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习题练习：Physics Unit12: Sound
本习题练习来源于题库网 (https://tiku.one)，是在线习题练习的打印版，您也可以访问本平台网站(https://tiku.one/)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://tiku.one/test70.html
 作者: admin  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 false statemeahtjsf2ytl.c ,i*8o 98or1ojnt?

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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 conducted fastest througle,cb+ q*b5a jc061x xtxer.4 u+iafih

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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 l)/ 4 ga9c o/mvhhcz oxc42rb/sound 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 fjbww(tjm);4 increases, what happens to the velocity of sound? (Assume that all other factors r;wmjt 4wjbf( )emain 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 oftlz ivrp;s/ ;*vi8 a4y a 400 Hz sound, the velocity of a 200 Hz sound through air isl4 rypit;/av;zv8*i s

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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 wa4u waxz) tpvlu c;65h6velength of a 200 Hz sound in)c v6utax;p 6l4wzh u5 air 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 frequencies greattyszau gozd3-+o6 6wf: c/rq-er 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 than 20 Hz ar;+ri-4iglumvj 0lvn +e 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 emitting waves uniformly in all di aj*bkuhsl(1aws1;v ; 9z(db xa dik3;rections. If you ;d*lx ;z ( asda iasbu13hwk(bv jk;91move to a point twice as far away from the source, the frequency of the 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 diver(ph3x5v- lrg 8 moeyv0ging waves, intensity is proportional 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 from the source is I. What is*f9/(isx a-jbzp .zkm the intensity at a distance 2d from the sourc(a9jf zx* z-i.bkpms/e?

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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 sound source that is,lx .vhjg 6tm) radiating equally in all directions. What happens to the intensity of the sound? I6jgtl )mhx.v,t 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 equally luh:td49m. u yin all dir:.u dt4h9myulections. What happens 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 .71jhwu dtv+ hsound 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 sevyh( h4gg7 )g.6bsuhpeaker emitting a pure tone. What characteristic of the sound increg7gey.ush) 4hb( 6hgvases?

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What determines "loudness" of a musical n55ng :y eio1kbmih 3k9ote?

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What determines the "pitch" of a muse*k cwnt;.m g9zr ;x5nical 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 air into waqlbv3b(0 ,u zh uj*v(nter

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Pressure and displacement wavein:,jbt)bwe;*pry ja 6+4sv as 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 wave g mzkkj w;c8gp+;/lklj- ym).zenerated by the guitar as a result ofm+l8-p kzj kl)kzg wm.y; j/;c this vibration. What do these two waves have in common?

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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 i*fuot2 n*yf(2, xbxce ,nshr idc+,b0 s open at 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 are the wavelengths of the threwq0kn.r,ky kv oo-.7 w.lk5pz e lowest tones pro k.5qkzw .vywk, nk-.po0o l7rduced 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 lengtykp2mdc+2 hvqq )q3n*h L is 200 Hz. Which one of the following frequencies will not q vq hd3*)22cymp+ knqresonate 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 L is resonating at its fundamental frequency. (w7u0mngcfp,em7 (t o Which statement is correctumco nf0g(e(wpt,m77?

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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 aw i8(*l/pkse lt one end and 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 are the wavelennsayuyc 9, 5/uua;nf -podre3/ )k 3nogths of the three lowest t/u)nu/ nue5ycnopk s a fa3ro93yd -;,ones produced by 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 closed pipe of length L is 20bgh s g51ref2nyhb9( 40 Hz. Which of the following frequencies will not resonate in that b9 f(n4rshygh21e5 g bpipe?

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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 at its k gufl+b9b ;q)fundamental frequency. Which statement is correct?l;9 bfqug )+bk

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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. Eo3kv pr72e -w53k rtc t+m:kjyach speaker produces a trekjc 72+3wko-p3y5r m:k vt tone with a frequency of 200 Hz 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 should h jhs cktj.c 9;m,s-4hqg)cx e1ave

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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 together and a particular mivfl qg4i( +ft* nlzl9)5x)1y z m3bsbeat frequency is heard. What happens to the beat frequency if the frequency of one of the xmzgq3n4m i1b5s9fltzv* )f+ (lly) itones is increased?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Doppler shift exviwd :;zl.o0 tplains

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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 observerqqe,:77/oe6fdwog *vf1 qk qq. The frequency heard by the observer isq/qqqf * eqeoo,f7v:g 6kw1d7

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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 frepw 4 /4:ozsb,gu m pmxngq4t:.quency heard by the observer iss 4g:mu:xztbp.wq4g4/om ,pn

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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 MAC hgb7h):w06 qc 8yxyncH-speed, its half-angle will decrease by a facq:6gynwy)7 c8 xhh cb0tor 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 sound of frequency 45 kHz in air is 352 m/s. What8bstsw v+1s 6v is the airswv vs6 b1st+8 temperature?

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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 at eh.h;h0 .xglw8ub/;yp j(vli $0 \; ^{\circ}C$ 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 sp ,ma(wpd* u 8b:gwk1oweed of sound in air is 340 m/s, a bat emits a shriek whose echo reaches it 0.0250 s later. How far away was the object that reflected bacg(*k a:o1d m, uwpww8bk 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. The tem x3xvwh r1qe,07 vqn7wperature 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 see qmxn7jq+ 0a:sing a flash of lightning, the distance to the lightning strike is n: +majxq7s 0qabout

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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 cl4rlu/kfm+*d;d btf j-4jb j7 xiff 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 well and hear the splash o rdsr2bwtdty 5 hi o(. gfs(tci :)t*;,or03m2.5 s later. How deep is the well? (Ignore air resistance, and assume th3 w,ttm oifb)h2 rit( o :(s;*roddgyst.0rc 5e velocity of sound is 340 m/s.)

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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 2anprf) ,) 7k9o;c8xezvb(h nmxggm6of a sound wave of frequency 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 airv/8c d,ko.nvor ( 3gpj at $23 \; ^{\circ}C$ 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 zx ngpi 2(xe.8a sound with intensity $10^{-3} \; W/m^{2}$?

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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 70c3zf xjg9zi7e0vi44 -fwi. ln-dB sound?

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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 intenzqhrz7q0eh. h hh9 22tsities of two sounds with intensity levels of 70 dB an 7h0h2thzq 9r z.hhe2qd 40 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 intensiiio p0o4 f.ayz )a k/xw9kk(/wzv4j6nty len vj/4(wi)/9pwk oo6zz4fxk 0i.yk aavel generated by one 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 of 6.0 m from a source that vr)3 m3v/fp gsis radiating equally in all diresrv3 f m)p3vg/ctions 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 ac of3ol.m 11fh source that is radiating equally in all m.h1oo1fflc 3directions is
$6.0 \times 10^{-10} \; W/m^{2}$. 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 y9lz, q qmarfiam2 2h2vxdoh. i63-1/ dwfk0oof power, which is assumed to be uniformly distributed in all directions. What is the intensity level at a distance 5.00 m from the d-. iymxo a1vh9f63o,dqr2qzk 2id2 h/al 0fwmog?

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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 65 dB at a distance 5.00 m from a barkv,/ n9mbo/a gfing dog. What wouldf9bg,a o/ mn/v be the 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 sound source the f9u /pt vh-ou/b w/cv,intensity level is 60 dB. What is the intensity level (in dB) at a poin/9c/-u/b f wvou,htvp t 2.0 m from 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 is 95 dB. At what distance o 6d u5gyw;+4 s*l5*zlqtpr kswill it grltu;lo*+z4 p*s ysk65wd q5be 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 complex tone has a frequency of 1200 Hz. What is txk -c3 (an* 2fv0xx jemn0yzv1he frequency of the fourth j(0f3*xm1n0cnkea2y xx zv -vharmonic?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of ther; ht nfh02.jd third harmonic of an open pipe is 900 Hz. What is the length of f0d2rj ;hhn.t the 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 lengcr0r4)lcsj w 7th L is 400 Hz. What is the frequency of the lowest tone that will r74s)jrc cw 0rlesonate in an open pipe of length 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 length ofy5 ,cozk rbo54iqfq 36 0.80 m. If the velocity of sound in air is 340 m/s, what is the frequ5ykif obzo5 c3qqr46 ,ency 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 aqy/s8 3)kgu sc room where the 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 ti6ec*+bfr ;a7bf5 l uin a pipe closed at one end is 330 Hz. What is the frequency of ta t*i6 c75lubre; f+bfhe third 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 oh.te9+bu i o8jn one end that will have a fundamental frequency of 60 Hz on a day whenoj+he ut9b 8i. the velocity of 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 c5uvu83i( wl owhere 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 wherh5(z fb z(f+cxe the temperature 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 when the speed of sound in air i jwtr*3d4i8i.(y3 vb z1ayv diw8aq4 rf*mkh /s 340 m/s. What is the b (f y1.mwq4itkrdd3ya4r*v/wiz* 3h8 vi8 ajfundamental 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 othekcu vlg99(ze5r is closed on one end. If the fundamental frequency of the open pipe is 300 Hz, what is the funkgl u9zc(ev59damental 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 inbdodwr3yur 8o 0w;p0 2 air where the velocity of sound is 340 m/s. Hpdo8 rw0bw ;d3 uo20ryow much farther back would source 1 have to be moved so an observer in front of the sources would hear no sound?

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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 side by sidq e+u;, 00go3ufzst 1uypz/iwe and driven by the same frequency of 500 Hz. If the distance from a person to o ouqs+ z0gp1/;fuitz,0 y u3ewne 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 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 frequencies of 440 Hz and 444z08(z5sa: 2zg rbi wc ja3;kry 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 tu a;tndi8 f,vj-6w zw8pning fork to tune the frequency of a musical instrument. If the tuner hears a beat frequency of 2 Hz,6n;8ivj,wftza d- 8p w 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 by twoqg-ty5o3vura (,n +b9 ps xrbyjev/x-.i/, fj horns are 6 m and 7 m respectively. What beat frequency is heard when the horns are sounded on a day when the velocitfr.q pbb+ j(ixyn3/, ovjx,agv- y-/se 9t5ruy 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 strings on two violins in an orchest uax 0u2v79wakra are found to produce a beat frequency of 2 Hz when a frequency of 660 Hz is played. What percentage change in the tension of one of the strings wouvxka70ua 2uw 9ld 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-fd3uj 9 a-x2iwHz sound source at twice the speed of sound. The observer hears a a j9 -xuwf23idfrequency 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 s vz3g l,x80v;ts9 pvgz4hu,6u* noqx of 1000 Hz) approaches a stationary observer at one-half the speed of sound. The observer hears a frequency o g uv uv6l q0szvhon zg,p*3,;stx9x84f

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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 )6mxm;3ak4z r yju *xd30 m/s away from the source, what is the frequency heard by the obse;j*)6 zdry m u3xxmka4rver? (The sound speed 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 v 2r.8io z/6 y1ssrhu);gmrrfj,y5hj day when the speed of sound through air is 340 m/s. The car approaches and passes an observer who is standing along the roaymjryji . su2 )/s;1r z8fhv5gr roh6,dside. 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 stationary observer when a train approaches w;z 7og zx0h7bgith a speed of 30 m/s. The frequency of the train horn is 600 Hz and the speed of soundhxog; 7bzzg07 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 its 400-Hz 0kmi5tgus44owhistle. Take the speed of sound to be 340 m/s. What frequency do yo4 kt umi540sogu 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 tra:f pg9qgwq*d: in blows its 400-Hz whistlg :w g*pq:qdf9e. Take the speed of sound to be 340 m/s. What frequency 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 from you at 120 km/h. The train blows its 400-Hzr2lb4e qvh3vxj+t68 e whistle. Tj2t 6qhvelrxv b34e8 +ake the speed of sound to be 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 froa fg lsbnkvzhp*- 4k)m6j o(71m you at 120 km/h. It blows its whistle, and you hear a tone of 400 Hz. Take the speed ofvs4p)7(kogk*n6hz - 1fa lj mb sound to be 340 m/s. What 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 speed0aujer,2 )y4mz z:ng b of sound in air is 340 m/s. What is the frequency heard by an observer if the observer is moving away from thnz42zy, jb u mgae):r0e 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 spe)e1 .c8g-vtm8 icrost ed of sound in air is 340 m/s. What is the frequency heard by an observer if the observer is s .rg8tcv8oc i 1)m-etapproaching 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.7v s961qqt .snlc:,ogv a sgc object. A 40-kHz signal is sent out, and a 42-kHz:s6g 7l.a9 qt c. vgovss1,qcn signal is returned. 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 i77-4hm*; trtnkguptshock wave produced by a supersonic aircraft is $60^{\circ}$. 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 coni47y 4 1 nseb4;cskuwyfcal shock ws;bu 1yynef44 kscw74ave formed?

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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 from the United Statqu)r9w goq p/ czb8,ex:46vs pes to Europe with a Mach number of 1.05 wherqze9p)sugobq6 r:c 4,pvx 8 w/e the air temperature is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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