 N/m along9lw -jmbl.8lnrne/o8 a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibriumnb8je .l -8mln l/rw9o 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 h- jvt ) 0d6;)+hwez-h ztp-/jifzko6qp xm-o of 4 cm. The energy is 8.0 J at this time. The mass is cut in half, a-/6j)z tq)t-kp+oz-i-ozxfpw0; dh eh6mhv jnd 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 attached00iu e kna5k: 6pi8bnl to a spring of spring constant 20 N/m along a horizontal, frictionless surface. 8:5bun6pl 0ka ke iin0The object oscillates 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/w3lfpx nzw.3 /+ -xutedgr 0r4m along a horizontal, frictionless surf dl.+grp wxw u4z3/3-f0tner xace. 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 and the potential energy the same?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached to the end of a horizontal spring of spri qr-,nsu21z9o2l vhfn ng constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanicazfl -qnrhv1u2o n, 92sl 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 horizontf/jlk4 s9 x.z:, a/rpwhh(hf hal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitudkh.j/hx:swp9h frh4 lzaf,/( e 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 frei edg3g 7p+ y/:e(xmll-lx3/ 8;hidpvz)c dnte end of an ideal spring of spring constant 20.0 N//3ilpgeh x3(l/ydml)zpi+e8v- xtg 7; cdn d: 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-anvf:j 5/t-mtu+*i5lqlo9s c h jd-spring system is displaced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been di hqutolsi9fvmc5:*/ l-j + t5jsplaced 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. The ob v*uq)kucm /8jject is di8 /ukcu* jmvq)splaced 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 spring constant 10 N/m. The objectfmfb3 45rpqb inti2 78 is displac 5b3 7qri8fmi2b nptf4ed 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 fromqez 9z((sl9:rvfs;wf a spring of spring constant 18 N/m, displaced slightly from its equilibrium position, and rel9qvf9;zrz:ess ( lw(feased. 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 jnwo/9p5 ;wuf of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum velocity attained w9/5;pj fwuno 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, arefqax2xw 813zf+ec9s 8rocum - 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 5.0 cm at a frequency of 16 Hz. How does the maqsowff9 2 cu8 z-8rxea 3+x1mcximum 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 equ/y 6ok5splo:milibrium the mass stretches the spring 2.0 cm downward. The mass is thop sk56oy/lm: en 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 thdeu * b1i-+pepe spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down pd+iue*pe -1b 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 the mass stretchej/ hs do.txb:p/l m7j)s the spring 2.0 cm downward. The mass is then pulled an addi7 /jmdtslo. / xbhp):jtional distance of 1.0 cm down and released from rest. Write down its equation of motion.

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motion obeys the following positi/b();j nsenyjon versus time equatiej nj/)(ny ;bson:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 pzo; )a:rax 7zd4 6mdeposition versus time equatiox: adm)ae; pdo6zz4 7rn:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 posixigqw74jkl yes 8f*/( tion versus time equatigl(eqs/xji 7yf*w8 4 kon:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 3)1cf)kio0jg b ;vidw simple harmonic motion accordi)ivf g3d 0k)wci1;ojbng 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 attached to spring with a force constant of 20.0a:xsxpwzts3 )buza,f/52 h2 n N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 c5a 3axb/n:2swzfzu),p2 tsxh m. (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 6k eefo()giwfios -1 ;ujc6; ms. (a) What are its frequency and period on Earthie;ofek g )1uw;6jc(m6-fsio ?

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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 lx 6h 6rjx++gpnong. 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.: 9yg hdouuc.l5:t+mc9b i w9r 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 peri3tue5 msp8*y 0 djy )lsgxox,gye1r+7od on the Earth xxyojrgp,l7*+01suy)8my 3s 5gdeet ?

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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.xk889ukvv457svpz5 jh u /t9yd(jtc g What is its period on the Moon where the acc5vusxkt 7 jku yh/8zj9cpv t 4dvg5(89eleration 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 spherirowgj x+ltgk.z, pms7 ;i950k cal mass attached to a massless string. When the mass is displaced slightly from its equilibrium position and releasew gkr9 g 7k,lox+zmp .tsi;0j5d, 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 20-g mass has iniq5fivwp.-n. 3ymsh00a * mu fpxyk7r)tial angular displacement of 8.0e. f* rw fvm07)spi3m-n up0h.ayq x.yk5 It oscillates with a period of 3.00 s.
(a) Determine the length of the pendulum.
(b) Does the period of the pendulum depend on the initial angular displacement?
(c) Does the period of the pendulum depend on the mass of the pendulum?
(d) Does the period of the pendulum depend on the length of the pendulum?
(e) Does the period of the pendulum depend on the acceleration due to gravity?
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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. T5e9a*a, uim0apxn q+ bhe frequency of the wave is 120 Hz. What is the amplit+ xnumiapqa 9e5* ,ba0ude?


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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 gi6qqhuvf7e3s; ab dckcp8w fn, *o.x/8 ven time. The frequency of the wave is 120 Hz. *w. c /sq3cupqd8,7;8f6fkn h eax vobWhat is the wavelength?


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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wt-d,n+clea9h+ s5qxwge 1u5j f +x*rq ave at a given time. The frequency of the wave is 120 Hz. Wht5fhw5l jxra-q xqe91g e+*+s +udc, nat 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 period of 6.00 wa(zjqa)g / icn90ao7ms?

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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 1500y(srct-gcw5blc( ( k. 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 12 Hz and a 5qwzs e4:3gtbwavelength of 3.z:wqt453b s ge0 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 and a frequebixj+9 -j6auu q od-g0ncy of 12 i60-axu j+uob j9qd-g 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 t c7)bcu*fg.c cw7rrk7 raveling 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 tis gnc7tq/fi ck3j/v:lia6 : )ension of 1350 N. ) k7:qatcvcij6i ign:/f/l3s What 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 iy*l5 e* gk un)5s3x*gkdrq2q es under a tension of 180 N. What is the velocity of propagation of transvgqeqyx* ln 52s* kue*k)g3r 5derse 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 0.50p/ vb bmlboy*3t fb;eoa1 h)630 m is traveling down a 500 m long wire whose total masyv ae)hpb /3mfbl6o*t; 1b3 obs 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 transverse wave o p;txx q8y)hmbj2k v8cv;nl p5beu*3 2n a 2.0-m long string fixed at both ends is 200 m/s. Which one of thbqe5b3* yp cxp2hv) v82jtmx8;n kl;u e 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 frequn8:smhvi+ k ;nency of 500 Hz, which one of the following frequencies can set the stn+:h; 8miskn vring 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 four equal segments in a standwy 8n-6h. hfxding wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wavy-df8xh6. hnw e 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 egm9v97ia0q2-qlbe gtcim6t8lp+4l 12 Hz with a standing trantil ie4gmg8 cl-+2 vp60lq9 te9bamq7sverse wave pattern containing 3 loops. What frequency is needed if the standing wave pattern is to contain 4 loops?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of linear density 1.5 g/m is under a tension of 20 N. Wha -fefb ))rnk2ct should its length be if its fundamental resonance frequency is 220 Hze n2fbk- fr))c?

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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 densityur bvrp;l125e 2.00 g/m and length 0.600 m when it is sur2vrl1pb 5e u;bjected 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 fixes.dp5l cxxx 8v16* .jxfy+j dnd at both ends. When the string vibrates at a frequency of 85 Hz, a standing wave with fix.x*d6+x .1pdn cxjy5 fvjs8lve 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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