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 a perinr3s7yml6i up 407lsg odic 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, the number of cyq7k z*)xboav6cles 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 maxi-)zbqd av.51guvsja+gueq53 j6.m kvmum displacement from the equilibrium point is calm.1s5) +dqa5q u j vkbg36vej -uzgv.aled the

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 underglc)tjhc5 c:b m-+tlh 3oes SHM. When the mass is at its maximum displacement from equicclht 3 mt:-jb+h5) cllibrium, its instantaneous 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 through theh lu3l7d q70fz equilibrium position, its instantaneous7zfl3q0h dl 7u 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 m2q t5dxmvnv., n +7eyhck:e /dass is at maximum displacement from equilibrium, its cv: .kv5, xeye 27dt/dmqnh+ninstantaneous acceleration

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 bobs up and d(sc9b,lz5 3hona.v cezl0b a.1 w()4at qygq kown between points A and B. Where is the mass located when its kinetic energy is a minimuzqck1, 4 wb3(( .5bl)yazgv 9q oh.a0cltesanm?

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 anm * :o9r2hvgcm o)tgy,d bobs up and down between points A and B. Where is the mass located *tm:g9h,v gr o cm)o2ywhen 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 6c9h9 wzq4u +et 1fpmvdown between points A and B. tmz hu4p+ 9vwqf1ec96 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 1mf1yp0,stv+8dw rmox4v(je up and down between points A and B. Where is the mass located when its potential energy is j1mwvrts fv0opxyed 4(8m,+1a 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-and-sprippvf o60qkua j.l*36x ng system produces what effect o*ap.j ol6 vk 30pfxq6un 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 system produces zu*8*qhbkq tmn:;lx30a4 h ire9 qx1y what effect on the sysh1*bkqye :qx* ilun;h04tzmqx38 ar9tem'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-springlxw*bf/ uc)bgxw-w q+)j05yz system produces what effect on the system's mechanig/ wu )-xwbq+j0lc5xw )f yz*bcal 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 s/5 -)f(9 aszg hmvxublpring, both on Earth and on the Moon. Where is thels 5zv9ubh- g/af m)(x 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-sprinlz 9ecjcstv/p) z2j7, 6w /t 3,nwcnceg system causes what kind of change in the resonant frequency of the system? (Assume no change in the system's maspnz wct 2,s7 czl39vtj)jc we6nc,/e/s 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-spring system causes v ; 2p;2jxr oejc-ov*owhat kind of change in the resonant frequenc;c v;jre-xoop* j 22ovy of the system? (Assume 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 amplitude ony)8k.rx*if of a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no other changes inoxiy kr)8*.fn 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 consis+ ts4 wkix cx/hn+zc2*/u0n 7,tgijruts of a mass M attached to a weightless string of length L.cczx*i 0jk,t7+4 ti/ u/ hsn+wrx2 ngu For this 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 timjlpx7p,j b *bq +*pbe/e required for one complete vibrate7 j/+ ,pxp bjqlbbp**ion

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 B are 3.0 m long. whp:1pmsb;ozk,s7 , somo .v+The period of A is T. Pendulum A is twice as heavy as pendulum B. What is the peri zvsb7m so+ws.kh ,p1,:om p;ood of B?

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, t 4oabeu-ngb1(he time for one complete vibration increases ben-41bu (a bgoy 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 pendulum's frequency if both its length and mass are in,gj6 zmqya96iciamq6j g9y6z, reased?

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 the frequency of simple pendo6vc6tzc ;d a)ulum B. Which statemectao)cv6 ;zd6nt 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 tm 0sc-nc9o.;-aica qi o the Moon, where the acceleration of gravity is less than on Earth, -ic;0sco 9. an- aimcqthe resonant frequency 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 repres5n m6ol/m9-xwpw- s4jycj:p qents


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 gbkx*:v li3t7ig* 1yd represents


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 representsql8 l -yoovq;gs,ee+0 r3; ler


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 depe7)ipd:a1q eband 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 is ca/onvan:gfv- q)t r4ru;3bw5d lledqu/n4ftrvav ;b5 r)3owdg n:- the 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 succev7 blx,b)t a9:ckj,l dssive 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 poie+gw(e5jv up*p2lb s4rw ;q0 mnt per unit time is called the wave'sql 2e+pbe *5jrsp0 v(gwu4 w;m

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 times the wavelength is the wav: rjzy q+8dqi;a*shl3hs(h / ze'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 wave increases. What happens to thed dlozq+h; ;w7wgyx01 distance between successivldx ;0g w wh+;zd1qoy7e crests 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 strh3ib/a5 1sym iing with wavelength l and frequency f. A second wave on the same string has wavelength 2l and travels with the same velocity. What is m5 yi/a 31hsibthe 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 of length L, mass M, and tension T. kf44/ ygoz9h oA standing wave is set up. Which o k94h z/fy4ogof the 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 length L is under tension T. The)tfz4 4k c(kc34qgr 5hbffy ,c speed of a wave in the string is v. c gqztyc kffhf(4c4kr 345,b) What will be the speed of 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 wave6d9l segyt1 k1 in the string is v. What will be the speed of a wave6 sk g9yd11elt in the string if the length is increased to 2L, with no 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 length L is under tension T. The speed of a wave in th *ikz3.f / a4y5dwn 5fhcv)aare string is v. What will be the speed of a wave in the string if the )acfhnki* 5fz d/4v5rwaa y3. 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 wavep70k7k58hwhzb fnk 6m t2 e xum-;x;iu is a transverse wave. As an S wave travels through the Earth, the relative motion between the S wave and the particles7 5tfh;8z2 bpk ;7 m0n-xkwi6m ukhexu 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 travelstfix 7/16u iwh through the Earth, the relative motion w/ t6x 1iufih7between the P 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 waf bg/(sd3x c5uve 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 cormqn*t))z a hc5i.tyxbw2s 0:s b+ar3 jd reaches a discontinuity where the rope becomes thicker and heavier. What is the orientatijc* :zybn5) mt.2 03ht)wr bxs+ aiqsaon 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 .yo uauqd3p:0dx4(qxl8k4 efa string, one is traveling toward the right and the o(.lk eda3fx q 80xu4qypu do:4ther toward the left. At the point that they occupy the 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 oti)p3jy*zed 4 ri 5zz/dher on a string. The one traveling toward the right has a posiez 4/p 5)j iizdydr*z3tive 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 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 system, such as a s)ciy,u15 -b6ilzxccl(y.ceu,le c;dtring 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 fu 6r)rp.j+lsh bp51mnmndamental frequency of that string will imrpslp+6.bmh5n) 1r jncrease 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 spuibv(dhr,ic7e 09 zs* iq 8zk( ypa05qring that stretches 2.00 cm when a mass of 0.600 7(ac5k(*pq,y8sqhr viii0z z09be d ukg 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 consta4 ;-i lt n(*,1ospvh3isynmrtnt 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 to go back to itmi ; s(4tnvph3oslr ,n-y*i 1ts 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 zm5/g9jjzza3m s8qo9 a spring 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 the mass 0.50 s to go back to its equilibrium position whmzo j3/q9zsj8a9mzg5 en 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 jz3212 5avq0dx 5mxrq ss4tmkqae*:sa spring of spring constant 60 N/m along a horizontal, frictionless surface5 2e0*ts4xzvma jrqka21:dqx5 3qssm. 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 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 through 10 complete )2chi8pw *g5kx;k j+ 7ac f9csq dkto7oscillations in 5.0 s. What i sp9;27c8d7f)xhkqc*w i kkg5ao +jtcs the period?

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 spring of sprin1sv o(lvww.n -g 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 (.svvwn -1lowm 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 attachme rqbyt :a8i; js-,d;j +1pxapvn2,ked to a spring of 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 total ,b;en1v 8k :ya2x,mp;pjq-asridt j +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 cm. The energy is 8.0 J at this time.m p0 xtnb29,)lvyld/ q The mass is cut in half, and the system is again set in m2ptn9/ vqly0l) xdb ,motion with amplitude 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 attached t6lmp vtlq ;n0v4tnu, /o a spring of spring constant 20 N/m along a horizontal, frictionless sur nll,u0 nv;4mpt6qtv/face. 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 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 s54cca )exi ,es0ro +jn.b-qhhpring constant 20 N/m along a horizontal, frictionless surface. The object oscillatesrc esj.xn h-,q+c5e0i)ba4o h 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 spring cojtu, xv(vfu7x7ofwutaw- t;+: qz 0 a3nstant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 mf 3zxu-fw 0w:uovx;qtt7(ta+7uvaj ,. What is the total mechanical energy of this system?

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 zdl0dj* /s1c9peaa wn *k(z .fjuio,;spring of spring constant 50 N/m and set into simple harmonic motion with an amplitu*,;sfl(j nc9diz*0 d uao.kaj/ew pz1de 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 fot1 u sytpxh1p198u-nam q kc1/rth 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 enera tu/1h1u-xt mkp ncqy19p18s gy of this vibrating 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 disp1q(sj8w0v3.kjcyx u u/oq)fu laced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if t0wq8ujc1q.sk uo j3f)/ (vyxu he 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 spring constant 10 N/m. The object kynaz ).l, x- +r:9qlqtozy)s is displacety-q)l,.oxrs+yz) a:knl q9z d 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 oypc 6u;boc-)k f spring constant 10 N/m. The object is dip -);cbyuo6kc splaced by
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 spr **4lj)2t zggw2 labs;c hpdrovg) b-ws/c)d (ing of spring constant 18 N/m, displaced slightl4d*zg(w2gsg -)/albw tcrd;vh j p) 2lbo*cs)y from its equilibrium position, and released. What 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 at a frequency of 1.2p1 jlyurz* 3knzj, kq kd8(y:97 Hz when displaced a distance of 2.0 cm from equilibrium and reldu9jzk: rn(l8 qj3y * yz,kkp1eased. What is the maximum velocity 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 dif, eg9; f (tcn(yxjrd1oferent springs. Mass A vibrates with amplitude of 8.0 cm at a fre,foexy9n dj( t(c1;rg quency 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 on a spring. In equilibrium the kw z6fx;q a4j,8-*ujsvrjo4 bmass stretches the spring 2.0 cm downward. The mass is then pulled an a,;8x f4ws*qk j z vrb6jjaou4-dditional 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 spry 5pdd;nqby 75ing. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distanc;bp 5 y57yddqne 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. Iny33y+gkotrgj lka51:or k f 9; 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 from rest. Writ:t9akgky k;r1ly 3jr+ og3o5 fe 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 following position versx1i8cdr20so3jg l4xcus time equation84 dr0l1xicox s 2c3gj:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 s* /m sely3t8ufollowing position versus time equati 3 ysm8*esl/uton:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 0w*k kjm1j2luhs x. s5harmonic motion obeys the following position versus time equatisl5hj1*kukj s0.x w2mon:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 simple harmonic motion -th m lj5j 3o1cyg8(gbaccording to themo( tyjb3jg 8g1 h-5cl equation $y = 0.50 \; \sin (18\pi \times t)$ 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 constant of 20.0 N/m oscillatesv3rbp+-hl7xex8ub. 04tg3uuh 5 ubds on a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 cm. (That is, the spring is ldxte3+ p5bu 37xbuuv. hb0-ur hsg 48stretched 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 swinyj3,7ze, , rlq ytrhz+gs in 8.0 s. (a) What are its frequency and period3l7tey +qzrh,z ,rjy , on Earth?

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 28.84 m long. What is its96x*8d, qm xx p+*co;cfvfdq v 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 Eartc1wc joxq ,19km,n sr,h. What 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 is 1.0 m v96zhy)h4hbtr) otw8dr ) (dwlong. What is its period on the Earth?9o8r tdwdbhytz6rh)) )(hvw 4

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 grandfathesedq8-;gq(h nr clock is 1.0 m long. What is its period on the Moosgenqh; ( qd8-n where the acceleration 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 spheric9zeozgnr)zt4b9 y d;9al mass 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 mass (same diameter sphere) had been attached to the string instead?brzo nd9;e99zzg4t)y

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 angul 2b zpfih*nnuj: uy-f4,o2 q0uar displacement of 8.0e. It osyzf-*f nnb2:uiuq4uj hp 2 ,0ocillates 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 givenllo-q1p.y +eb time. The frequency of the wave is 120 Hz. What e lpq+l1-o.b yis 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 timeyne)e8 l0say 9 1fo6n/r7 hcfx. The frequency of the wave is 120 Hz. What is the wavelength?8 y/9 lne7o)n16aexs rfcfy0h


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 an6pz 3; (,mwonlvh/wo t a given time. The frequency of the waveonw/l m(;,3h6w nopvz is 120 Hz. 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 of a wave which has a period of 6.00 atl/ uo *vw r6cze:+tl)2ek rn.4pu:wms?

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 frequency of 15 p:i;e(h 8gmer00 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 speer*-r,n n0 6 ex1 ph is(mof8m;6gjbrpad if a wave has a frequency of 12 Hz and a wavelength of 3.rg 1bfp;o*8r,hmxn s0 ne(-66ajpmi r0 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 a wavelength of 3.0 y6sj-m-g r i8y zyh13 )sdbq8am and a frequency of 8r d16b)j iyq8shszyam-- yg3 12 Hz?

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 frequency of a 2.5 m wa6 jjhny82 z(ukve 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 dedibj o f*i.3q: udm.3ynsity 0.0050 kg/m is under a tension of 1350 N. d:y.do* fbmiij3.3quWhat 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 tenstayt0* v6 /abo,hcak ;4paup3ion of 180 N. What is the velocity of pr6puat34/ p ;khy*b aaocavt0,opagation of transverse waves along 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 wavelengf)3 bmv;nwe7l*f hn;lth is 0.500 m is traveling down a 500 m long wire whose total m7 )*b m;f ;l3fhwnvlenass 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.
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 waveohc3yb is/1 jtaj0/ i) on a 2.0-m long string fixed at both ends is 200 m/s. Which one of the following is not a reso ijc/)0aij /1sb3toy hnant 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 frequx c cmpl,l/)hl)ro n.2 rh15hdency of 500 Hz, which one of the following frequencx1rhc /)rp lcn2ho5.l),hdlm ies 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 observed to have four equarf;qno*b - pj5l segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wav -f*nbj5or ;qpe 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 enu*qrl3z/ s4,jsta6tc k4 ,uwods, vibrates at a frequency of 12 Hz with a standing transverse wave pattern containing 3 loops. What /j6ta k,*uro3 lt4wuq4s, cszfrequency is needed if the standing 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 gzu49x*afm ;,wvc tmy te+5z5 k/m is under a tension of 20 N. What should its length be if its fundamental resoxzm,5 5 z aktt;*9m4uyefcwv+ nance 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 harmonics of a string opfsg es :w*l;741n (n lgh.cdtf linear mass density 2.00 g/m and len cngnd.*sg(t4:lsph 7 e;1fl wgth 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 strisw 5z bbaikx-ov 0s,(.e47vcg ng vibrates at a frequency of 85 Hz, a standing ko0bwvx5 (a,essbzci.7-v 4gwave with five 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.
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://autoconfig.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, 2026-8-16 23:57 , Processed in 9.249083 second(s), 227 queries , Redis On.