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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 s/fs30c2*finc1catj ftatement?

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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 condu8 yp*iov7g7uycted 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 sound i xnj7ds5d9n4 bn 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 th /fenmho .b+0kmhf)54o(ure ce air increases, what happens to the velocity of sound? (Assume that all other4.) bremmfh+o0 /h( ouc f5nke 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 veloc8u +b v1ksk6m- qstg+yity of a 200 Hz sound through a8k-bt+qkv symg6 u 1+sir is

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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 2n+:e.byjp k asound, the wavelength of a 200 Hz sound in aiy. +k:np2abje r 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 greater than 20,00wv:(ge)kar5f8j+t sf zm 41is0 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 than8,-i7 wlwd xdw 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 emitting waves uni4x wmbyoi6k;3formly in all directions. If you move to a point twice as far away from the source3 b46iyk;xow m, 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 diverging waves, intensitj7;icj aysg 0-bf17mfzbxb26y 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 sourcekei)1 8)momp4/ ev lhh is I. What is the intensity at o/ h))evi1lm4 peh 8kma 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 sound source that is radiatw4k+xph2p c 6t/ vc2yacb :dl(ing equally in all directions. What happens to the intensity of the soundw dp( 4c 2cbtycka/l2h+:x pv6? 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 soundb12 0xa/ f* rlri1ni,tso vo4j source that is radiating equally in all directions. What happens to the intensity level of the ,40ofv /sr1*nax 2ibrjit1l osound? 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 increasiacqj x-y )bo5e;0:bos7uc/ogbu* w2es as a sound 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 u*ld q.w.6zcz+udla4tp u 9c 5a :4brqspeaker emitting a pure tone. What characteristic of the s+ 4c 95z6*razp .la .udc 4qdtu:wqbulound increases?

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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 musical3d3/x(p gw q.e urzw;i 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 "pitch" of a musica hds/8e.j xaeow .lr*)l 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 xvgtzrl. 5k )1 +tr+gwxq7fr q70g:zsair 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 displace6 y+)82kkib6d/clg uq*uyu hwment 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 wa*f.drr5o txnqsc(3v8-zf ff /ve generated by the guitar as a result of thidvron * z3tf8-/xrsf.q5ffc( s 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 is open at both ends, 29( xqhcz9bis a 1.jqvthere

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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 jjxwet 9 z gygvm /;28l2rvr1-of the three lowest tone rv;wl- 9 tj1zx8/g22j vymrges 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 is 200 Hz. Which one(2;c0.kecmkqxo qp v9rnlr6y q* w0o6 of the following em rq*6nv px oq.l;c0 q(rok6920y ckwfrequencies will not resonate 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 fundafo,32:lp+ z gjnp xj)amental frequency. Which statemlg j2)j,3xpznpoa+ f:ent is correct?

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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 and closed at the okqh8/iy )o:ptther, 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 oh70matpl o0n4dj:cb 4arp)-the wavelengths of the three lowest tones p p4)ajm 00o:cphrb adnt4l -7oroduced 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 200 Hz.f h4feqnavha) 2grm.f6m 7q6- Which of the following frequencies will not reshfq m6m6r7-vgha4)qf. f ae2nonate 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 qs, 4iyrcu kw0y7. of6end is resonating at its fundamental frequency. Which ic.r0s 6y,f7qo ukwy4 statement is 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,llcgjvq11k 2wts+: *p cc1be by the same source. Each speaker produces2cj b 1c+ge11lcvt*: w,lsqpk a 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-qm :;wqxu+ wk 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 together and a particular beat frequency i +xmb99varibu ud5w)2(.uuw hs heard. What happens triv( 9+uuuxu2 .b)dbw9a5 wmho the beat frequency if the frequency of one of the tones 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 expla76 *xn 4qdp-y3 ydnnisins

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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 fre oawqlne 5w 8,d:q6(ehquency heard by the obsewh 6nw:(8,eea5 qoq dlrver 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. Tw.g k+.mq( truhe frequency heard by the observer ugr..+mwtkq( is

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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, its half-angle will decrease3p. vqi4j2 u :hcr2d9yg.h wz kf.jnd4 by a fact:zi dvw4dr9kf3uj .4h h2..g2 pjnc qyor 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 frequen*72j 3k 9f ev4xtvtamscy 45 kHz in air is 352 m/s. What is the air temperature?2tjkv x*evt47 ms9 af3

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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 o4l0*l i tdpv 63s9 *drfduxp-uf sound in air 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 34)f bdu) ,*i8tnwdh.as 0 m/s, a bat emits a shriek whose echo reaches it 0.0250 s later. How far away was the object that reflected back the ,f*)db snti 8w.uhad) 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 h lzot 2l7/zydim(h- wuzd wk2f795+gecho in 4.00 s. 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 aft ;(2p1tmjbb p.nwkfh3er seeing a flash of lightning, the distance to the lightnimhjf wb;.n 3kp2 p1bt(ng strike is about

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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 cliff on a d egc9j y,6/ ;vjrwfe2uay 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 andn,efnxpnjr+du y(2 56o2 fx a0 hear the splash 2.5 s later. How deep is the well? (Ignore air resistance, and,uj(+f nnox a2x2e0nd 5fpr6y assume the 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 of a sound wave of frequenm44qvu gxpg8 ;cy 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:8w wbbv o2t5v)w:9 jkaeo r)d 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 a sou0 4xqtah5827y8qecn:bs i zvxnd 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 ads*g m , t1*liv-/v68sgzt txx 70-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 intensit/wh6br wwi f+5s: n)fvies of two sounds with intensity levels of 70 dv+/:wh)fw5f rn 6bwisB and 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;y) b(ov4ve tv 100 dB. What is the intensity level generated by one ev v) e4o;v(btyngine?

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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 is radi0:mcjms iv( g.u/m.)cs2w uckating equally in all directio. ucmsmk 0:c/c2wv( mi.j)u sgns 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 dgfgv/;4ra0xdln 2odbhxmq2wm2 91,wistance of 6.0 m from a source that is radiating equally in alroxdan ;xwhm2qfl2bd4 9v m,2w1/g0g l directions 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 of power, kpco .y6w ;ml u+45um),rtjic which is assumed to be uniformly distributed in all directions. What is,i6uym w ;.4ock+ctj 5m)lr up 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 imjv15v .gsioyy:zy)5 s 65 dB at a distance 5.00 m from a barking dog. What would be the intensity lm5j)goy 1yivv.: sy5zevel 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 intensity level is 60 dB. Wh4y+1izae s 4nnat is the intensenn +1z4 4syiaity level (in dB) at a point 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 distao+ x0bfg2 j*yvnce will it be 75jbfx*2oyvg+0 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. wz 2 ik/oqkka)cq0uyqa9 4s3o/vzo0,What is the frequez9qoz,i3ka ky 2/uo 0s0k aq/qv4cw)oncy 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 harm2 ro716ql.td evpkdx1*m8l u konic of an open pipe is 900 Hz. What is the length of the pip8 71e.xqdroul d*vk6 k1ml2 pte?

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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 i k2pfy5pa*ydzo3l8l 7n an open pipe of length L is 400 Hz. What is the frequency of the lowest tone that will resonate in an o57y8z*a kplfdo 3ply2pen 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 lengthcq2i09vsc+ l j of 0.80 m. If the velocity of sound in air is 340 m/s, what is the f qjc+09lsci2vrequency 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 the te)ej 6b+ qv/nunmperature 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 frequenccl/fg ))yymv8xi3c / hy in a pipe closed at one end is 330 Hz. What is the frequency of thi38h )cgvxyly/ f/m)ce 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 on one end that wil tq;l jy ).yko;dkue(.l have a fundamental frequency of 60 Hz on a day when t. jk qt;(oyeyd;.ukl)he 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 where the temperature isw+rjz s*y,3ss/: ,uw lz u 1r;jgqgas2 $20 \; ^{\circ}C$. 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 zh7.a;l i ic4h s0kgvs pa545jin a room where 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 o+n. k)lv zyy8pmv 5bm3f sound in air is 340 m/s. 3yk vp)85mzvyb+ln.m What is the 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 open2ijv7ul, x m nw*f4ga- and the other is closed on one end. If the fundamental frequefvi jg2-nlu7,4 a*xmwncy of the open pipe is 300 Hz, what is the 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 eachs e/2 9kv2zkgjkovh; ;rr.g( c emit a frequency of 800 Hz in air where the velocity of sound is 340 m/s. How much farther eor;hr gv(v2 2/kkg.s zj;k 9cback 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 sre 3r:u.3msk -8l xwagide and driven by the same frequency of 500 Hz. If the distance from a p 3rmuexw8s:gl 3-k.arerson 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 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 444 Hz.x6fx: -fnk e5t 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 tunin n:-x2wjbl-ty g fork to tune the frequency of a musical instrument. If the tuner bx w- :2ynt-ljhears 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 sounx)/ rkp 4bv-t/e(vqbl ds produced by two horns are 6 m and 7 m respectively. What beat frequency is heard when the horns are sounded on a day when the velocity of skp/4veq bv br-l()xt/ound 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 violics3an 3v 3i3aon strings 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 tensiac3a n3v is3o3on 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 sourcv- ;0:k hy vhptq5)vwfe at twice the speed of sound. wvkvy hq-v:h0;5 ) tfp The observer hears a frequency 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 (normalyk( 7)2vxu guw frequency of 1000 Hz) approaches a stationary observer at one-half the speed o2 (ukxy )w7gvuf 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 movyi lax1r:55 .mx:z 1mvkbda6ces with a speed of 30 m/s away fa6bm vkcd:1zlr ay5xix.:1m 5 rom the source, what is the frequency heard by the observer? (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;-guu(.d r a(*qnm tai m/s on a day when the speed of sound through air is 340 m/s. The car approaches and passes an observer who is standqima .(ad n g;tur(*-uing 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 stationary observer h;pnt 350grx jr*i3fk when a train approaches with a speed of 30 m/s. The frequency of;ri0fn5gx3r j k*p3 th the train horn is 600 Hz and the speed of 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 yousmf)uz7jv21)v3 g q**qp 5:tihb obap at 120 km/h. The train blows its 400-Hz whistle. Take the spe5j h7 *2b 1)pa p:v)3fgbvuqotmqs *ized of sound to be 340 m/s. What frequency do you 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 stationarb/k vqu xx.,)gc-d+ ogy train. The train blows its 400-Hz whistle. Take the speed of sound tc.x-d) k gb/qvxuo ,g+o 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 b mtrnpj07o0/m arvm l )j.(8gyou at 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What fre0 v7jm np go)bmrtlr08ja/(.m quency 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 you at 120 km/h. It blows its whistle, a q a-l6jskegx.c98v7 wnd you hear a tone of 400 Hz. Take the speed of sound to be 3k qx86j .cg9-lw saev740 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 w9s )ab)fe f/his 500 Hz. Assume the speed of sound in air is 340 m/s. What is the frequency heard b)fh/ew9 b)sf ay an observer if the observer 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 ofj2cg90-n 4 ja mwdq/ql sound in air is 340 m/s. What is tl w4- qc902djgm/nqj ahe frequency heard 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.0 8d.h5dhk ejzc03 va kfj+/pz A 40-kHz signal is sent out, and a 42-kHz signal is8f 0hpz d0.hcj5k/ +kv3zadje 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 bmx5 udodu**f/z 7b2 sconical shock 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 thz0.4jz(lwr,gx )z l nee half-angle of the conical shock wave formezr4(ne, jg)zxlzw.l 0 d?

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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 3d:kii: /s6j,eczig v United States to Europe with a Mach number of 1.05 where the air temperature ,3i6 cdk:/sgie:zijv is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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