51fly国际课程 (51fly.win)

 找回密码
 立即注册

手机扫一扫,访问本页面

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


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

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The time for one cycle of fpbu1/jo/fopk+ i5xjw tj* 1r )*xz/y a periodic process is called the

参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a periodic process, t +il)r* *ejh, wst:.gpgdxvjq6+svc 6he number of cycles per unit time is called the

参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For vibrational motion, the maximum4 .e5 yyzjpep6 displacement from the equilibrium point is called thpzjp45e6yey .e

参考答案:    

标记此题
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 itsrqu.f wdh 0-xi6 b5y)p maximum displacement from equilibrium, its instantaneow yd-h0u. x 56rqpb)ifus velocity

参考答案:    

标记此题
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 passes throb uf20 q)vyyz)rs8i3 pugh the equilibrium position, its instantan8 iy zy)p2r)qu0bfv3seous velocity

参考答案:    

标记此题
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 i73 ruxo (u,p)ih t3fpfrom equilibrium, its instantaneous acceir7txu,fop3h u 3 i(p)leration

参考答案:    

标记此题
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 bobsx wj0w( ,z4zl:gar y2e up and down between points A and B. Where ,wlawr z2j:z (e4x gy0is the mass located when its kinetic energy is a minimum?

参考答案:    

标记此题
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 xdn:y1k3i,y npoints A and B. Where is the mass xkni1yn3 d,:ylocated when its kinetic energy is a maximum?

参考答案:    

标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and down betknc20jmf/qk y)8m *lqween points A and B.q k/nkq82mlcm0 *jfy) Where is the mass located when its potential energy is a minimum?

参考答案:    

标记此题
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 pointm:h78 j ibm hdh(p8pmri0 ;0h nyq;bo;s A and B. Where is the mass located when its potential ener;0:n8 rhmi 0(8 bqd ;mh7hhoibpymj;pgy is a maximum?

参考答案:    

标记此题
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-andni z9 lz61 y calbazj:(m:l7d4-spring system produces what el1n:i zaa96b74m jly (zdcz:lffect on the system's mechanical energy?

参考答案:    

标记此题
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 syst3:qq , re1kjmqem produces what effec :qjrmk3,1eqqt on the system's mechanical energy?

参考答案:    

标记此题
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-and-spring system produceswqjt ma)2ihs, et9jt87h n3i* whkwauus1 +4- what effect on the system's mechani m w4t qs+ tju7e3j,i sh1*uh-)ta8na2 9khwiwcal energy?

参考答案:    

标记此题
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 Mdv:b yrik +j sx52w7o4a ,jsu;oon. Where is th u2d j4rb7 viojsw:y,ax+k;5 se period the greatest?

参考答案:    

标记此题
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 sysq yc51ktf c9qky3i, 4i0sft 5t*) uozbtem causes what kind of chc5tckbtu5t fyi*90 z4q )kfoy3q,s1i ange in the resonant frequency of the system? (Assume no change in the system's mass m.)

参考答案:    

标记此题
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-spr14pm.fe cm6u ning system causes what kind of change in the resonant frequency of the system? ( . u1cpn6mmf4eAssume no change in the system's spring constant k.)

参考答案:    

标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the amplitudeagp 7 rwnf0h:;c2ao3j of a mass-and-spring system causes what kind of change in the resonant frequency of the sysagrf0 h3awc7p2nj ;o:tem? (Assume no other changes in the system.)

参考答案:    

标记此题
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?

参考答案:    

标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum conszbgrn0 g*yg*+ (b-l87 ;alx c vfjbp8tists of a mass M attached to a weightless string of length L. For t pl8 gxyrc0fbz** n;+vb(lja8t g-7gbhis system, when undergoing small oscillations

参考答案:    

标记此题
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 rz+ifu233pk+pnjm- c uxniz8209wwv xequired for one complete vibr8wn2+z 2 vfp-uuk icw9+in 3xm0zxjp3ation

参考答案:    

标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Both pendulum A and g+a2hm50 1w)o ruzyniB are 3.0 m long. The period of A is T. Pendulum A is twice as heavy as pendulum B. What is the period of hna1g u0y 5r )+iozw2mB?

参考答案:    

标记此题
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 coevbfq2 gz.k0s2iy*-f mplete vibration incr2ie v ysfzf* g-0b2q.keases by a factor of

参考答案:    

标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to a simple pendebm49um ugya fr n)+/8m.n 7twulum's frequency if both its length and mass are increas gnr/bmy7 t)8e49 umafwu+m.n ed?

参考答案:    

标记此题
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 t(p ,sivxdq.(d4cqo t*he frequency of simple pendulum B. sdpx.(di o4q tcvq,*( Which statement is correct?

参考答案:    

标记此题
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 ae;y nmr7.ixw9 j5 3ogrcceleration of gravity is less than on Earth, the resonant frequenri.n; j3m 9x7egow y5rcy of the pendulum will

参考答案:    

标记此题
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve A in Fig. 11-1 reprm 8m: ls3*rrksesents


参考答案:    

标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve B in Fig. 11-1 represeq ; 8xw+/hf4yj bakr4snts


本题所包含的其它图片:

参考答案:    

标记此题
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve C in Fig. 11-1 representsy+.y4dsy :fa x


本题所包含的其它图片:

参考答案:    

标记此题
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 dependyl56 twg)-a cagt4r,v on the

参考答案:    

标记此题
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 irbp khi9er/ x0yw5ue.6m*c9 is called th99ypr0 cx ek*heim 5ibur6w/. e wave's

参考答案:    

标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The distance between successi0sxkl vcq :2abp,2,tl ve crests on a wave is called the wave's

参考答案:    

标记此题
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 2f)wf3cd yxyf18 ls;kis called the wave'swy sc1;x2y3 k 8l)fffd

参考答案:    

标记此题
33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a wave, the frequency timez2 2y f f6q* jd.o*emmf,uay51ghczg, s the wavelength is the wave's

参考答案:    

标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of a wx4w8byq7 2ckoave increases. What happens to the distance between successive cre xbyk827oq4wc sts if the speed remains constant?

参考答案:    

标记此题
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. A9c km xtivu:3o ;o) quwx82-;3wwbmjq; ejpy5 second wave on the same string has wavelength 2l and travels with the same velocitujty moxpmv q:98;-3qww k3 2wu)je;;cxb i5oy. What is the frequency of the second wave?

参考答案:    

标记此题
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a traveling wave on a string o f:zj-qc8p2sj f length L, mass M, and tension T. A standing wave is set up. Which of thpq-z8jf j2c:se following is true?

参考答案:    

标记此题
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length0hyf*m z /fqp4 L is under tension T. The speed of a wave in the string is v. What will be the speed omqzph yf04 */ff a wave in the string if the mass of the string is increased to 2m, with no change in length?

参考答案:    

标记此题
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 als e;ybr6ddpcl0uty0al* ;2 04nvu* wave in the string is v. What will be the speed of a wave in the string if the length is increased to 2L, with epuv2 * ;d n6t04*au0ylll ya0r;b sdcno change in mass?

参考答案:    

标记此题
39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and leng b2 moy9vu7bb:th L is under tension T. The speed of a wave in the string is v. What will be the speedy2b9b:m7oub v of a wave in the string if the tension is increased to 2T?

参考答案:    

标记此题
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In seismology, the S wave is 26 9m.,;x l kbdv+)3dmdu iaqmdje2vva transverse wave. As an S wave travels through the Earth, the relative motion between the S wave and the 2km;uv , dd)+qxbi3.dj2ma6m v9lv edparticles is

参考答案:    

标记此题
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 wave travels xdfoay7jr(6 4d3 do1(ge b1qcthrough the Earth, the relative motion between the P 1jdborqa 4ec6do (f 73g1ydx( wave and the particles is

参考答案:    

标记此题
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity of a wavedn8cq 1ek jwg3d0 7gfl0ht4r( is

参考答案:    

标记此题
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 discontinui, 0k +ay vwm36r8ecwxkty where the rope becomyc6 wrkx83 ea+v,k0m wes thicker and heavier. What is the orientation of the reflected and transmitted pulses?

参考答案:    

标记此题
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 stri0w8a7 qlcs), o rqx8jq; ;gvbang, one is traveling toward the right and the other toward the left. At the point that they occupy th 8gbqw;s7;qvcq ,ao ) x8arlj0e same region of space at the same time

参考答案:    

标记此题
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 toward the 2/ ay2p 6 acb6m(h(cuheomov-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 ocp6(eh/(moocvca ym 6-bau2h2cupy the same region of space at the same time

参考答案:    

标记此题
46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Resonance in a syste) x ) qma01jl4cv a4o7fn2ionem, such as a string fixed at both ends, occurs when

参考答案:    

标记此题
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 fund9orry0 efn l2,+bma ;pamental frequency of that st2 efap +nrm9b; lr,oy0ring will increase by a factor of

参考答案:    

标记此题
48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the spring constant of a a0 .) hwp1 js2-fzdwk;vv ayd,spring that stretches 2.00 cm when a mass of 0.600 kgw k12j;p0-adwv h ,fy) z.savd is suspended from it?

参考答案:    

标记此题
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 conq b vf 1moqi +3m9l88/aj*aokmstant 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 mbvq 1afm+ lo 8mj9kq/ imo*a83ass 0.50 s to go back to its equilibrium position when it is oscillating. What is the amplitude?

参考答案:    

标记此题
50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a op ls5j6g3gr6spring of spring constant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes tggl j3o6 65rpshe mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the period of oscillation?

参考答案:    

标记此题
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 sprig, (no 2rn9sumu l7ntva7c1xtnd /a;2ng constant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s tolvcma( ng9ua o2ustdx,/nnn7r 2 ;7t1 go back to its equilibrium position when it is oscillating. What is the frequency of oscillation?

参考答案:    

标记此题
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 4bj: ov0l3dz jthrough 10 complete oscillations in 5.0 s. What is the p:dvb jz40l3ojeriod?

参考答案:    

标记此题
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 sprir it xap7nkb6ky;j y x/66s0o1jy4w*dng of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of this vibrating mass when it 6s b/*wy1adt;ki 4jp jxy xn67k y6o0ris 0.30 m from its equilibrium position?

参考答案:    

标记此题
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 along a h,fw4*kqhwd2 z2 vim+1oaxgc6jo by/8 orizontal, frictionless surface. The objemwg yhfax 6 c81o wv, +2i2*j/okqbzd4ct oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. What is the total energy of the system?

参考答案:    

标记此题
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 cip(3c0:04k spjtigoeq hu4 sd1y6nx.m. The energy is 8.0 J at this time. The mass is cut in half, and the system is again set in motion with amgniqju.p(ep44d ikx0 t130 c:sohy6s plitude 4.0 cm. What is the energy of the system now?

参考答案:    

标记此题
56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attrmq q8*g3,pyyp1jo 7 wached to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a 3 8q*r,jygp 7pyq1womspeed of 1.5 m/s at the equilibrium position. What is the amplitude of vibration?

参考答案:    

标记此题
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 Nyid v1-4q wg3qkw/ w5m/m along a horizontal, frictiokw4dwq3-gwq /m yi5v1nless 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 the potential energy the same?

参考答案:    

标记此题
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 sprinta9gs: u(ydn1ip8 dky hgl-*) g 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?y pk ydsta:- uh)n1g(g9di 8*l

参考答案:    

标记此题
59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached to the end of a horizontal spring o7kyyrmjn5q o7; z*y o+f spring constant 50 N/m and set into simple h7 yony*y5+q7rz j okm;armonic motion with an amplitude of 0.10 m. What is the total mechanical energy of this system?

参考答案:    

标记此题
60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth from the free end of an ideal spring of s 08,yvf-umcrspring constant 20.0 N/m with an amplitude of 0.250 m. What is the maximum kinetic energy of this vifrc8s-vum0 y ,brating mass?

参考答案:    

标记此题
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 dispq/y9hxxs0y 4wlaced 10 cm from its equilibrium position and released. A fre9 4sqhxyw/xy0quency of 4.0 Hz is observed. What frequency would be observed if the mass had been displaced only 5.0 cm and then released?

参考答案:    

标记此题
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 sgg7o ;i j,wob*rsd91wpring constant 10 N/m. The object is d goi*grd 9, ws;7wbjo1isplaced by
5.1 cm from the equilibrium position and let go. What is the period of vibration?

参考答案:    

标记此题
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 10uc4k /vbo+v- h-asfoy)i orxbc22)* nza g4o( N/m. The object is displaced (/ yu-2k4ohcgaaoofnv)ozr4 s*- x+ cv b)2ibby
5.1 cm from the equilibrium position and let go. What is the frequency of vibration?

参考答案:    

标记此题
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 sprinpl9, jzja+y ea7k 8ps-g constant 18 N/m, displaced slightly from its equilibrium position, and released. Wha lsj7 8pe,+azyjk9p- at is the frequency of its vibration?

参考答案:    

标记此题
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 6bfzduk9kec4 r :..rjat a frequency of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum velociz4 ufj9krre.k6:.cbd ty attained by the mass?

参考答案:    

标记此题
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 diffeb 03qk xtms2+wrent springs. Mass A vibrates with ampli 3qw0+tbms kx2tude 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 maximum speed of A compare to the maximum speed of B?

参考答案:    

标记此题
67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended :q;0f,4r maa,gpamdpf2qd 0 con a spring. In equilibrium the mass stretches the spring 2p2 gq d:adm40mrcafa;,p 0fq, .0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the period of oscillation.

参考答案:    

标记此题
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 sprwxeg v4* ,e0dring. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance vg, 4*reexd0w of 1.0 cm down and released from rest. Calculate the total energy of the system.

参考答案:    

标记此题
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 stretchesb7kf /vwmk/a ;/6egu g the spring 2.0 cm/;vwb/gau7 gk6/ m fke downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Write down its equation of motion.

参考答案:    

标记此题
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 fol xg7*j.onwyi6 *0omuxlowing position versus time equatix6nuwog x0i7.m** yo jon:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the amplitude of vibration?

参考答案:    

标记此题
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 timea9 xev3nzj zy/ b*na0- equationa x9n/v ez-jnbay0z*3:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the period of vibration?

参考答案:    

标记此题
72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motion obeys the5 y+a n+hcttjk5:rj4 6c7ijy e following position versus time equaty ejiay +tj+57nch:5 6 cr4tkjion:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the maximum speed of the object?

参考答案:    

标记此题
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 simpleeseyy xq .:38vpk7z5 c harmonic motion according to the equa7:3 .exszeyvq8kyp5c tion $y = 0.50 \; \sin (18\pi \times t)$ where y is in meters and t is seconds. What is the period of vibration?

参考答案:    

标记此题
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 r;b7p: pro wz2constant 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 sp; b2rozp:w7rpring 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.
参考答案:    

标记此题
75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum makes 12 complete swin8nl 6hgbk 2lx)hj ;gx5:0uq nigs in 8.0 s. (a) What are its frequency and period on Eartlqb682n x gij:;xlu)gkn hh0 5h?

参考答案:    

标记此题
76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.00-kg pendulum is 28.8v.7sr9 7cbmp w4 m long. What is its period on Earth?

参考答案:    

标记此题
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 eggv36; ak+0rye ,tpcn,flb *is its length?

参考答案:    

标记此题
78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock isw-lwj bz w, ;mbp;pfr(qt4(g9 1.0 m long. What is its period on the Ea,;-(qjl btbwm(wfzpw4p ; rg9 rth?

参考答案:    

标记此题
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 ta+a3.rp- d, 0a6b7ippeekp o long. What is its period on the Moon where the acceleratiae,tiope6 .k3a7p da pr+0p-bon due to gravity is only $1.7 \; m/s^2$?

参考答案:    

标记此题
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 sphegh,1xy: slfr(rical mass attached to a massless string. When the mass is displaced sliggfy(x1,r l hs:htly 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?

参考答案:    

标记此题
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 initial angular dugk 6 o/ieq cv82s+v+oisplacement of c6o v+ogisv+u/q2ke8 8.0e. 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?
参考答案:    

标记此题
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 wavhlv-*4 1hi13gh;.jvci mb-z qf tsv(de is 120 Hzjv*bh d1vg hz4- - l vc;f.tq1is3imh(. What is the amplitude?


参考答案:    

标记此题
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 waql43:s wyyn;n +ay bc4ve is 120 Hz. What is the wavelenysl :ay;bq nnc+ y34w4gth?


本题所包含的其它图片:

参考答案:    

标记此题
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 ;o3 4dv1io z sino,i tj( *jcn2x2q4voa given time. The frequency of the wave is 120 Hz*v4 no, ic 3doxi1vji(q2 st24o j;zno. What is the wave speed?


本题所包含的其它图片:

参考答案:    

标记此题
85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency u.nj2; z91ej)xkkior of a wave which has a period of 6.00 ms?

参考答案:    

标记此题
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 fre; s,iep1gdnu0quency of 1500 Hz?

参考答案:    

标记此题
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 my1 *, dqo)hsw12 Hz and a wavelength of 3.0, *qw)ymh sod1 m?

参考答案:    

标记此题
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 apa5b2a8 2wmiq wavelength of 3.0 m and a frequency of 12 Hqw2 p8ma2 iba5z?

参考答案:    

标记此题
89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequenc: hbvg.a4f3 sb,a, ttfy of a 2.5 m wave traveling at 1400 m/s?

参考答案:    

标记此题
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 is0 ( mliub((apragu:u . under a tension of 1350 N. Whb:aal riu0 mpg(u(u.( at is the wave speed?

参考答案:    

标记此题
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 180 N. 19bb9mekkk6 j8p5w*gpel t ;bWhat is the velocity of propagation of transverse waves w*m9lk8p9ebpktg k; ej6 1b b5along the string?

参考答案:    

标记此题
92#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A wave whose wavelength is 0.500 m is traveling down a 54 we.(g m0swpe00 m long wire whose total mass wes4 ewp(g. 0mis
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.
参考答案:    

标记此题
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 6ge*lra9, xcb long string fixed at both ends is 200 m/s. Which one of the following is not a resonantc*x,e a 9l6rbg frequency of this string?

参考答案:    

标记此题
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 t xwtr4pfi+-2)won8n nh 1r,2fz8qm( p s4z vzlhe following fp8omzxwf( zw2ns+pn 4rnv,1 84hrlit2q -z)frequencies can set the string into resonant vibration?

参考答案:    

标记此题
95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A stretched string is observe;yv /lh.m h9jz3;1 q ewa82z4s*e1zpp zwfijz d to have four equal segments in a standing wave driven at a frepzw2mhwz1 9y4ls;q/ vfei*3;z8hj.ez zj p1a quency of 480 Hz. What driving frequency will set up a standing wave with five equal segments?

参考答案:    

标记此题
96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string, fixed at both ends, vibrates at a frequency of 12 Hz wxrqxc a) .8+d/b8dju kith a standing transverse wave pattern containing 3 loops. What frequency is needed if the xacu8jd/+8) x b.dkrqstanding wave pattern is to contain 4 loops?

参考答案:    

标记此题
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 tensivklm.zxal 9vwmf sv)(30 3ac:on of 20 N. What should its length be if its fundamental reslvlm ca30 xv.z 3(k)m:fs vaw9onance frequency is 220 Hz?

参考答案:    

标记此题
98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Find the first three ha mw7pkyg( -8uarmonics of a string of linear mass density 2.00 g/m and lengmayw-kg7p(8 u th 0.600 m when it is subjected to tension of 50.0 N.

参考答案:    

标记此题
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 vibrates atl ime4v4m63*k-itybn a frequency of 85 Hz, a standing wave with five ki-l 6nbtm4e*4 y3imvloops 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.
参考答案:    

总分:99分 及格:59.4分 时间:不限时
未答题: 已答题:0 答错题:
当前第 题,此次习题练习共有 99 道题
本平台(https://51fly.win/)支持练习,作业与考试(自动评分)三种模式,群组成绩统计排序导出,题目动态变量实现同卷千人千题
如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

浏览记录|手机版视频|手机版试卷|使用帮助|51fly国际课程 (https://51fly.win)

GMT+8, 2026-5-6 19:19 , Processed in 1.588758 second(s), 228 queries , Redis On.