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习题练习：Physics Unit12: Sound
本习题练习来源于51fly国际课程 (https://51fly.win)，是在线习题练习的打印版，您也可以访问本平台网站(https://51fly.win/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 70 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://51fly.win/test70.html
 作者: physics  发布日期: 2022-09-26 09:56    总分: 87分  得分: _____________

答题人: 匿名未登录  开始时间: 22年08月07日 09:59  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  
  Which of the following is a fwh m7abedpb70y (tl8 sb(5i x-alse statement?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In general, sound is conime . t25attke.)n1xrducted fastest through

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the speed of sounqy/sxzv y3+6n- 4h- p(lnthoq d in a steel rod?

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As the temperature of the air increases, wha 1bjgkjc lj7kw7g1o7g 8;wub7t happens to the velocity of sound? (Assume that all j7o 17 kgkwb7 bcwj1jug78;lg other factors remain constant.)

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the velocity of a 400 Hz sound, the velocity of a 200 Hz sound.d)/ ii /pp gsqwo;gz8 through air isg/ .gzp)id;o/ 8 spwiq

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the wavelength of a 400 Hz sound, the wavelength of a 200 Hz soun*w lp.px+4j ;jvd+bjv d in v*.4 +dj;w +lbj jvpxpair is

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sound vibrations with msf;bnntcon-j+ bx qf32 o-qw .fv1* ;frequencies greater than 20,000 Hz are called

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sound vibrations with frequency less thaqbla0qq 3 l6 ha-v.7cnn 20 Hz are called

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Suppose that a sound source is /y7gip5 pbxit5,2 e cxemitting waves uniformly in all directions. If you move to a point twice as far away from the source, the frequency of th7t xppib,x5e i52c/ gye sound will be

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For spherically diverging waves, intensity is proportcx7k m ;a*j,fuional to

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity of a point source at a distance d frohesbs m,9 azz od3p;22)xy*bnm the source is I. What is the intensityom2bszhbs3 e*ydx ,z;na2p)9 at a distance 2d from the source?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You double your distance from a sounda3zz(.+l icmt source that is radiating equally in all directions. What happens to the intetcmaz zl(+.i3 nsity of the sound? It reduces to

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You double your distance from a sound source that is radiating equally6tb(zt0 s ru/ h,r)djm in all directions. What happensd urmbr( 6t h),0z/tjs to the intensity level of the sound? It drops by

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following increases as a bn9cr fb)h n/5sound becomes louder?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You move slowly toward a speaker emitting a pure tone. What characteristic oht4f0 vua4+ tj 6zw1ccf the sound increcu440h a1cz v 6ftwt+jases?

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What determines "loudn,9n( mwj(x6r al hx/azess" of a musical note?

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What determines the "dvj r+y)mq r;+pitch" of a musical note?

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When sound passes from ainrka.nrtu.5. r into water

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Pressure and displac2hsd,ws w- ;rvement waves are

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider the standing wave on a guitar string and the sound weubhq5 5h s.8/h1fjlvu;p ;odave generated by the guitar as a result of this vibration. What do these two waves have in cojhb 1sq5ul8 vpd5uo/e. fh;;hmmon?

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a resonating pipe which is open a(y s+ m4.udivit both ends, there

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider an open pipe of length L. What agkj wq ,( ;e5vbjr4o:vre the wavelengths of the three lowestq(5j,ko vvrw:eg;b4j tones produced by this pipe?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lowest tone to resonate in an open pipe of length L g3l8 c- 1uu8:lecyqtdis 200 Hz. Which one of the following frequencies will not resona -yq8 :decgluu83 tcl1te in the same pipe?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An open pipe of length Lxzwl;80 .zep i is resonating at its fundamental frequency. Which statement is correct?pi8;w x.e z0zl

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a resonating pipe which is open at one end j30pl bkn;xj o4hx q8lohjl 7 +1+xf7sand closed at the other, there

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a closed pipe of length L. What aremawj:4g co vnw:0+bups ), 6pi8,cwz,hyjjg 7 the wavelengths of the three lowest tones produced byc h: gm 0pwc,g 8w:pnuz4jb wsayovi)+6,j,j7 this pipe?

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lowest tone to resonate in a close,na5 y5u/em7e x3t htmup)( dsd pipe of length L is 200 Hz. Which of the fu(n, sat/tm7 5uy 5xm ph3)edeollowing frequencies will not resonate in that pipe?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pipe of length L closed at one end is resonating atxxfj*y c :6r 9h9n9lze its fundamental frequency. Which statement is9y6l 9 fn*zhx:9 exrcj correct?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person stands between two speakers driven by the same source. Eym7bm6b7k))u8 yfm fh4yc mw4 ach speaker produces a tone with a frequency of 200 Hy bmf4m7kchfbuymy 68)7 w)4mz on a day when the speed of sound is 330 m/s. The person is
1.65 m from one speaker and 4.95 m from the other. What type of interference does the person sense?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to produce beats, the two sound waves sho h+7v+w(eyp-kci px j2uld have

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two pure tones are sounded toge lh.prstsc+9 (4k 1oxzhex8ge(q)9n uther and a particular beat frequency is heard. What happens to the beat frequency if the frequency of one of the tones is increk8ex9 ulxs cp qe+hnsozt(.94)( 1rghased?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Doppler shift explai5wz+yuvel:dd1zsr)/ 4ors 9a ns

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A sound source approaches a stationary observer. The frequdd8nzql38c vuuh8,ppf/9 r x7ency heard by the observer 3 v8dzcp,89rxdnqhfu78/pul is

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A sound source departs from a stationary observer. The frequency heard by the o6ih3 arb0q x0gbserver isb x36rq00higa

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a jet plane were to double its MACH-speed,8pd5.vct-zw e its half-angle will decrease by a factz-we.dv5 p c8tor of:

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The speed of an ultrasonic 5mzuust/0)q w sound of frequency 45 kHz in air is 352 m/s. What is the air 5 qwms/t)u0u ztemperature?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the ratio of the speed of sound in air s*3r li umpz 8vs-5px:)j.f(9yjh fbbf) x0go at $0 \; ^{\circ}C$ to the speed at $100 \; ^{\circ}C$?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  On a day when the speed of sound in air is 340 m/s, a bat emits a shriek whon0i: lwq9st( xse echo reaches it 0.0250 s later. How far away was the object that reflecqt9:xw(sli 0n ted back the sound?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You shout at a cliff, and hear the echo in 4.00 s. uhxeiw,h,.wwgoe hi67 7 n8-*gwwc1b The temperature is $0 \; ^{\circ}C$. How far away is the cliff?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you hear thunder 5.0 s after seeing a flash of lightning, the distancee;j;i)nl-qo b i: :y(7pbhnum to the lightning strike is aboj:m-bn q;)yoih:e( uib7; lnput

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An echo is heard 2.0 s from a clif ea.1g x:dfv,hf on a day the temperature is $15 \; ^{\circ}C$. Approximately how far is the cliff from the observer?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  On a $30 \; ^{\circ}C$ day, there is an explosion. The sound is heard 3.4 s after seeing the flash. How far away was the explosion?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You drop a stone into a deep wep6 m*2zh-quw pll and hear the splash 2.5 s later. How deep is the well? (Ignore air resistance, and assume the velocity of sound is 340 m/*hm-qp wz6pu 2s.)

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The wavelength in air of a sound wave of ph*8q4n0pd o gfrequency 500 Hz is

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sound traveling in air at s r+wkw0m;ss.$23 \; ^{\circ}C$ enters a cold front where the air temperature is $2 \; ^{\circ}C$. If the sound frequency is 1500 Hz, determine the wavelength in the warmer air and in the colder air.

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the intensity level of a sound with inz*gl h*8 z)e yt-vw9oqtensity $10^{-3} \; W/m^{2}$?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the intensity of a 70-dB sod 3fh 6640lf)*)qj biv w ht/f:tsboqsund?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the ratio of the intensities sw:q /wca1bbv,p* b0bmiz79bof two sounds with intensity levels of 70 dB and 40wvamb91*ip z/s:b0bbq w bc,7 dB?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity level by 15 engines in a garage is 100 dB. What is the intensity cugh /h0v*,or:fjam gg8e-tbh v; (b0level generated by o/fj8:0tue;b b -g0cv g,havh*m (o hrgne engine?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity at a distance o .g5w0dqih +vgzfv33 if 6.0 m from a source that is radiating equally in all diriizv0hd3g .3+ fq5v wgections is
$6.0 \times 10^{-10} \; W/m^{2}$. What is the power emitted by the source?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity at a distance of 6.0 m from a soup 4s.u y8c 9r*eozk4pvrce that is radiating equally in all directions isspp4*e4 8 ukr.9yocvz
$6.0 \times 10^{-10} \; W/m^{2}$. What is the intensity level in dB?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A barking dog delivers about 1 mW of power, which is assumed ton4be9z)scd3s 0x4sf fmq d41 s be uniformly distributed in all directions. 4 dqsszf1f4em b s0s)3cnxd 49What is the intensity level at a distance 5.00 m from the dog?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity level is 65nztju+;l.4 +/ arzu1ze zu, fa dB at a distance 5.00 m from a barking dog. What would be the, zl/1++ej 4 zaz.azruuutf;n intensity level if two identical dogs very close to each other are barking?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At a distance of 15 m from a souc ,l. 4( *sba*mdo vhne:(vtecgouj :qc+,fh,nd source the intensity level is 60 dB. What is the intensity level (in dB) at a point 2.0 m f .* fc *u cgnm:qtadc sb,h:+vho(v, j(eeol4,rom the source? Assume that the source radiates equally in all directions.

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The sound intensity level 5.0 m from a point source zu:*)e3s) evxhypoc (is 95 dB. At what distance will )*e: cuzveh()poy3xs it be 75 dB?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The third harmonic of a comple+h 3nqe00fbl bx tone has a frequency of 1200 Hz. What is the frequencf0 h +n0bel3bqy of the fourth harmonic?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of the third harmonic of ac xk 6l8 fb4cp56-cpban open pipe is 900 Hz. What is the length of tccafc k-6p5l46bxp b 8he pipe?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lowest tone to resonate in an open pipe of length L is 400 Hz. What is the /l-wu2w;4h, qyvt7 plst ,9s+gugfqz frequency of the lowest tone that will resonate in an open pipe of lt4ty/uwglw+z7 -ghs2up q,9f,s; lqvength 2L?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An organ pipe open at both ends has a q7c50u;a7wh 1nstljk( 8t dyblength of 0.80 m. If the velocity of sound ic1 a 0l;5uq7 w7sbttkn jd8yh(n air is 340 m/s, what is the frequency of the second harmonic?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.00-m long pipe is in a room where theq45qbhz -w- us temperature is $20 \; ^{\circ}C$. What is the fundamental
frequency if the pipe is open at both ends?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The fundamental frequency in a pipe closec9*2 xtcxz6wdd at one end is 330 Hz. What is the frequency of the thc 6xx tc2*dwz9ird harmonic?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the length of the shortest pipe closed on one end that will have 2brl6qdo9m(n1 r o t5da fundamental frequency of 60 Hz on a day when the velocity oft126don 9rdq rl 5b(om sound is 340 m/s?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.00-m long pipe is in a room whzmnvd z,8+am/aa9petc0t- h0 ere the temperature is $20 \; ^{\circ}C$. What is the fundamental frequency if the pipe is closed at one end?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.00-m long pipe is in a room where the tempermgc+nlepxb-f+5w lrk9kq *8g (2 er0rature is $20 \; ^{\circ}C$. What is the frequency of the second harmonic if the pipe is closed at one end?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A closed organ pipe of length 0.75 m is played whe384p dsg6i3i juyjiycr)m 7 (vn the speed of sound in air is 340 m/s. What is the)73ygj yv 6ujdc8(r i3s4iipm fundamental frequency?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two pipes of the same length: one is open and the other is close * apdb-0fh0yx6jtq8q (fj4kmd on one end. If the fundamental frequency of the open pipe is 300 Hz, what is th64m0yqbj* dapq8 0f t-xj khf(e fundamental frequency of the closed pipe?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two adjacent sources each emit a frequency of 800 Hz in air where the ve8qt:w.f 0pjdr locity of sound is 340 m/s. How much farther back would source 1 have to be moved so an observer in front of the sources would hear no sounpj :0ftqw.dr8d?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two speakers are placed sidr/qwqc rmze 0u4 r;,)ke by side and driven by the same frequency of 500 Hz. If the distance from a person to one speaker is 5.00 m and the person detects little or no sound, which of the following is a possible the distance from the person to the 0wm)qq cer u;r kr4z/,other speaker? (The sound speed is 340 m/s.)

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two tunes have frequenciesn:cwt 0dez97ng6 imvk e4f,c )vlw73h of 440 Hz and 444 Hz. What is the beat frequency?

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A music tuner uses a 550-Hz tuning fork toz/ k oud9xe2n4 tune the frequency of a musical instrument. Ifuz4e9/2n xk od the tuner hears a beat frequency of 2 Hz, what is the frequency of the instrument?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The wavelengths of the sounds produced qke*5r zgya*2 by two horns are 6 m and 7 m respectively. What beat frequency is heard r*q*azy2k e g5when the horns are sounded on a day when the velocity of sound is 340 m/s?

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The corresponding violin strjbt9lp2b9 v8 rings on two violins in an orchestra are found to produce a beat frequency of 2 Hz when a frequency of 660 Hz is played. What percentage change in the t8vbj9 lr p9b2tension of one of the strings would bring them to the same frequency?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An observer approaches a stationary 1000-Hz sound source at twice:zs.b kx3v;vc the speed of sound. The observer hears a frequevvbs zx.; k3:cncy of

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74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A sound source (normal frequency of 1000 Hz) app qego7ovoq/w:f01w-b roaches a stationary observer at one-half two1o:g7wbvo qq /fe0- he speed of sound. The observer hears a frequency of

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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A sound has a frequency of 1000 Hz. If a listener moves with a speed of 30 m/s v d nkt lhiybu62stg/l:7*i6db:.d h8 away from the source, what is the frequency heard by the observer? (The sound speed6ni 2l*dy6lt b.h7dtbk/dsiuvh g :8: is 340 m/s.)

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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A police car has an 800-Hz siren. It is traveling at 35 m/s on a day when the 3dotp;b14ucnjpz9 izr/u 7 l :speed of sound through air is 340 m/s. The car approaches and passes an observer who is staujtlrioz47c;1np 9 bd3up : z/nding along the roadside. What change of frequency does the observer hear?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency heard by a stationar nac3c dq: n3xsp1k(i2y observer when a train approaches with a speed of 30 m/s. The frequency of the train horn is 600 Hz and the speed 2c:p3qn d1nc(3isa kxof sound is 340 m/s.

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A train is traveling toward you at 120 km/h. The train blows it:-z epndkt6u4 s 400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency do yp4dkut:n6ze -ou hear?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You are moving at 120 km/h toward a stationary train. The train aut9kw + oge(pg 1wj,:blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What fru9jpo wwegta(kg : ,+1equency do you hear?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A train is traveling away f n1)fzv9 n0t,rj (-tbnkucs-trom you at 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound to b v0nunn9f1tksb(z-t rtj-) ,ce 340 m/s. What frequency do you hear?

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81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A train is traveling away from qd+.mu.7ta8zm*v4pfey.ixi ut3 , rryou at 120 km/h. It blows its whistle, and you hear a tone of 400 Hz. Take the speed of sound to be 340 m/s. W.a+edr * mqi p..ftzt,ruiyu 78x4mv3hat is the actual frequency of the whistle?

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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of a train horn is 500 Hz. Assume the speed of so d18oy/5sn8gh hfsk/vund in air is 340 m/s. What is the frequency heard by an observer if the observer vhkyof/ 18s8g s5hn/d is moving away from the train with a speed of 30.0 m/s?

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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of a train horn is 500 Hz. Assume the speed of sound i:2wct,1f6gj po m-kw yn air is 340 m/s. What is the frequency heardw6f:p- cjg,y mk2to1 w by an observer if the observer is approaching the train with a speed of 30.0 m/s?

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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sonar is used to determine the speed of an object. A 40g+ci do dej4fi56x+d5e gi8 ;s-kHz signal is sent out, and a 42-kHz signal is retugje55e 4s6ddoxii gc 8 +dif;+rned. Assume the speed of sound is 345 m/s. How fast is the object moving?

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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The half angle of the conical shock wave produced by a supersonic aircraft .6(je2b xpblhis $60^{\circ}$. What is the Mach number of the aircraft?

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A jet flies at a speed of Mach 1.4. What is the half-angle of the conical shocqtzrk-v6 io4. k wave formed-o. r64 kztivq?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Concord airplane flies fro cbd81twy:8.i3kl fo om the United States to Europe with a Mach number of 1.05 where yf t3ki8.d lc81 woob:the air temperature is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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