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 periodo9 sgzg (fw8add zpvse9962.h ic 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 ou6 fk ds6iq)50a*:l :2hndo v q+xrfhgf 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 uf japd+4m6p3maximum displacement from the equilibrium point is called thepj6pfu +amd43

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 its maximd +h,bxs8; jquum displacement from equilibrium, its instantaneous velo jq+sdh,;uxb8city

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 eh(ld x )hty1(p3azn b n.)h0gcza;9jSHM. When the mass passes through the equilibrium positi1zt0 ;)(g b3hp. xyhln9jhdeanca)(zon, its instantaneous 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 displ2 un;c-mxf0 sfacement from equilibrium, its instantaneou0xu fnsc;-fm 2s 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,dic/te/ 2w orne3y8h4 /oqak spring and bobs up and down between points A and B. i/yo k2w/h,e et4q/8arc3od n Where is 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 doy8- i6scgu;cry 4cpx ,( tnxi0wn between points A and B. Where is the mass located when its kinetic energy is a maximuxyuc86c- sn,4(; ityi rcxp0gm?

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 andmnpx/ qjtxn: 2n 43unewsm/12z aa .td1y7oi ; down between points A and B. Where is the mass located when its pote.quz/tnymn 1/4ds3:oatx2;mxw en2pin j7 1a ntial 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 e vmes 6r8b9/udown between points A and B. Where is the mass located when its potential energy is a ma9ebr6mve/ us8ximum?

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-spring system produces wh/l ug7nf8 rb a(6eg;toat effect on the system's mechaniolg f 7t68;ua rb(n/gecal 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-ak6qv3:/ e4mv rb1h vp4q07*fvpr nmxj nd-spring system produces what effect on the system's mechank0r7bmv jq 6/v4nvprv q f1m:x34 e*hpical 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 vibrat;j/ ul l:bii-cing mass-and-spring system produces what clu/:lj - ibi;effect 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 of a spring, boto zoe24ynlm )s;*p; peh on Earth and on the Moon. Where is the period the grm)z2eo sl *e4p o;p;nyeatest?

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 system causes what kind oq5;khhy/hav2 b2v0z gf change in the reso;22qhvyh g/ 5 0zkbahvnant 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-springaf*rwvqygz:+m; oflmn/q7l *rf --0 w system causes what kind of change in the resonant frequency of the system? (Assume no -*:-0ranrqm/mfvgo7lw+;fwq* fy l z 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 of a mac u-wt,+orwz 8ss-and-spring system causes what kind of change in the resonant frequency of w ,uo+r8tz- wcthe system? (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 consists of a mass M attached to a weig 7hobxcn :,r.mk)ek*z htless string of length L. For this syste )bzhm*ox7:. nkcrek ,m, 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 required fx dv x bhhd08c*i8bm86or one complete8dc* mhd8 8xxv bi6b0h vibration

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 z(w4dg s 7mmq0T. Pendulum A is twice as heavyw407 qz( mmsdg as pendulum B. 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 to1hv slieq;7e+ dz7ri5-du -oripled, the time for one complete vibration increases le-su7oi75 qie;+r-hoz1dv d 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 and mas);kek m0qhlb 6x 0sp,rge3l1cs are incre 6s0mckk ;)lhe10pxrble,gq3ased?

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 bac ;r2rykm */(kr8mi biyk and forth at twice the frequency of simple pendulum B. Which statemen28/ i ;r(kbyk ymmi*rrt 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 acceleration of74jx4mz6ylf uqeixn pe(7(t fk)da d; y030nk gravity is less than on Ear73kz(xqdlyap 4yni0xf4) ;e67k(um en0dj ft th, the 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 represeagr/ q9:/- l /zn0 rhj-fnvktents


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 represents)kvp )t cj4aqx 21ama4


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 represenehe x:us;m2;xts


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 vibrationot s9syu +kl0-, 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 displacement of points of the wave 6g:u ; cg4e dmg/2,ug.nj y2l7kkatpifrom equilibrium is called th/n7 .4ja mek ul;k2gy,6t2g updg:cige 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 successive cr/f pnc9kpt 3kkcfe*pan-yg,v0m /) zt:c(h3tests 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 is called the lt.5c8+,ax7kd bwcz vx:z 3a. yz)giqwave'3qb k 8it+dzl5 v ca) c,zywxag:xz7..s

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 frequencyk :xi rj9lz5fz:um3l 8 times 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 wave increases. What happens to the d+bwk p ru8jyto(8/p,iistance between successive crests ifprwb 8oj/8,+i ytpuk ( 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 strinkh w4w2 t*f 5-vha1yqm1 w/dn0 kchuk8g with wavelength l and frequency f. A second wave on the same string has wavelength 2l and travels with the same velocity. Whata*-htqycdfm/h 2 1u w5w kw1hvk4 08nk 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 wak k:6 rhyq41dr(z :ykc.qip/bve on a string of length L, mass M, and tension T. A standing wave is set up. Which of the follqzrpqyc6 ::4kb .d/kh (riy1k owing 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 speezarjfp u:0,-xd of a wave in the string is v. What will be the speed of a wave in the szf,ax:0 jr -uptring 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. Theztrmh *wz-6n5)n xz p(ufhg(7 speed of a wave in the string is v. What will be the speed of a wave in the string if the leghxpnuz nwh((z7m* tfr-z) 65ngth 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 al*w5j4lc by-rmd q( 5g wave in the string is v. What wil(l 4qb*dwc-5j 5ry mlgl 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 wave. As an S wave trav 0x(wpe3lgv6pc). nz;odu3 n dels through the Earth, the reladvou.g3w x) n zc(e pdp;ln036tive motion 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 longitudinal o;jb ue1 ov u0das3/2 ow8eks-/uos 5dwave. As a P wave travels through the Earth, the relative motion between the P wave and the parti /;sw /us805jub1v k 2aod-o odese3oucles 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 wfn5s;tyv .ll0 ave 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 rigr 8+i)e0qzzrg yy,v w4ht along a thin cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and eiry+w 0z,8z4)vg yq rtransmitted 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 eyd, hqr0gmxyfui fx/:0 - sm:/ach other on a string, one 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 timxsyx/:mm0 d yi0 rh:u-/, fgfqe

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 tsq iqd0 qt5s-,raveling 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 region ofdiqq- 5q 0st,s 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 strinkr w1ms.r 18(nlhstw)p/4tah g 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 fuxfm6 )9uxkvfp064 bo av m3sb1ndamental frequency of that string will increase by a factor ofo)693fvm04v1kx6m a usbbxp f

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 constr8l hhmb;mb(:tsidjl;.gb 3, ant of a spring that stretches 2.00 cm when a mass of 0.600 kg is susp.,rl bhsj3i(l;dg tm;b8:m bhended 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 constant 60 N/m al ou gz44/vyo;xy7i.7n/ ,ra 1wh dfcyjong a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes df7;y 7 .vyoo,xzg 4ca1r/ nj4yw/uihthe 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 spri )fo0.v,vsuo rng 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 v or.,v)fu o0swhen 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 spring7n4s4 xihe 6sva1rb-e 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 t4-s n41h6xve7i bs earhe 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 hg r-xj.ew16kthrough 10 complete oscillations in 5.0 s. What is the per16jrx kheg-. wiod?

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 a /81g; +e+ c:l qruoe,gmfsnernd forth from the free end of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of eng m1+g ou,rrl+c;e:8sq /f ethis 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 attachh q1sq a.7/jb7) fybhqed to a spring of spring constant 20 N/m along a horizontal, frictionless surface. Tha1/)q sf7bqhhj7 y.bqe object 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 cm. The energy is 8.0 J at this time.*qwtjb9; le( )p4as2 ad qdd1(5lcu 2:ixgrxo The mass is cut in half, and the system is again set in motion with amplitude 4.0 cm. pd :9gdlts dja4l51bq22oa c;eiw(uq( *)rxx 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 attacdf bu wujg28/ ;lm1)kthed to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motionfbmw8/; j2g )ulk ut1d 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 spring constant 20 N/m along a hotpzf8/;zz/k)8 hc k0xxia.wdmi x5; qcc)0p nrizontal, fra) zzf)88p ;h0k50/;dqkxci / .tncximxwzpcictionless 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 spring constanxg n/6e sqv+1lt 50 N/m and set into simple harmonic motion with an amplitu +x sqng1/e6lvde 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 to the end of a horizontal spring of/5daqaq dhc1ioc6 )/; jq5vib spring 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 syste65vca/1 5c dqh;iqa/qj )id obm?

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 anrhx-x* mj p;x.2xovqd 3 )nil;sd6n5p d forth from the free end of an ideal spring of spring constant 20.0 xq xi-;56p3d d* n vxmlsp.nhj x2;ro)N/m with an amplitude 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 systn .0v ujphf,k*em is displaced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mjup v ,.k0h*fnass 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. Tj 6z- br4y (m 66c+o9mfotgfyahe object is displace9f ozob4 6ra gc ymmj6-+tyf(6d 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 10 N/m. The ok7tu/7kish u7 bject is/k7iu sut7k7h 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 from a spring of so3a+8 frglm/tb9o8oj pring constant 18 N/m, displaced slightly from its equilibrium position, and released. What is the fr8fo abo93/ + rlmt8jogequency 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 oscdu2kl3ohywfh,udv.b70:4 l d c ,3jdp illates at a frequency of 1.27 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum velocity attained by the muj03dpbl3dvw: du24.ko y ,l fh7d,c hass?

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 dno 2cs h-bxa:iw,+x, cifferent springs. Mass A vibrates with amplitude 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 speea,s,x2 b -c i:hncxow+d 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 hjvvq 907+u r;:t .rk.ag9e ktxxpea*the mass stretches the spring 2.0 cm downward. The mass is then pulled an additiona..a9ve*x9:xkgh v ur; +tjrqeta7 kp0l 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 spring. In equilibrium the mass stretch(.zhf w( itczy q3m4c8tur(qasb1;r 8es the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calcch. cfmqtr (4i (b 8qza8(uzwtrs3;y1ulate 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 azq8 a6qm*o .az spring. In equilibrium the mass stretches the spring 2.0*qo8zma 6a q.z 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 posi dlors4sih;*/i x5* dstion versus time equard */s hxosls*; 5dii4tion:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 poqwa:gty7)kqd 3wmx d4kb7 )h *sition versus time equdhq7)ktab347w )g:qk x mwdy *ation:
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 harmsd6 eg,,ck neok/b 1f,.mrg k*onic motion obeys the following position versus time equationmbncgs*g. 6f,e /ek do,rk1,k :
$y = 0.50 \; \sin (\pi/2 \times t)$. 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 execurd23jhcj rdte3 01, dtkdvo, .tes simple harmonic motion according td r htj23v kje1rto 3c0.dd,,do 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 cog+:qhr2/.q;zpu a3 a xp5pyyinstant of 20.0 N/m oscillates on a horizontal, frictionless trz 3.5 q;xpup:iyga/+qaphr2yack. 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 swings in 8.0 s. (a) Whatn 3oe a *gsq,p fm0r9 *9,b:lupd:bopf are its frequency and period on Eart,oo,3m *p9 u:f p: n*90e rpgafbdlbqsh?

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 itsseq, j+q r1dbkm:s 0n/ 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 Egk g7pbgqy-21 6f t7poarth. 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 its period on the Ed: l *za)hf2kpart k2:dl*z pf)ahh?

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 long. What is its period ony3tpj zf t+ixq5o(8yzh 1km:/ the Moon where the acceleration due to yptz+ot(y3 :81xkqji5fzhm / 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 sphericali)c(at 4 fa7ik1 esk)d mass attached to a massless string. When the mass is displaced slightly from its equilibriumkcf d(4e ti iasa)k71) 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 displs0mne)1om.o +)yt yl sd e(r6xacement of 8.0e. It.ysm)e so6tl y1o)d +rxn (0me 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 given5f- y g r5eb65 vwosr/hufnuh(u:1 -wt time. The frequency of the wave is 12be 5fu rfwt/-55grhywohu6 s(vn:- 1 u0 Hz. 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 givendg am)d g51u(z time. The frequency of the wave is 120 Hz. W a(dm)zug5d g1hat 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. The freqq+2 ob5ktyamm1daxl7 ;9-qoe uency of the wave is 120 Hz. What is the 5+ax qm72olb q1-ka do9ye;mtwave 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 h ij) oia0wdwm846h/ i jlo(jjd*u+s:l as 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 wavevr 3ek:d*9nw/w 6wg-ox8 snxr with a frequency 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 hae7dmdo6y(yo 5 s a frequency of 12 Hz and a wavelength of 3.0 my oo(d6e5dy7m ?

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 v0ne:yezor:7zf)g. y ybp7 n/wave that has a wavelength of 3.0 m and a frequency of 1vyy.:7e z :neo70b r/n) zpyfg2 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 traveling at 1400 v;f22juu mo;a 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 k1; f:7oqvx msfg/m is under a tension of 1350 N. What is the wave spee7mv1f;sqox f: d?

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: w. ey+n+yu j/rniec2 tension of 180 N. What is the velocity of propagation of tranrju + iwnn:/ycee+.y2sverse 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 is 0.500 m is trag e3ro52y0 olflpj/h9veling down a 500 m long wire whose total mass ioej 9h52rllog0y/f p3s
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 longty/6z lexw8ax1 1 a8;oi5y frv string fixed at both ends is 200 m/s. Which one of the following isza oixxlvf8;/5r 8 161wt yyea 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 fundamenta:lfwv*zjgo-,.yun 6z v)p1x1g 6xrs,vz o;cbl frequency of 500 Hz, which one of the following frequencies can set the string into resonant vibratioboz.v w-xc ,: ;1*zzvsj g6fvx 6g)r1n,yploun?

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 havsi*huztlb- -.)fo(uz e four equal segments in a standing wave driven at a frequency of 480 Hz. What lzz-bs.u*fh)ui - ot(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 botywg 9vdc f:/kt5ao*.m h ends, vibrates at a frequency of 12 Hz with a standing transverse wave patte 9d:ky.ofv wcgt/ma5* rn 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 20 N. What shft3q - 9pqp.keould its length be if its fun9qkp -eq3tfp. damental resonance 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 of linear masskeh ub4/8 af 1ra ctarg2e32/s density 2.00 g/m and length 0.600 m when it is subjected to tsra g3842ar/ek ta1ehbuf 2 /cension 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 vibrate , 4nwachn;7ac/qx q*o8i;qvs s at a frequency of 85 Hz, a standing wave o7xaqna;wh84 q;i * ncvc/, sqwith 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, 2026-4-17 03:47 , Processed in 0.507571 second(s), 228 queries , Redis On.