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习题练习:Physics Unit11: Vibrations and Waves



 作者: admin发布日期: 2022-08-06 21:32   总分: 99分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月06日 21:32  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The time for one cycle of a periodic process y 9/i )u*zji,yhxtn4 sis 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 ism :5nyqvk7b8 e n)+1o1fuqcvz 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 a g:, k z)/fxafi swu9ssv99,zfrom the equilibrium point is callediu99zfa fz :vgs ,)s/xak s,9w 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 its maximum disu .-qf stb o+z35pajer+3 ab/lplacement from equilibrium,url az-ef /oatsb5q.j +3+b p3 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. a-;b1nu a jn7x6gt2k b When the mass passes through the equilibrium position, bx7n-nb2 uk a1gaj 6;tits instantaneous velocity

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. When the mass is at maximum displacement from )stos/cnn7x :k iv17 (py0epx equilibrium, its instan(p v0cssy1xxt ik7 /o :pnne7)taneous 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 boaqk yvoc1q e5j+2 k+9e.sd wp,xj *6mrbs up and down between points A and B. Where is the mass located when its d 5ep +q6rj q yoekwkx+vc2.*1jm,s9 akinetic 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 vero3g3lx5m(rgz as6q - ztical spring and bobs up and down between points A and B. Where is the mass locsam3zrgo-q 5 ( 3xgzl6ated 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 ; a wo/0hupbectl6g d0qh)p5*vertical spring and bobs up and down between points A and B. Where is the mass located when its que b5d wh60ca;tl)p0o/g *phpotential 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 poinyr (6lt/w e:ue3ij0 zr9 qg/+p m.wknuts A anznm+ k(eue .qi/ww/:ju r gl 0rt9yp63d 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 vibrating mass-and-spring bju6fa q (me-0system produces what effect on the system's mechanical ene6ebq m ju0-fa(rgy?

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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 syst+8h: on4x2b tc/tkq vh e..mbqem produces what effect on the system's mechanical ene./e4bnhxt 2tok+ vcm qh b.8q:rgy?

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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- ,6jfu qfy0lnao 5)e-cand-spring system produces what effect on uf 0e5q j)fca-,yo l6nthe 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, both oju5v9v 7 wijhvn.o ,m2pp5 5mgn Earth and on the Moon. Where is the period the great9n5j.w,o7 2hu p5p5m mgjviv vest?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the springc1+jclb; e45 e 1npk x+:c)fcvcax1gn constant k of a mass-and-spring system causes what kind of change in the res )e:+j; 1xacgk1ec cc 5f14+lbcnn xvponant 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 ((k2n/ qaygdot0 e;thcauses what kind of change in the resonant frequency t;0tgnd(2 oea( yhk/qof the system? (Assume no change in the system's spring constant k.)

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the amplitude ofs2q* yen4xf (o a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no other ch ey2n4* (soxfqanges 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 whmf:m *9sff/b eightless string of length bfs/ *h9:fmmf L. For this system, when undergoing small oscillations

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the mass of a simple pendulum is tripled, the time requisn(nkq r,h3eb0y* 0n u* l+vjored for one complete vibratio3n0 (*knenrqsuby j*v lh o,+0n

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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 ,7hrs2 iqn5yohr 8 :e:tij 94sm+azryA is T. Pendulum A is twice as heavy as pendulum B. What is the p :r48 amnhrsz5tyq,his9 r27ejoy+: ieriod 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 comple(e ud+sr,1 stl+d,dvw a(kj6ote vibration 1,+6(ow et,dkdau+lsj ds (rvincreases 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 il o;1-;yiff hrts length and mass are increasf o1 ;l;-ryhifed?

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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 thru21 m n1vn86(io shrae frequency of simple pendulum B. Which statement is correc8(1 urr2a s h1vmno6int?

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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 ay z .e10yt iv,tt23ynup,+ul wcceleration of gravity is less than on Earth, the resonant frequency of the pendulum p,zyl wy vtu tni2yu13t,e.+0 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 reprzojvhux .) bi8 p36s*qesents


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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 represem x39tyltx +f+nts


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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 represedyr(l6l5nvtc o /(32 rb.pxmknts


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 5a w3,x 2hkqt:0pqwqu 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 equilibrium i5+oow k 8mvkdeh iw.7p5o4mf7 s called 8mdf e ok ww45kh5vi7mo7o+p.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 lp ylam g5u5t6wi)g 5y6mc8.vis 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 um j*w-u w3my1mfj.v4l so(x4qnit time is called the wave'ss u3jl 4.mq-(wyj mwf m*ov14x

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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 t65 l.ums ix)bkhe 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 distance1oz4y b iqyte 4rph*6cf +u.hpu 18d ml(a8s+o between successive crests if the speed remh *pz.hi4s d8t eoyobua4lr 8+m qf1 (6pu+cy1ains 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 , e)gbhv0 b6dshq 0z)bfrequency f. A second wave on the same string has wavelength 2l and travels with the same velocity. What is the frequency of the seconhdb,60q0e bg)) sbvh zd 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 vam q)1h2hzv 9a string of length L, mass M, and tension T. A standing wave is set up. Which of the following ishh mvqa91v)z2 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 hg tgal7 i+)6q:7nlsq speed of a wave in the string is v. What will be the speed of a wave in the string +)it7 7q:lg6sgq a hlnif 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 d p)+7cqf7g kcthe string is v. What will be the speed of a wave in the string if qc+gfc7d7pk) 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 unkukxbb(iy0 e,) g/t 8hder 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 tension is increas)iebukb0xh( /,k 8tg yed 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. As6 aklv(3p.mky 1e asf* an S wave travels through the Earth, the relative motion kka*m(63 aylvf1p. sebetween 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 q-foe-9o 7at :izuoq2a P wave travels through the Earth, f:o7oa -qioqu 2-9tzethe relative 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 wave4ob ranvaysd+yl3,4e6z ,+s t 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 reac.5svj7g3ykwj s (mv 1vhes a discontinuity where the rope becomes thicker and heavier. What is the orientation of thv3smj1y75 vk gsjv.( we 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 positi4 y88c-tx (g xwh(tgs2t6vug)m 4ewrive amplitudes pass each other on a string, one is traveling toward the r6g(4r-gx e8) wh2gitwx mts48t yv(ucight 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 traveling;fzs)jtm lw;n 7l9y5ecs5ot, 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 sam7 lczn ;9t;mle5t)j ,5 owsfyse 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.(kjpwpzph j9.11hzm 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 string, the fundamental frequency 3 )t6 tlya:4gtc6 czirof that string will in)y 4tl6ct zri: 36gcatcrease by a factor of

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the spring constant of a spring that stretches 2.00 cm when dt5t pk763h ufq / r6ofl7x+lda mass of 0.600 kg is suspended from itrhx77q dk3 ltl6utf/fdp+65 o?

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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 horizontalc+:+xryx 9 moq0pq .mr, 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 equilirx. x+q :c0p+mormy9 qbrium 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 st3rs 79 (-e xw0bxlcmapring constant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N ox-cl brex s9m0a3wt7 (n 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 sprineb3*bigc1t5 f g 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. 3b* fibg5c1e t 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 goesaj:fy( zs+ z n8fwdqp.8n82nz through 10 complete oscillations in 5.0 s. What is the period.qz+ynfznd w8(sz 8 n 8pj:f2a?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth from the free end of an ideal sx s6uxsmd ,v( 0eja86xpring of spring constant 20 N/m with anavjmedxxx(8ss, 0 66 u amplitude of 0.30 m. What is the kinetic 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 spring of sp. kfq9prjzg0h9(k ,qm o5*imrring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. What isf ij*gkq9zmm 5q(.rp,k9h0r o 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 energy y-ko0ozd3 5j( uoqla/is 8.0 J at this time. The mass is cut in half, and the sysyo3/ a5jol0z-ku d(qo tem 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 s,o6tcd(9w .sq5fc(vjv2 p 3i0cbh p bof spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. What is the amplitude of vih qi(, . pjb0c6ds2v3cs fwtbv9( po5cbration?

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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 a8roky0vq 0q;f long a horizontal, 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 and y08qrqv 0;f kothe 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 spr+:kh.f c tqum 65brli,ing of spring constant 50 N/m and set into simple harmokc ru.+h:it5,l6 qfm bnic 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 spg:xay bv,5;pwtjgt pe+qtt3 0pol8 ) 3ring of spring constant 53b x +t3)jtapw0y:oe5 tqp8l;p t,gvg0 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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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forthp79 v/exxrjwe7jao,; from 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 vibratingw;jexvj7,a r o e9/7xp 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 fromo5:ca*bquj9q its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been displaced only 5.0 cm aob: quca*j95q nd 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.o.jt go -gbb4 gs8i,l)sex08c The object is displig, lb s-.)ct xggob8s04eoj8aced 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 wuv-wxruc. 4g39a ,kkz ( kcc8spring of spring constant 10 N/m. The object is displaced4wuc xg89k (zr,cw-.kuva 3c k 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, displax 8bdip/+. misced slightly from its equilibrium position, 8 i/d.pbisxm+ 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 of 1.27 Hz whs4k+t1szdt-j en displaced a distance of 2.0 cm from equilibrium and released. What is the d 1s4ttszjk-+ 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 diff(bevkr.208mg+ 7 qf:c 3wwv m-xoylcaerent springs. Mass A vibrates with amplitude of 8.0 cm at a frequen.ql2 v :awx-o3mf7cg0kr m+w(yb8c vecy of 10 Hz and mass B vibrates 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 sprj8ze3z5( tul ym q os0k,eb9g0ing. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released f3s jko0e5t8l9ueq(gbzz 0 ,myrom 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 k7rd8w-mqfjt/by pg o98+ mi )stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the to9j+tifw q)op/8- ymdmbgr8k 7tal 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 suspdlf-il5tn a 3vdekb*4-od9 l/ended on a spring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance o*-lkd - bdde9nat 4v/oilf35lf 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 position versus x f/1ae r7)iy p-aw3brtime equxa br 13py7w rf-a)e/iation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 eq3 4osunnwk2 i8uation:8 in3usokw4n2
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 jj3.c3-oinsb d +ksd9 qhot61position versus time equatibjc. oj 3 3hodts 9+nd-ki6s1qon:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 spykxt7moc9jp 4g vjq ,0t8 rr (/)kupf/ring executes simple harmonic motion according (ftt9,/8u gp0 kmq 4 j coyk7v)rrpx/jto 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 springxqe1lm/v ks4 )2pmqu / with a force constant of 20.0 N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 cm. (That is, the spring is stretched by 10.00 cm.l2x)se1 pm vk4//qum q)
(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 compu,dum3oz 5 2bha3x6 u kzjgh-.lete swings in 8.0 s. (a) What are its frequency and period on Eartduahhg m2z k ,uzuo36j.3x- b5h?

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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. What is its periom5g ;twz 4:,hgszs7d;bmq- qad 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 itym1 lcgo*u7:m s 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 clw/uv(9 ,9-vnjge imr aock is 1.0 m long. What is its period on the Eartaeu9g ji,n( 9w-mrv/v 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 grandfather clock is 1.0 m long. 7kf-;xl3.z/w n mlxo9k+xzl 8 u:v aot What is its period on the Moon where the ano3 w 7ulxzt vk:o l9/afm kx+x;-.lz8cceleration 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 massle:i-w/w( m g2s:fht)quvmxoso (z-sh. ss str-vz h:q u.i2tm ws(s xho():-/ wsofgming. When the mass is displaced slightly from its equilibrium position and released, the pendulum swings back and forth with a frequency of 2.0 Hz. What frequency would have resulted if a 0.50-kg mass (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 initig*vi hz :)f)plal angular displacement of 8.0e. It oscillates with a period*)vhf)l :zpi g 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.np037hqw ,zlf p3i(gh-dou g 3 The frequency of the wave is 120 Hz. What iopl7i3dg-z3u3q(ghw p f n, 0hs the amplitude?


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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. The frequency of the wa4n 08 ,/w2wirptsw u2mlx2t+ ia.ee pmve is 120 Hz. What is the wavelengthi2t pue.mea ww 2r n+swi /m8,p2tx04l?


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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*+s93x en-j zp1puiaz5vdscc;3 hn y5 wave at a given time. The frequency of the wave is 120 Hz. What is th 95c d5j+hxyz zp1pe;svun-c si*a3n3e 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 h3 vs9k/+g)vzpf r bi96.00 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 waveub,owcx 0ta+/(-p 7jj, qlx5m kim 5mp with a frequency of 1500 Hz?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wave speed if a wave has a frequency of 12 Hz and a ;q/rg08 s7aib d, :)wr2iwu nxkuvtk,uyz 08h wavelength of 3.0 mh u0w8ab,sd:i8ryuw 2/n ) 70q,k;ui gxzvrtk?

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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 wavwa3vpc a ;,iqh(y5-j velength of 3.0 m and a frequency of 1wjpvq 3v5a(,ich -ay ;2 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 7ilwi nbd+3i: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 under a+larwgb37 opj0vk3/ a tension of 1350 N. What is the waverkbgpa l+ /3o 7vj30aw 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 gig - h,4;b5( xkjqmqia/m is under a tension of 180 N. What is the velo4kqi, hagjq- i(m5xb ;city of propagation 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 ia1wevdu qh2s3*t 9 l(poz6d :lk4f( yxs 0.500 m is traveling down a 500 m long wire whose total mass*elap:wkh2o1 l9 fz v(qt64(3 suydxd 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 on a 2.0-m long string fixewlpjhg(1 58y wd at both ends is 200 m/s. Which one of the following is not a resonant fregwj(hy5 p wl18quency 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 t7cdbat:0. aad he following frequencies can set the string into reson7ab:dcat d.0aant 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 , rgrie tag7lysvl881:n x;l/ observed to have four equal segments in a standing wave driven at a frequency of 480 Hz. What driviil8l g8x;1:en 7ysvt/gar , rlng 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,4 .a 5ec2v 3m r)fr(d8balnr pin0td;d vibrates at a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the 8en4vti .20m3d)nfddc plab;(rr5r astanding 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. What should its zrww3l lh6b+rd*; 4 jplength be r;+rl4pd6w3l bhwz *jif its fundamental resonance 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 har8lzuja,np/ a)rk:wamlx i6: s62x dxl9t+4cvmonics of a string of linear mass density 2.00 g/m and length 0.600 m when it is subjected to tensius +rtliwx4 z:c6, al a:)m/lx9j8a vkpndx26on 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 bh) zfr n0pgr0t ;.o6mfoth ends. When the string vibrates at a frequency of 85 Hz, a standing wave with frt6ong0;) .fpr fzhm0ive 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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