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 periodii acq 1w8rrt9zb/ tp3/c 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 cycles per unit time is call hzms5;j9e96r/y al0znm1hd v ed 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 mag/ aaru0ir/m2ximum displacement from the equilibrium point is called t/ r2aia0 /mgurhe

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 SH 0 iyc5hm; 29irdopv7sM. When the mass is at its maximum displacement from equilibrium,o s 0p;vy27rdic 5mhi9 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 pass/y9i cai(,4da f/ahy9skxb8+yhf1ames through the equilibrium position, its inbyd aia/iafyfmhs ,(x9ykhc a / 4+981stantaneous 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 ascx/0 oeqbm (y9w :8c0kj5lvxt maximum displacement from eq :ys we5xm vb8jc(ol0qk cx9/0uilibrium, its instantaneous 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 tp0t 38n(eekv go a vertical spring and bobs up and down between points A and B. Where is the mass located when its kinetic epk08ngev t e3(nergy 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 p12cv347kda. h3r 2knqrn0:gt ul wyyxoints A and B. Whea42d.qnt2u7yy13:k n ch x0g l rvk3rwre is the mass located 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 springot;wsh2x6s( htcr/7c: oq i w6 and bobs up and down between points A and B. Where is the mass located when its potential energy i6i sxhq o;(s2 w7/ wthroc6t:cs 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 an/ x 9ig0f-e+ ;.fmeyqm*wfyhqd bobs up and down between points A and B. Where is the mass located when its potenti0w;-*f+fy mh.qmf9g/q e eixyal energy 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 vibratingdi-k0u7 +v/ k dvqfg 4pc2mpt; mass-and-spring system produces what effect on the system's mechank074dp -+vkivt ;gp qm2ufd /cical 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 vikbjtu1r /ew 29brating mass-and-spring system produces what effect on the system's mechanical energtu2w1j 9bekr /y?

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 zz06k)b lge3ha vibrating mass-and-spring system produces what effe3 lhz)zb06 kegct on the system's mechanical 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 endm0uq9ey/5+* tzpl q ,z7/jw ay hp*akl of a spring, both on Earth and on the Moon. Where is th jtq + wua lk/*0*pqem9zpzy/h, lya57e 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(z x0c;iiuleh wb4,j ,hohi9 3 k of a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assucwl e;(i, u h93,o4jh biizxh0me 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 ma/soad d knkhb7gr;+7 rj-5r h8ss-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in the system'shd j7rk5sdhg8;r +-bk7an/ ro 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 of a mass-and-spring system causes whrc, 0e8(ut ynzdt5r8/pe lp* 5q8 ctdiat kind of change in the resonant frequency of the system? (Assume 8,pqr(8 5p*t n /ete0c8zdiycltdur5 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 consists of a mass M attached to a weiyc3g wykl*jk+8ddx2g e)(f li:m-n4r y t:x 6yghtless string of length L. For this system, when undergoing small oscillations(2ytx6n e)4g : kwlmkcdgy8 y*ily+ :3rf- jxd

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 pendulume0h6f z2e d5amzs9*unbdwft zu ., 3)o is tripled, the time required for one complete vibratioef56.u 2ztwd sbdza, h*fz 9e)o3n 0umn

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. The period of A is T. Pendulum A is twiyuf/6v a) ki na+*4munce as heavy as pendulum B.n kf*iy4u+ /au vn)ma6 What is the period 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, the time for one co:44xzd1dz: ex-iqhcrjn k,r 0mplete vibration increas :e-rijqxxn r 4d:1dh0zkzc4 ,es 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 pendulum's frequency if both its leny6ejk yu h(tbn492tibnnu),x+ 6vgnbq w (* r(gth and mass are increa h, yu nte iu ((6gjt(*nbbw26)yq4n+rvnbk x9sed?

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 tcq pk6vyzv).5 73wmon wice the frequency of simple pendulum B. Which stc.vn wozq5yv3kp6 m7) atement 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 tohq c)c6:6 ve*l3dwph:q b:ovz the Moon, where the acceleration of gravity is less than on Earth, the resonant frequency of the pendulum:lbqv 6 p*wocdhc3 :v6h:z)qe 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 represe+mc;: 20s i vvhzs3sk 6my mzf2c1l /qw24djfcnts


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 m (g 3*dwwapj;cqk8y3represents


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 represaktpsu;yn m6q9k89 i3bl+*ndents


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 tyj 4qa0o/idn( *m d/leo depend 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 equilibr2yp7b,mlr()k1t a gwl ium is cal ,kabyr21gp7(w)t llmled 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 su 8fbdc8g cxdy-3 .2cjlccessive 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 o2cih sa1y;nj,sq0y e)f a wave passing a point per unit time is called the wave'snsy2hy, ec1)s 0qi;j a

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:a :ulg dl d)n37zap)64 o(pn gl(fmbg 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 wave increases. What happens to the distance b x)-/ njz;ojgdetween successive crests if the speed rex)gd/;jzj o-n mains 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. Ain2z* fruav3ct1aa95 second wave on the same string has wavelength 2l and travels with *a92rzv3f5anit1uc athe same velocity. 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 of length L, mass M, mgbpr1 gk, 7c2 1r:i7jdty8woand tension T. A standinytkrw77 odcr1m1bj: gi p,g28g wave is set up. Which of 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(nt. w 6r0fbtzbbp1t* T. The speed of a wave in the string is v. Whatwrt0zp btnt b.6b*1 f( 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+b8jcgaf1u(i wave in the string is v. What will be the speed of a wave in the string if cu8 i(a gjf1b+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. T)-hxbn k nd)3nhe speed of a wave in the string 3nkndn)b-xh) is v. What will be the speed 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 wavex ,ieppt1xr ub-p* :ukh; d0)p is a transverse wave. As an S wave travels through the Earth, the relative mpx*p :tupd,hxpe0ikr-)1 bu ;otion between the S wave and the particles 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 longitudina-8b/ x35.9zpl nwj kdzf/tib nr(ki*nl wave. As a P wave travels through the Earth, the relative motion between the P wave and the particlk(lrinnz- dx3 ./b/9fw8n pb*z5kjit es 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 wave is3,lk yw 8 ;wcq1m0zu arxf-3hk

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 rizv ;26by lm7ywght along a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflect; yy6w z7lb2mved 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 amplian7zwv .i 0tt6tudes pass each other on a string, one nttvzw7i a06.is traveling toward the right and the other 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 other on as9 z0 i q kzk+5,rxyma,6zm)ml string. The one traveling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negative direction. At the point that they occupy the same rema5rzq+60mzi lkkzs9 m ,, )xygion 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 string fixed at both endsyqskw- o3x 7us9rrt/ s1 kabc5.p2j,d, 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 fun7hee gpf533 hgdamental frequency of that string will increase by a factor ee35phgg3 fh7of

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 spring that stretches 2.00 cm when a mass / rnj5hf)i*rx of 0.600 kg is suspendedn /h*rixfrj) 5 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 bz 4+p-u( qpxja 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 when it is oscillating. What is the ampliq4x up-zb+p (jtude?

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 spring of spring constant 60 N/m along a horizontal, l*gj 7 0ivvh;/o*tx:xpzsv q/frictionless surface v0xvstz/:pq ;o/ljx*7*g hiv. 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?

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 spring constant 60 N/m alos7oc4rg5s3u2vks a4 dng a horizontal, frictionless surface. The spring is initially strgu3kd r4o csasv54s27 etched 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. It7 2qyd:yd6l lh goes through 10 complete oscillations in 5y 67ld2:h yqld.0 s. What is 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 frouu 6/tslf 64b,f)xp7c ht ;euxm the free end of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic 7u,s6bf/c up; tfthl )64exux energy of this vibrating mass when it is 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 sprikpyh5w3e i;m p;8hm9dng constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and 3wm9ekd 8hi;p5hpym; 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 cm. The energy is 8.0 J at thtvv d vdq*)a: g/)d9+qld-yt icx,rb3is time. The mass is cut in half, and the system irdlid)v bt 9+,a d3q/*vxdq-:vc y)tgs again set in 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 to a spring of spring constant 20 N/m along a b djqy-p,7ucn;3c/n ahorizontal, frictionless surface. The object oscillates in simple harmonic motion and has c;nb /a cj3 7-,pyudnqa 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 ofu+f70v2rx nqx 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 positio x2+rq 7n0vxufn. 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 n*g3 ; xxxkyu 6ei93wcof spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the totalxx ue3n 9wk;ci* xg36y 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 spring of spring*qnu(e)f 95tf2adix b8y: by f.gl1yc constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the totalbe.ty:lf8 x2)gy i1 bf n5 q9*ufac(dy 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 l:mrhv eylc: b o2 adqu;9-/w(spring constant 20.0 N/m with an 9c(qmwhd/b2:-l o:l ua e;vyramplitude of 0.250 m. What is the maximum kinetic energy 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 displaced 10 cm from its equ8dt2m)nhy*wr px1 a m-ilibrium position and released. A fmt a1xnphy8m -r2 d)w*requency 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 spring constant 10 N*8 sk; lzemn+8y s rbm0i+jsg7/m. The object is y0b* ls+ 8k8sn+7zse;mirgm jdisplaced 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 sp4k17k 1 .c-a,ta3yli;r bgzqsk y * +cvbl4xhpring constant 10 N/m. The object is displaces *cy4avxl4.p;1q bb7ci1grkhz,y al3 k+tk-d 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 spring of spring constant 18 N/m, du m+.tl3k(mjdisplaced slightly from its equilibrium position, and released. What is the frequency of its vjtd(.3 k um+lmibration?

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 ofm2*f 1ucr;7 :k,nvynmtp 6q jh 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximu*j6 vmftynpc, mq k 27h;:1runm 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 different springs. Mass A vi 6ypns ts u;0e-dcf34bbrates with amplitude of 8.0 cm at a frequency of 10 Hz and mass nybse-t;3f 04dpus6c 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 sumcm490k a h(bfspended on a spring. 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 from rest. Ch4c b0mafm(k9alculate 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 spricvsojhq *97j5 ng. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distancs7voq c*h 95jje 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 stretchesqdz-u;y.g5 jf mfy:6z c)/0 4nbgsili the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm b yiuyzzis gfmc5.6ljnf4 :) 0/;g qd-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 following position ver4 tg;sr(ju2iol n:om.sus time equasg2ni ;(jt uolr:m4o.tion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 thq6 g:9h +im/wd w9vo.rzrtg5t e following position versus time equar t9 :w/tgw.hvg9zi oq5+6drm tion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 harmod uv5+.abscy47)/ rjwq)cmnqg8 t 4bsnic motion obeys the following position versus time equatiw yc5ns /tga )v+4r8qj)4m usbbqcd7. on:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 execu6dvmd+zgm dwrqx ,grx1o 2/ *1tes simple harmonic motion according to r*6 1 dzqv2gw+dm r1g,m /xdxothe 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(6kqvsl;j y9 v/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 str(9;sv yklq 6vjetched 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 complezhwfl5o52f ) v:urpk(te swings in 8.0 s. (a) What are its frequency and period on Earo( u2fhzfl:k5 wvr5)pth?

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 its period on n2*ycu9 t b46n ub15+iudlddt 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.v sja4/qw3 yu+ 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 long. What is i3b(f.xdkopldd 1 .1k ots period on the Eap1.. d3olbdk 1d kfox(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 1.0dh/ajm( 2wyoohaew3cu(tqi: ( xw s.jm)r*- 4 m long. What is its period on the Moon where the acdjcj e* q m34h2ym a/i)wur.(ht:a(wwox-(o s celeration 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.mmue4+h o9u/w25-kg spherical 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-/m+wuou 49h emkg 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 displacement-vm2 i6 6zr y.uf4hozv x;1tla of 8. uv;62o1vazy.frzh6-i4 mx lt0e. 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. h. a5hev wry g*zf-. j y v-imf-ed5kk2z/9j2bThe frequency of the wave is 120 Hfzvyh5b*j5-.j9h m k -2 zafydev -rgwei/2. kz. 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 frequencynec 807ir/nbmc d8e+7iid o*2nc w/ hi of the wave i b7/nroi2 0 ii*nccc78d/mnhiee8 +wds 120 Hz. What is the wavelength?


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 a given time. Theg vgtt +va zq8.ky02 x;pvbns-n:,)i n frequency of the wave is 120 Hz. What is theq- gp0nbszv8 , tn;).+ iynv:agxv2tk 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 whiczs2q3tp; n4mvh 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 frequency of 1500 x s81ajnrb apv;i.f o. v55w;fHz?

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 12 Hz and a wavelength omo)2 0yfjec7u ajip 8t3sv )r/f 3.0 t y)/) jp3mi 8e0a vusojf7rc2m?

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 ofuyox euua89q. 2jk; gkj hj6-* a wave that has a wavelength of 3.0 m and a frequency of 6jjq2ok*j 9ha;y ukx8 u g.eu-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 +n: bv2v7.ron r;p: e8w zueqmm 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 0.00:x:u67 s.bn8cjgck/ugjp7 x m50 kg/m is under a tension of 1350 N. What is the w8 cbugkgcjp/77jx6:n:uxm s .ave 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 tensiongcdoo98 ;/g/bqdj6ohes7j *t +h o 8g s6p6ezy of 180 N. What is the velocity of propagation of transverse s;yjodgje 9 p*+ q6/cs h7bo/z8e 6o86tdgh ogwaves 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 wavelength is 0.500 m is traveling down a 4mc7a cgw2 -legd 4d:7lubt ;v500 m long wire whose totalelg t;:7m7v lag wc dc44bd-u2 mass 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 wave on a 2.0-m long string fixeyf6d( 6pfx :fco08gh*g)fxeld at both ends is 200 m/s. Which one of the following is not a resonant frequency of this s xo0*:68felg(f y f6)dfpxcghtring?

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-xp 8w4c3u/hgke /mv s7rliy9;kd9ft, which one of the following frpme-w d348y/c99f7h ux/ rig tkks; lvequencies 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 equal segments in a6y *h fyp;43pweu8zvh standing wave driven at a frequency of zuyp3eh vy6*h;w 8f4p480 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 9/7:ls cph n.vwfzhi 7 e2fa/i jmx8v(of 12 Hz with a standing transverse wave patter 7hcal x/fs. jv 89h:m/npie2 ivwzf7(n containing 3 loops. What frequency 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 g/m is under a tension of0+rvtz i of;bd,hou/ju.-1lm 20 N. What should its length be if its fundamental resonance ; d0 ,h+-1zutf /boil.vourjmfrequency 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 oftu ioeu4.3w +zk+-u1yeh8q)fl nnx 4 m a string of linear mass density 2.00 g/m and length 0.600 m when it is suqn.14 y)4+3zetu im-kxlw8u+ enh foubjected 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 at a q uouywlfv,: :. bh3dane,+i6frequency of 85 Hz, a standing wave with five l,yu+ : ,wunv.3fblhoq6:adieoops 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://autodiscover.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, 2026-4-18 08:06 , Processed in 0.511647 second(s), 228 queries , Redis On.