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习题练习：Physics Unit12: Sound
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 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 followir-e,0,:n h i bbp7kcnhng is a false 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 con3(ivj5l j( sonducted 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 soundwfv.m*qsh5 ;x-aq*pv 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, what happens to th,h ma y(9ut+6ymjhg**vs d4sfe velocity of sound? (Assume that all other+y4d *ufh9g v *t(ysj6sa h,mm 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 ao l8qp(n88tynqm q8vzu(s+ 0p 200 Hz sound through air z(o8( qpvnq+qsypu l8n80t8mis

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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 aatxm lsq *oj:40:dm)nb9t,m+mc k9sm 400 Hz sound, the wavelength of a 200 Hz sound i 0mm9,o)csm: abd9tj4tqmsx+:m*nlkn 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 frequegi)gna+x*n g 6mt-pd-ncies 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 frequencys;ng49zk+0c0adl /kx5edk6j d)op 4u .vtcut less than 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 uniforq 4x(mc;hxf; xh*pcd0p(pg7c mly in all directions. If you move to a point twice as far away fhdf0 hxcxxp;g(*cq(c ;7p4mp rom 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 diverging waves, ijahv4d6;zq,h)u 20 y x oglcd0ntensity 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 r5:bmy z17yj8n7jbbsqwp 7o-is the intensity at a distance 2d from the source?q71 nb8pr75o7ys bm jwbjy:-z

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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 sb1q419 pv(mdba:5u 4l gwre bqound source that is radiating equally in all directions. What happens to the intensity of the soundqga5m lqwe9b p4dv(1r b:b14 u? 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 sc drv9*h:a ts8ound source that is radiating equally in all directions. What happens to the intensit9vr:* c sdha8ty 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 sound becomes loudhkxgg;my:hr2) ilgg4no/l6;x 2 9z di er?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You move slowly towaro l,2pc(oeo6cg inleew,);3 od a speaker emitting a pure tone. What characteristic of the sound increases ;olep wencl3og),ei6(c2o,o ?

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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 musf0 x-bljf87dl6*x-p gqr mtj,ical 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 musns nsw(sw)( /rical 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 ai+st,,yuwc+u-qo 1x bvr l 9if3r 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 displaceme,:o8+ lzjkic mnt 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 wave generated htge7jwa()rdj.fk4 / by the guitar as a result of this vibration. What do these two waves have ifwat gje jdr/)hk 7.4(n 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, thuieq5;5pg5x4uq 6 j9b y0ghmpere

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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 thrze :d/+pa9t9c,cv2 vqoux 55bs.ss la ee lowest tones produced by thio 59 uv, acx2e9.bl5d s/q+vszpsca:ts 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 zgu nhi(e 5au+p*rr- 6open pipe of length L is 200 Hz. Which one of the following frequencies will not resonate in the same pipez* 5erapgu6hr +n-ui(?

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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. Whit xs6((1;swys- nem pich state -mpisxts(ny; s6( we1ment 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 0/9 tf9 mzaaghis open at 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 wavelengths of mcb8i+z/o :bf the three lowest tones producefi :ob z/cb8+md 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. Which of th,hk fu9s8.bx xz7; :kf5jokipe following frequencies will not resonate is9kk jhof pbk.:5 f;xu7x,i8zn 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 isw0zl)oabx3 ki ) (zft,di/;af resonating at its fundamental frequency. Which azf/wa,)f0(i otxz i;bl d )k3statement 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 drivezh vz89z0 s. az36.ppwwvmu y2 6kd+wen by the same source. Each speaker pro zwz+m p06kw .vusz v8ae39d wh.pz2y6duces 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 bel55(sy pos6w7h66 nwl d odnb(ats, the two sound waves should 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 fla*ra; hojb 8,4wk ,ftrequency is heard. What happens to the beat frequency if the frequency of one of the tones is inc8*a ,la;,tfor4 hjwkbreased?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Doppler shift explainwp0/6bnj;k4xxb m2kov wv4 -m5vl 5k nwy+2czs

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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 statu9 jg.y)x6;s roz kfp-ionary observer. The frequency heard by the observer iroz-6g.9;pfx j y uks)s

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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 tim u ua 9q1-8 78rpq4yalsiy8the obs8al91 iq iy-ts74u ra8m pu8qyerver 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-spee 1 0p +alo7as7rztghwdco0/a* d, its half-angle will decrease by a factsag *tl 0 7/0po71a +zacrdwohor 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 kt sv1hu 1pt ky6w/z9)lHz in air is 352 m/s. What is the air tempera)uyh6w1p/ttz 1vlk s 9ture?

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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 /a0);2l rma.haxluk )j1gpb, b2q zn:kz6ybvspeed of 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 340 m/s, a bat emits a shriek w1oczl y)*4jq /p jfiz-l; ch:ehose echo reaches it 0.0250 s later. How /il c4z e1zy) *pj;lj-hfco :qfar away was the object that reflected 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. The temperature isc3k0zi(i5lh1 vy4a8;hu p hd y $0 \; ^{\circ}C$. 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 ofg hw .83aay,ew jos-c9 lightning, the distance to thes8j .,aog ewc9hy3 -aw lightning 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 day the/d9gb8b8 9e v ocgr2vl 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 2.5 s later. How de9ya:li ey g25n qj(qcgfv q6:/ep is the well? (Ignore air resistance, and assume the velocity of sound is 340cga:n2fie/g 5q6:y qyj 9vl(q 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 of3s.tq2xhxm(7f +w b cq 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 air at mqyt;kw5gd 59: x0b gphv2(eyh.;p nz$23 \; ^{\circ}C$ 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 of0d jt mb.xjnc6z sllbv9sur *5z) -/n, a 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 701-us:a7 dxcte -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 intensities of two sounds with ,3ha. nfvo cvd8 19y5ghykf-fintensity levels of 70 dB and 48 n.dyv-fch y 5 gakfo1v39f,h0 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 zlx4,nt,62 zym1xmnwba;f5 qm9ba8 q100 dB. What is the intensity level generated by one engineq b1a6q9 ,;2x,n8nwzam5bx4m mtzy fl?

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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 sout5roseo* jy(dkb/.; vrce that is radiating equally in all dko/ s 5ejtvr;.*dy(bo irections 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 source that is rd 3yspt)r/1p vadiating equally in all directionst31/ps dpvry ) 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, which1mye9j q kpu.9 is assumed to be uniformly distributed in all directions. What is the intensity level at a distance 5.00 m from them1ueq.p ykj 99 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 65 dB at a distance 5.00 m fromepx 98mm- goy5m ud//i a barking dog. What would be the intensity level if twi /-p 5 mgyud89xe/momo 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. - 4c-bx(jc,ubg75vsh hjad d.What is the intensity level (in dB) at a point ahjubj7vd--b x4.gs c h(c5,d2.0 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 levelofk0 e0u:east/fo2 3cz9n (dzqt4r 5l 5.0 m from a point source is 95 dB. At what distance will itfo dae(qsu3l 2 ze4/5z 9f0crt0 n:kot 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 complex tone has a frequency of 1200 Hk 9 00x8ld i ccdy.csd6blp.(vz. What is the frec0sdvdx l ciblyc. 9p(8.d60 kquency 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 an open pip f1ox0putwtc 4 2x6(kne is 900 Hz. What is the lengthx(tx 2p kc6ufon1 t4w0 of 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 le e+ge9 ef55: ks9znxmhngth L is 400 Hz. What is the frequenxeens9 m95e:kfgh z +5cy of the lowest tone that will resonate 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 of 0.80 m. If tho-, gf5ypwf 8oe velocity of sound in air is 340 m/s,foo5y gf8w,p- 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 h*t 7z as (6m*j8je+irfh4xlia 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 in a pipe clost7ncl5x jk2:x 5yck(f kj*di+ ed at one end is 330 Hz. What is the frequency of the third harmonic5jc2y:l cxdn5 +* kif7 kjt(xk?

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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 f c0bq 0bp1u44eei )gij4ok*t pipe closed on one end that will have a fundamental frequency of 60 Hz on a day when the velocity of sound is4ob ie4tf0 0ku)4p*igjbce1q 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 is*h)kkclh.g t 6;1pd gk $20 \; ^{\circ}C$. 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 rj ekf3. kvix (q:vf3+f9uv g,zoom 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 playedwn b72jf+21qt h4z l8 )gli47mmm amfr when the speed of sound in air is 340 m/s. What is then jh f2 g w24)l8i1qmzfmblm7mar+t74 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 closed on oa):u+sjama:ag 7t39fbr +bv rne end. If the fundamental frequency of the open pipe is 300 Hz, what is the fundament bag3+9jbasvm arfru:7 +at):al 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 ;d;f8z iia3td of 800 Hz in air where the velocity 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 hea;a d8i3;zitdfr 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 side and driq l)wh gzt ,x0:sou+z2ven 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)gsx0, z 2+:huzotwql 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 frequenciwlv j bmm;x9++es 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-; hzky8; n3 kp oz0-hl.vllsj e1c,cb-Hz tuning fork to tune the frequency of a musical instrument. If the ;s; 3hbk0n.l,zco pz8 clk1ehj-yv-ltuner 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 by two horns are 6 m and 7 m respectp8xbbzki- d*(1m xs :xivelym-b xibx(x1 k:pzsd 8*. What beat frequency is heard when 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 strings/ nw2ea xswr6:/zan 8p 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 tension of one of the stri: x6s/8ae/2ww nzarpnngs 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 the spu7d.r0f;env k+0wlajd9 ; jg deed of sound. The observer hears a frequency of v;er;ndkw70d.j9 +0ugjdfl a

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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) approaches v )-saw3quo6h.qb1,xh ;rsqshbj9 e3a stationary observer at one-half the s6ebsqw)q-31,xhqh bhro 9 ;.vjsua s3peed 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 8sovvy .hlr:4k+a ky5 a speed of 30 m/s away from the source, what is the frequency heard by the observer? (The sou:4+o 8vyk5hsav .y lrknd 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.udc;afl34 t.a;30h;hiyt qy ptc-gz day when the speed of sound through air is 340 m/s. The car approaches and passes an o03 pa3yfuyt. ;izqgt;;hcl-h.t 4ca dbserver who is standing 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 observdyt ,hbnz l9q8n :2l.ger when a train approaches with a speed of 30 m/s. The frequency of the train horn is 6hnbn tll8y2,.gzd:9 q 00 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 you at 120 km/h. The train bl5r4q j:1/po*0zmx g a9qe7. iclyzz xrows its 400-Hz whistle. Take the speed of o4e.ziz*xam 5zcyrq1r7 g q/:09pxjl 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 stationary train. The s2 ( jq, fw/xsjay;xi6l:mk(ytrain blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency do you s f,sxi:( jjy/6k; y2x wl(qmahear?

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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. e qoihoysq/2 ;5(*7b i (dtjsp The train blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency do you s*ey ip7oqodb ij2htq(;5s/( 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 whist fnp(az(4n nb7le, and you hear a tone of 400 Hz. Take the speed of sound to be 340 m/s. What is the actual frequency a7 z4nfb(nn(pof 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 sound in g6o qx/mlm5grh1ob y9xq t(8: air is 340 m/s. What is the frequency heard by an observer if the obserh8qqm5 /obgml:(1t o69rx yg xver 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 s4 mlxb0mz :7itpeed of sound in air is 340 m/s. What is the frequency heard by an observer if the observer is appromitmx0 7l: bz4aching 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 spe 4vq/f exyo74xed of an object. A 40-kHz signal is sent out, and a 42-kHz signal is returned. Assume the speed of sound is 3 yq voe7fx4/4x45 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 bylso4vv q/yghl : ydv27;kyff:smf-la8w e*0 . 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 c3hyt+f( 7 im9*zffkd. What is the half-angle of the conical shock wave formet +(f7k y9ifz3fcd m*hd?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Concord airplane fli 1mv xl4e5rc j.jf7sn/*x5 zjaes from the United States to Europe with a Mach number of 1.05 where txclejr j4 szxa75/j 5n.1vfm* he air temperature is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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