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 cyclecut+ yb 1j0o -*if5pnl of 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, the number of cycles pl v-j8xqja+ vu4:linc3:.sw ier 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 maximdf,vlj 9 kvz 25+hq8 i35tt(hbc.lezgum displacement from the equilibrium point is called g(b5ez+vvl,93fztqt82i .5hhk dj cl 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 unde8j 6z :0b8:t.pp aju zp9cjhjvrgoes SHM. When the mass is at its maximum displacement frvjjbt:p. a 9ju8c8hp6 z:pz 0jom equilibrium, 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 t* 8q5kq7pnh);2geo cij fqti/hrough the equilibrium position, its instantaneous* ng o 2cp5q8i7k)qt i;/jehqf 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 displacemechb;+c*ibqm0mapawy;ge zu g.1-u 3) nt from equilibrium, its mcabeu+m 0 1q.wuggh*zybi);ac- p;3instantaneous 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 vert xf8apw76vk w6ical spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is a wwk6 7pafvx86 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 aztpbp0la0m( x tlq+ ,.,k9+8m mi rvqcnd down between points A and B. Where is the mass located when its kinetic energy is a maximum xk0rv , ai(m.89,p zb+plmq q0+ctltm?

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 spzcmsn5/z8gzl5s7wrc /w8g 5l ring and bobs up and down between points A and B. Where is the mass located when its potential ener5/zzzlmnrcw8c g 8s7gs/5l5 wgy 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. xn 2 wn 5;r(7st4jni9jc7mo*sqmfkg vertical spring and bobs up and down between points A and B. Where is txo7iw;r 9j.j5nnmnsg sk* 2(c7m 4 tfqhe mass located when its potential 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/w* 5t0yzl9 pphzno18d6 ra) o .nsqxt vibrating mass-and-spring system produces what effect on the system's mechanical ea lonztsp rpy) oq8n/0thx56wz91*d.nergy?

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 aq* p2/ft/t68 rohnwqn vibrating mass-and-spring system produces what effect on the system's mechanical entnq6/ht*8wqn r/2 fopergy?

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 bg*)bt qmz5 lbt 9b,ut8im ru,y. acg,n5+v2smass-and-spring system produces what eff .vs,lt 2 )uqgbu9m85, *+czb bit n,b5gtmayrect 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 end oehr9p* w3dle:h bn +l0f a spring, both on Earth and on the Moon. Where is the period the 9ll+ewh0hr: nd 3ebp*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-aq13iwu n9qu84*c eqoe nd-spring system causes what kind of change in the resonant frequency of the system? (Assume no c w ocen9u8 3qq41*iuqehange 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-spring system causes what kind (8qdori3vhav/k +z u8of change in the resonant frequency of the system? (Assume no change in the system's spring constant k.)aqurdo i(h v+8z/ 3kv8

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 what kino ,nk h0z4dn8fd of change in the resonant frequency of the system? (Assn ,4ofdzk80h nume 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 masb. r+oxjuqd8 4(de3n omjl ch asc6.,6s M attached to a weightless string of length L. For this system, when undergl 8.4b6 6rme+xnc (.adc3 dhojsqo, ujoing 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 requiredd7h hic3um w .5aq0yhf/2j-sf for one complete vibratiqfsh5h 3 i2uw7y/-m 0dac hfj.on

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 lon-gj34vc fhmtqrj(g. bdf9jz7qs 39c,g. The period of A is T. Pendulum A is twice as heavy as pendulum B. Whcj7 tfgz,j( -mfs93g93dcq qbv j.r4hat 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 simple3t8ds,t . ryf;wqj u)s pendulum is tripled, the time for one complete vibration inc3 qs,)urtfstwj 8d;.y reases 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 length ane e76cxb tai7iwr1d86ym(vc 2d mass are incr 7yc7t68ce w 2m6ixbrvide(1 aeased?

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 pendxl*zmbub h+c5 4:(u doulum B. Which statemend mu+xluo5:bh c*b4z(t 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 accelm) c/99 jkmqo(zpb*s neration of gravity is less than on Earth, t(mqsm/bp ) n9*zckoj 9he 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 *y/gb to*ufde oap o;;27r86 kbr:emj represents


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 repr ggx.w k 6hpaxfxta r73(d(9z1esents


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 ys r 0)n8w7mk e.bz; 8pdwq:ycrepresents


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 vibratiw .kw(.vyd 9y8ky3r 0 c/xnz62zl h am4natam)on, the amplitude of vibration is found to 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 displac zwo rzvw 9.iio6;cue1+sqt64ement of points of the wave from equilibrium is calledtq 6z.6iwo;w+uc v1si 4r ze9o 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 jud 4h32n3ftjzhl) 4,vpuug/ successive 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 pa*qf5* g;l9z5gg ccbsxssing a point per unit time is called the wave'sfc*l s gb5c5xz*gq9; g

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 wavelel+t:j.icn 0 tnngth 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 betwee8min ngeu8 v4; y;al*ln successive crests if the speg8nnula8im v4y; *l e;ed 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) swin x: .yth/ln8nq;j -y (/lmodl2q with wavelength l and frequency f. A second wave on the same string has wavelength 2l and travels with the same velocity. What is the fre:nml; (lhq/l-d/y2n i t.j8y)n qwsxoquency 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 dw9(..4,bxqdutxn/ -njaamiM, and tension T. A standing wawdb,( iutanq.m dnxj4/a - x9.ve 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 lu8v(lo8ks7i T. The speed of a wave in the string is v. What will bolil8 v7 sk(u8e 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 spejf4muc:)1wqxhh:+ ogbb1(w ked of a wave in the string is v. What will be the speed cg) :jxf4 1oub wmqk:+wbh1h (of a wave 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 ten9i/iqdhwp f-h )qbac79lo 7: msion T. The speed of a wave in the strinq h i:m f/dw a99qoc77lh-)pibg 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 wave is a transverse 4 nl8vq7ueq6r wave. As an S wave travels through the Earth, the relative motion between the S wave and the particl67re4nqq 8uvles 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 longitud(8hj s9n;l3gxa1 v ahbinal wave. As a P wave travels through the Earth, t;nvg l 91hxa hb8jas3(he relative motion between 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 wave in+ux, kya 5t4m h+;7 vosa,cais

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 t) 86mibyjwh5p3 fw2syh h,u80a ar4q a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and transmitju4phh6,aa8)r h20i b3w8yfy5s qm wtted 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 aam-q 0w p3m*ql 5hao2k string, one is traveling toward the right and the other toward the left. Atqapmo -3k 5qwhl2*a0m 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 a string. The o og uho:g.ck4+ne traveling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negatiu:kgg co h.4o+ve 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 string fixed at both ends, occ- krq yxm dr.nu3s2hnft.),v 6urs 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 fundamental frequency vl j6mihu 37o: v7ts10sol; a8zt vwc2of that string will increase by m3 ovatj186o v2ss 7u0i;:hzw c l7lvta 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 spring that str-cwpta,9q,i h6uo-8ki0z. j ejyx w2b2y3qm retches 2.00 cm when a mass of 0.600 kg is suspended from w 3qi-caip90o6x yj t ,8-hmy2qubrz, .ej2kw 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 constant 60 N/m along a horizontal, fdi 6f//dty ;hnrictionless surface. The spring is initially stretched by a force of 5.0 ;n f/6idy/ht dN on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the amplitude?

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 /4l/sfvav8b cvan /y5d8; nbn 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 whev/ fnb;n5 svdy8lvn aac4b /8/n 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 along a horizontal, (k: k)h9igf a;llfai a9w5ju9 frictionless surface. The spring is initially stretched )9kk (9g5aaw fua9ll:fhi ij; 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 unt/rw+fo iar 0;dergoes SHM. It goes through 10 complete oscillations in 5.0 s. What is the perrt;fa o 0i/rw+iod?

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 freer78 5pvjpbya (5ith z; end of an ideal spring of spring constant 20 N/m with an amplitude ofyj( 5h5bzt;p 7vpair 8 0.30 m. What is the kinetic 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 attacs,qlsu51u8rpon 3b7w )f5hgqc sd0 du/ /* agdhed 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 energpfa s8bddhqd1c3 q7 w gr,)uns/glo*5us/0u5y 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 t(qjq8n t/:l prime. The mas/q: qnl8rjpt (s is cut in half, and the system is 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 spri xfchm*f6bpfdf i,235ng 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 equ mcp3,6fb5 *f2dxiffhilibrium 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 gp6si3we llt 9)agx4/ 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. At what location are the kinetic energy and the potentitxws /69)galp3i g el4al 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 consh;cq 4+3pw7g 5wfcarntant 50 N/m and set into simple harmonicnf7 ch gp4aw 5;qcrw3+ 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
59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached tognzp6cn2n1 7kb8u4th the end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the tn zcpnh816 gk7b 4tn2uotal 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 spring c*i rpm8l1q 3v)lyka2monstant 20.0 N/m with an amplitude of 0.250 m. Wvmk21ap lr 38ly*qi)mhat 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 1l km.xvah: usf(:i9 i9bm2e5/w.az f v0 cm from its equilibrium position and released. A frequency of 4.0 Hz is observv ka.(9.v:uf 2bx9lm5/i:s fwa mziehed. 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/m. Theeodkf5 93zf9fq 9)z8e m;iduj object is displaced umz z)eq3o9f5ef9j;fki d98d 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 constanti j3;j2v5nxpfpynz4,wxh 7 0p 10 N/m. The object i h745p3ypnnfj;z xx0v,ijp2 w s displaced 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 ft *-ywh oeox-e2 042ytggtfcbb/2 yv:rom a spring of spring constant 18 N/m, displaced slightly from its equilibrium position, and releastyx cg2wboyo0e 2- :h4t*t vg/-byf2 eed. 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 myh yf.c-hh do*(5 9wh- ne5zkspring. It oscillates at a frequency of 1.27 Hz when displaced a dishc-m we5f9hz( -oyh h.d*5kyntance of 2.0 cm from equilibrium and released. 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 different springs. Mass A vibrapye8 za0 sw0.yi7ewo.tes with amplitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5.0 cm at a frequ woes008w.ep z.i 7yyaency 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 mass stretchzuuxokf-/ac1*ver . 0mnjb* 7es 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 period of oscillae*k-7aor f0x. zvc1bnj/*m uution.

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 spring. In equilibrium rjery )1s85rethe mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.8sr) erj5e1ry 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 nu7zz, qv11mcuw. :oistretches the spq1vuwn .om:z1zc ,i u7ring 2.0 cm 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 following position versus time ee oawipvp*kvee;0:/ .quation:wi evopa* .p;kv ee/0:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 forw.utqv zp82utfy 043llowing position versus time equa 4y.vtz3 8qptu0 w2urftion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 the following position 2 :xygnxg;lu( versus time equ;2 nx:lyx( gugation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 e fgs(o hnq,77jnd of a spring executes simple harmonic motion accordingj (7 s7fhng,oq to the equation $y = 0.50 \; \sin (18\pi \times t)$ where y is in meters and t is seconds. What is the period of vibration?

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 oscillates on 2i/op20hrm cysi( .lt a horizontal, frictionl2(iy /i h.t0pmsc r2loess 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.)
(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 swing*2 45p xvse 8.h20cncloukltp s in 8.0 s. (a) What are its frequency and periodhsvol5p *x p8eucn224lt. k0c 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 longp;l rz5be bp bi 7zv8g-*h,6jn. 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. h6hv lev-4t ,j 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 gran tz7z) h).rkl fm1a3lax;)e sxdfather clock is 1.0 m long. What is its period on the Earth?e a x))amk1 l. hlrf)7;tz3sxz

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 longqa y5ax1*kqo8. What is its period on the Moon where the acceleration due to gravity is onqkaq x51 oa*y8ly $1.7 \; m/s^2$?

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 spherical mav ysj cx z;*mic,;d27k n6pa)jss attached to a massless string. When , cp6scaj;) jvnzyx2*7 kmdi ;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?

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-gf8hsuw* -6axx zt21ym mass has initial angular displacement of 8.0e. It oscillates with a period of 36 1xzxth uy m2w*-as8f.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 frequexp*/q-8hus y t ab66xsncy of the wave is 120 Hx*us/bqha6-6 sxy t 8pz. 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 l/,lm -/dakxs of the wave is 120 Hz. Ws mk-/dl/a,x lhat 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 givg;28e ang k4ephds.j,tyuy 5o 4i.m*wen time. The frequency of the wave isgms, tyaiyw ge.8*poejhu 524n. dk ;4 120 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 perio 4qqstsd,: 2had 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 ki8 s-nd( 1udo1500 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 frequencysd.j8j. q:zng;9bu /z hai db. of 12 Hz and a wavelength of 3.0 i9adjjqb.dzs h ; :u.8zgb.n/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 cvxtybl3 m jnp6.6 :p t8yft19kx/ja- a wave that has a wavelength of 3.0 m and a frequency of 1j8yml3a c9tft66tkv: .pxjby /-p nx12 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 wave trh;ljf / /,;xfeh8gm1xgy/ fan aveling 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 0.086lnvdq.s wxr u(9b87 cdl j sv9nhb.7050 kg/m is under a tension of 1350 N. What is nj 9dx6hr s.w9s8(buqvllc vd 8b.77nthe 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 u3u bh*4m6rn0mz dedkjgk hen(7x0 29 7pgnzd) nder a tension of 180 N. What is the velocity of propagation of transversegbz 2) kp0md0j7e49 he3zx*( nkdghun7 6dnrm 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 wavelength z- ,w7oufc w8dis 0.500 m is traveling down a 500 m long wire whose total m7dc,-zo8 u fwwass 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 ofy(w4 mw1 8noe;(nw05ysaw 6yad eei(g a transverse wave on a 2.0-m long string fixed at both ends is 200we i6wgay5e(amon4s 8w1n(yw(e0y d; m/s. Which one of the following is not a resonant 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 thewsm kg6 2guaa0t94v3o;c 82q wsustxr* 8k8vr following frequenciesv gksr8qct vtg8r wusou 9x 0a46;3s2m aw2*k8 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 a standing wave d 97zrwy:r;igb8)g v0v*lpwk u7g6 nf iriven at a frequency of 480 Hz. What driving frequency will set up a standing wave with fivg7gw g vy9*u pir6ikr08 lfz:7nv);wbe 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, vibrad(7xc -m lgde4f, k zcwd(9b5ktes at a frequency of 12 Hz with a standing trans,dedbc5(lz9k 4gmc w-f 7kd(xverse wave pattern 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 of 9p3)xl*f fu 3 qswmsq620 N. What should its length be if its fundamental resonance frequency is 220 3sf6xwsfpmq l3)*u9 qHz?

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 harm 07k nb)hzjsd4onics of a string of linear mass density 2.00 g/m and length 0. 7d 4h)bsnzk0j600 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 vibyniuf1(e1 gu50 m t5upt-6nyarates at a frequp (6 1tumgf5tu-e0yyuinan15 ency of 85 Hz, a standing wave 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://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 19:59 , Processed in 0.815850 second(s), 228 queries , Redis On.