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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

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The time for one cycle of a periodic process zc q2p- ,a:drtis called the

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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 igmcapvy0-;5 is called the

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For vibrational motiokg o (+e46;wxhxmsw cp5bv81 bn, the maximum displacement from the equilibrium point is callwghe5 xvp x8;wsboc4 m1 6+(kbed the

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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 maximum displaom m3r+qx3 rou;3s2zm cement fxqm moozsu+3 ;m r32r3rom equilibrium, its instantaneous velocity

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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 throul8 d5 )siumm (duf5,ypgh the equilibrium position, its instaiydu 5su(,m )5md8pflntaneous velocity

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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 maxi/ ;gkd6fnt ofz7e5( njmum displacement from equilibrium, its instantane/ ;noe tkfgn6 5d(j7zfous acceleration

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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 b(xqyr) bwg)yv 1 (ox)and down between points A and B. Where isr bv( wqy )xx1oyb))(g the mass located when its kinetic energy is a minimum?

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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 points A rw+wxj;,:rltj( 0s- xwoe*kran*kw,0 xt-+:rrrlx(js;e wojwd B. Where is the mass located when its kinetic energy is a maximum?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and down between point- ;gff(q rfy- ed1e +qozuek3;s A and B. Where is the mass located when its potential energy z 1;qe kfqff+-(d uryg-;eeo3is a minimum?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical 00e)w4*gfvtyy2 gmg; ol fd tq .gxcs/7-/l wkspring and bobs up and down between points A and B. Where is the mass located when its potential energy is a maxf0/ stl wg* tm4oxkqv;ly-w2e/gfg.0) ycgd7 imum?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the amplitude of a vibrating z vepb0k v*,buc 7ym5*mass-and-spring system produces what effect ovuy*vbcb5* emk 7p0,z n the system's mechanical energy?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the mass of a vibrating mdaqh2 uj+s1 q s0.z7ehass-and-spring system produces what effect on the system's mechanic s2 jh dhqzsa1u0q7e+.al energy?

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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-anvm* qw 5,bsu:xd-spring system produces what effect on the sywm :*u5s,qvb xstem's mechanical energy?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass oscillates on the end of a spring, both on Earth and on the Moon. Wheremss,g, agnk/5 /cfyk()8sp9f y-y d fb isfy)y9 5b/,(k-8/fgksasypn d,m s fc g the period the greatest?

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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 sj8p3sm( 3uxu :w /ieh dp3/b pmycsg62wd r25nystem causes what kind of change in the reson3usp/jch2d w d:w ix pb(6m/s35g3pnm28u ryeant frequency of the system? (Assume no change in the system's mass m.)

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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 w:8qb6 lj-bf zg iwfy77hat kind of change in thei8zf7l7bqjwf6 y :b-g resonant frequency of the system? (Assume no change in the system's spring constant k.)

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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 causesz1sc7d p0b h1+ hf6aja what kind of change in the resonant frequency a1bshzp+7c1j0dh f6 a of the system? (Assume no other changes in the system.)

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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?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consist 1yb*oc6+n- b8s ;tmy yhf8qhjs of a mass M attached to a weightless string of length L. For this system, when un ny8bm f;tqbyj s1-8yh+h*o6 cdergoing small oscillations

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the mass of a simple +7 cbez j,g3afpendulum is tripled, the time required for one complete vibrat 7+fj b,zage3cion

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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. Pendulump. hh1mz5fv n4 A is twice pf.v1mn h 54zhas heavy as pendulum B. What is the period of B?

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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 n.)w fcu1yj: wfor one complete vibration injn.yf uw:c)1w creases by a factor of

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to a simple pendul65 )trkbt;a p0+sa1yzkystu w d;ul y)com 188um's frequency if both its length and mass are incz5ucot;0yk18b;aws8us+61k rpyt) l mt y)a dreased?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Simple pendulum A swings back and forth at twice t;5 ie,/ izjpfrhe frequency of simple pendulum B. Which sta jfirize/,5; ptement is correct?

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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 of dg j;gml*vc v08,szalz /vj y1d/2ep2gravity is less than on Earth, the resonant frequency of the pendulum wicjs21vje8gzym vl/ ad p*gd,2/z lv;0ll

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve A in Fig. 11-1 represdc4ku8 x+s2,gzxee b;ents


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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve B in Fig. 11-1 represe znawz(rfw+7hg4ys w d56*l,unts


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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve C in Fig. 11-1 represe 32fo6tgg7v hq 26behvnts


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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 depeo;liiyl)z 115y * g( lb/t4(hfy2qdood :onlhnd on the

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a wave, the maximum di-wp k;; ,tfve s7t-rh.hosp) fsplacement of points of the wave from equilibrium is called ; fkt-- rf.eho v7sw)s;pt h,pthe wave's

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The distance between successivekp*npjep 3pms /6pd *3 crests on a wave is called the wave's

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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 calledq-2 .v e6j7iekv /o yo5tp(szn the wave'je- 5tzv s.yq(ken/62 p7 ivoos

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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 ispudul 1 *9+i1dxppz5 u the wave's

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of a wave increases. Wrvq 4y 89ga4lahat happens to the distance between successive crestsqalyg4a94 r8 v if the speed remains constant?

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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. A second wave)f w4bi*6k rjia q3elr+g o6)m on the same string has wavelength 2l and travels with the same vel3e+ lmafk) ojgib6)4qri6* rw ocity. What is the frequency of the second wave?

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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. A*vf:boi/j d66hazqmu,f qfzg .b0 0s: standing wave is set up. Which of the following is tufhfqf*gb/, :q60.d6 boz ams zj 0v:irue?

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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 tensi) 1j39m fo:f.jqwiz wqon T. The speed of a wave in the string is v. What will be the speed of a wave in the string if tjq.fzw :3 f9wj qoim)1he mass of the string is increased to 2m, with no change in length?

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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 tens qk.7p 2ohw5qn.ylde b jbc;n9w) b1a.ion T. The speed of a wave in the string is v. What will be the speed qh)2p;9n5edacb1owy .nb j 7w kb.ql. of a wave in the string if the length is increased to 2L, with no change in mass?

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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 th4phrfzy*f4/ xi 0a1k je string is v. What will be the speed of a wave in the string if the tyi/0 4hakxf1jzpf *r4ension is increased to 2T?

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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 //pl. wefc 2lkw9y7mqcpb7z 0wave travels through the Earth, the relative motion between the S wave and the pqbp lce0wlz/7 p/wfcy9 m7.2karticles is

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In seismology, the P wave is a longitudinal wave. As a P wave travels throughf l)irt; gbsi*)n/-lq the Earth, the relative motionl *ilr - gntq;i)sfb)/ between the P wave and the particles is

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity of a wave e8b (vjny*,qbis

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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 cocu r*+v9e :kf5w(vyq urd reaches a discontinuity where the rope becomes thicker and heavier. What is the orientati(5we:u9yc+qvkfr *u von of the reflected and transmitted pulses?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two wave pulses with equal positive alz3v*;c nl0rx sf9wf)bm nr6( mplitudes pass each other on a string, one is traveling toward the right and the other toward the left. *c)l nrzn9 x w(frml60v3 bf;sAt the point that they occupy the same region of space at the same time

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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 tr8ztp)ila ub; 0aveling 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 of space 8t;a0 pl)iubzat the same time

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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 s n nve:sd,.13mkqqb .fixed at both ends, occurs when

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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 fundamen /9bm3woz kaj+tal frequency of that strinw z93 /omj+kabg will increase by a factor of

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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 rfyt:pod4:pqwv17,l7 qxk:ewhen a mass of 0.600 kg is 4p q:1xpe7:l7d,qf wtok :ry vsuspended from it?

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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 s+elt p-(pih*uq1 d ez6pring 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.pelu+ h-p *6z(eiqtd1 50 s to go back to its equilibrium position when it is oscillating. What is the amplitude?

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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, f-3m s da cv;f;cgoy9q9rictionless 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. Whafcd m99o;vs; ag-3qcyt is the period of oscillation?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a s o;ofn/ xdu+p0pring 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 positio; donpfo0+xu/n when it is oscillating. What is the frequency of oscillation?

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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 oscillatbkn0hbfr o0rmy-6, -v48znnr8 ukc6u ions in 5.0 s. What is the perioky 48mcfb z0b8h nurvr6rnok 0,n6u--d?

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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 frug cjxiks0c )1 9b;ma3ee end of an ideal spring of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy ofcgciaks1)mj0 x3 bu;9 this vibrating mass when it is 0.30 m from its equilibrium position?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a spring of spring constant 20 N l4fj u+1yobp+ji+5in z5p7nyde)h o6/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. +e7y po o juhb1+p564ljzfn+ndi5i)yWhat is the total energy of the system?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass undergoes SHM with ampn0dy0m xu *id9.avk9jdl8z j7litude of 4 cm. The energy is 8.0 J at this time. The mass is cut in half, and the system is again set in motion with amplitude 4.0 cm. Wd. jz 8dav7xjydu0*li99nk 0mhat is the energy of the system now?

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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 o,rzhuv ry k;e 7tf,+t mc0y7o+f spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion rrmh 7 fo,0;7e+t, czvyu+ykt and has a speed of 1.5 m/s at the equilibrium position. What is the amplitude of vibration?

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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 4ciby,jdh x)yc;6a4jl ekq7cs m:9; jspring 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 equi:j 7 cjhm 4s;9xc)qyibdc j ak6yel,4;librium position. At what location are the kinetic energy and the potential energy the same?

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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(4goq/t :8cj at:t +rpocg dl7sq7qr. of spring constant 50 N/m and set into simple harmonic motiqoqgc jr8drt t(4 / oq:pct7ls7+a:g.on with an amplitude of 0.10 m. What is the total mechanical energy of this system?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached t temm3 lr;md mzt0+f,edpznb w:*,j07o the end of a horizontal spring of spring constant 50 N/m and set into simple harm,pd 0tfrwl: ;t0j,7dm+ m*3zb emeznmonic motion with an amplitude of 0.10 m. What is the total mechanical energy of this system?

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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 ofl xwy-)iw; +uutkq*(ghgoh-/ an ideal spring of spring constant 20.0 N/m with an amplitude of 0.250-g ;wo -)k/ +glhiuxtwy (hq*u m. What is the maximum kinetic energy of this vibrating mass?

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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 cmmu q 7;7n0smtp from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been displaced only 5.0 cms7 m7;qp mn0ut and then released?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached3x k0hlowtkt3ukky1 y q ,.i8) to a spring of spring constant 10 N/m. The object is disp wlt.1yu yk ki)3to3xkk ,0q8hlaced by
5.1 cm from the equilibrium position and let go. What is the period of vibration?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached d1 jq+sw,r g3jwa)ag(to a spring of spring constant 10 N/m. The object is displaced bywa1gj 3w )g(rsj ,q+da
5.1 cm from the equilibrium position and let go. What is the frequency of vibration?

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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 Nx r)crim-2ho *x9cry-8h-neg /m, displaced slightly from its equilibrium position, and released. What is the frequency of * -o8-9ih2nh m rxxcr-ycger)its vibration?

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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 fif ov20 o*uv m29vvgj0requency of 1.27 Hz when disv *9iv vmg0j0of 2uvo2placed a distance of 2.0 cm from equilibrium and released. What is the maximum velocity attained by the mass?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two masses, A and B, * qdcz877 qh (. pzcxxdd+grc,are attached to different springs. Mass A vibrates with amplitude of 8zg.,7(q+ zq hc xr* c8dc7xdpd.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5.0 cm at a frequency of 16 Hz. How does the maximum speed of A compare to the maximum speed of B?

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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. In4dl(u*vq5 agi 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. Ciq(d 5a*4vgl ualculate the period of oscillation.

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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 stretches o3blitw,3)w1k9a crq the spring 2.0 cm downward. The mass is then pulled an additional distance of 1kt,clb3 ao1 i)qw3w9r.0 cm down and released from rest. Calculate the total energy of the system.

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is su.a f) z -i-eu(cg: lt;1yc gskmgv8zb9spended 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 ayzb kl8.ctgz1uc:9-es(v m-f ia gg);nd released from rest. Write down its equation of motion.

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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 posdw oysq .5z +md*q12ozv7env,dt7 lh wj69l-j ition versus time equation7jqv5 1,ww dm6- +q9jv2oy lnezzhl.t7dd os*:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the amplitude of vibration?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motion obey1ocm/1q;ap d8s;ug2tu 9 o jzts the following position versus time equation2t1d1u op8u ojt; z m9sc/;aqg:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the period of vibration?

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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 versus tif ::2/wd32zkwca vu zwme equat:2faz d/u3 v:zcw w2wkion:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the maximum speed of the object?

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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 springwh,44x *vgdr5 qp uj*mm6eifu/2um m+ executes simple harmonic motion according to thh5vurq mufw ed+*m*4u x2pm, 46g/mije equation $y = 0.50 \; \sin (18\pi \times t)$ where y is in meters and t is seconds. What is the period of vibration?

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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 yx211t m x5kb;eb)svlconstant of 20.0 N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 cm. (That is, the spring is stretched by 10.yx5e s);1v1t b2xlkmb00 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.
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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) What are itx n-sn bg*(+cls frequency and periodln bcn*sx(g- + on Earth?

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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 1;k4o 9dmmva;/ipj (5 rhfp jqEarth?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum has a period of 2.0 s on Earth. What is itsq a:)b kgwpv0 lo61f2b length?

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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 bw d/8x+e;gzk long. What is its period on the Eartez/bgw+8 x;k dh?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock i k e1t7v:.jbbf:ji6, ddgy3dns 1.0 m long. What is its period on the Moon where the acceler,dvg dkyb1e :d6 ijjn3t:f 7b.ation due to gravity is only $1.7 \; m/s^2$?

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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 mass 02sz32pusm)u-my ofg 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 m-zs 2u )gs03pufmoy 2if a 0.50-kg mass (same diameter sphere) had been attached to the string instead?

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81#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A simple pendulum consisting o+jj(kjo9 g9s3ads8 w:, mv pkrf a 20-g mass has initial angular displacement of 8.0e. It oscillates with a periodj ajr+: kmsg93oj w9v8(dsk p, 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?
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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 wave4j5vbri (i,4 6akpfv8xvvsaet:7c 7e at a given time. The frequency of the wavv7sjva(i k7b6,vt xp4:a5fe4 c8 reive is 120 Hz. What is the amplitude?


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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 freffj:(5 5 /eaoejau2f jquency of the wave is 120 Hz.aeo/fff e5 (jj2j: 5au What is the wavelength?


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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 tivof1kiwgt/iuce y/0sr e51i-o ;5n1s me. The frequency of the wave is 120 Hz. What is the wfsuve1s5cwr 0n/ /5t g1oi -ii ;ekoy1ave speed?


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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 hr+py 5(lke0cs2 my 7reas a period of 6.00 ms?

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the period of a;:fn;-hte;t 8c kpui nh/ 3bwz wave with a frequency of 1500 Hz?

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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 o7bq iiw.u y)wlml+: 0mf 12 Hz and a wavelength of 3.0 u7)w0wlly m+:m. iqbim?

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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 m and a f,yk*sc os2 9i5avjon, y/f v0kn +m)cmrequency of 12 * cfok 0y9csi+jvavm5o/,ks,n n)2y mHz?

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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 waoht *ol(6(glkt :)qxpve traveling at 1400 m/s?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A piano string of linear mass density 0.0050 kg/m is under a tension of 1350 Nwg6)l7 dr f(ga. Whf6 gwalg7r)(dat is the wave speed?

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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 und /+)mhv1 :a3hihahdy--z ehks er a tension of 180 N. What is the velocity of propagation of ihs h-h:-/z1k+ avdeha)hy3m transverse waves along the string?

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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 do*u m3a0nhl :jw:zc/ec 4gkku+ wn a 500 m long wire whose total mass :43lk*+z 0c n/egwjcam kuuh: 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.
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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The velocity of propagation of a trankzw9/y* 8pi rnsverse wave on a 2.0-m long string fixed at both end/yi n*8rw pz9ks is 200 m/s. Which one of the following is not a resonant frequency of this string?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a guitar string has a fundamental freqa;8x4pzo8 rm quency of 500 Hz, which one of the following frequenciqoma;xz8p8r 4 es can set the string into resonant vibration?

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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 segmenr39*z z ipds)yts in a standing wave driven at a frequency of 480 Hz. What drivy sr39d*)z pizing frequency will set up a standing wave with five equal segments?

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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 frequencivs,6t /h t7+rvk bg1zy of 12 Hz with a standing transverse wave pattern containing 3 loops. What frequency is needed if the standing wave pattern is to contain 6/1sv7zb r,khtgti +v4 loops?

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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 und7uip *woydtbh)79j7l er a tension of 20 N. What should its length be if its fundamental resonance frequency is 220l ho7dp9y* iwbj)77tu Hz?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Find the first three harmonics of a stringlfg h1* 9fq;tf of linear mass density 2.00 g/m and length 0.600 m when it is9*hf1qt fl;gf subjected to tension of 50.0 N.

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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 stri ziwfi)22a1 fgng vibrates at a frequency of if 22awf )giz185 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.
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