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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 following is a falsecvl ++*vbp e.2 yghc.b 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 condscrbnub )v431ucted 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 in a,ry jtvtez+a:-t35 nz d.a7ke 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 the9+hvc0 ueztn( velocity of sound? (Assume that all other factors remai(eh 0z9+tvnu cn 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 5md 8+c3siauu400 Hz sound, the velocity of a 200 Hz sound througc m8duiau5 +3sh air 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 ss0lh)v eil +-wound, the wavelength of a 200 Hz sound in air +vwiel -lh)0sis

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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 20,000 Hz a( hhl 7lfa6zf,q*55y yg8sy 4skihe s1re 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 hwlm g b l)akl+.;dy+ )*p)-v:lxuorx 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 s7xo)6x9z ;s zybuoi2emitting waves uniformly in all directions. If you move to a point twice as far away from the source, the frequency osx 2yi)o;9s b6z uxz7of 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, intensity is proportionag,*5 b us,+ juhkp fk(5v)fsox4gwew0l 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. zqp 0lf/(1i3mg rfm k8 What is the intensity at a distance qff zp/m klgi8 1(03rm2d 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 distancemsy60w bc(y 6fisu77 h from a sound source that is radiating equally in all directions. What happens to the intensiym(fs ub7s y670 6icwhty 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 equally in 3( rrvx8m:wvjall dirw(rr 3m jvv8x:ections. 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 increase nh-s4me/ht z:bsbc) 9s 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 speaker a* a 8sys+q13 xdw /yqes4fw 74satw7wemitting a pure tone. What characteristic of the soun8y74 *7ex+4qsswdw ywt3qf /a1asswa d 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 musi88uau7gf35sn l/8pxt cb: iwical 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 musical note?kn (idxv+3 2z7 wbnl;n

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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 airo z3 wa8:hfqt3ve.nj o yuw+8.z4 y-it 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 displacement wa)ng af*ht(c9 ctya,9hves 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 g9;arta67zo/ k 1k zhevenerated by the guitar as kao9rtek167zz av;/h a result of 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 ausq03yjx5+r 2a+ ;ruu tm3qiis 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 leno46n dxhaafm67(h6 o i6b9o nbgth L. What are the wavelengths of the three lowest tones6 d n9fxoia7aom4bhh6o6n(6b 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 oqx cz9 )yrhnq*tg7(4vb9gg9pipe of length L is 200 Hz. Which one of the following frequ99y (g )zvcg9g h7x4q t*rnqobencies 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 fundamental frequency. p yat-uh 1;p0l Which statemen-t hpyu ;0pla1t 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 other, the d/vvbg6zs y:i blz dt)ki4/(6re

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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 the three lowf k(cts53./+e sx41q uscxgis est tones prosg cx(4 f./s3sxitqsu1k5 +c educed 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 3g 6stmfd vdyi,lov x . b.h8rx+,wm,;of length L is 200 Hz. Which of the following f,h s mvg83rm.xtfli 6+wbo; vx.y ,dd,requencies 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 at its fundamental frequency.a(dc1a08 azz d ackt8p;1lbl+ lcd 8 aat zca;pbl8a1(z1+k0d Which 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 by the same source. Each speakeraeb+uv p*:u10+rigj:rgfub . produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330* .gjvir++u bre gu1fu0b:pa: 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, t/(mm jqv-.t :qzhn1 hzhe 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 togoal vabrdigem2c m9/, m 5ibad:;/ k65ether and a particular beat frequency is heard. What happens to the beat freqd,26m e 5ai vmar//ilbad:o5 mk bc;g9uency 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 explao5go9wittrew: s e* ,ku/7p5xins

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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 obse.)lpbx8 f ; gvr3l9pigrver. The frequency heard by the observer is rip9 p gl)xvl3gf8b.;

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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 heardj.zmqqdv(od7 :9r ;i;q4icutjs2 iy 3 by the observer ivjqsj:i o(z2r3i 7tydu.q;9 iq;m c4ds

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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-spm07lim)v k0 :9lzribbeed, its half-angle will decrease by a fac) rk0 i9zv blm:ml0b7itor 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 i c1f 2)phnzj+ws 352 m/s. What is tw+ chz)2n fpj1he air 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 pqd y2kn56 kky:f;se+ 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 w,0h5eob, blr7yt3) l iqyg400 dfjgz ghose echo reaches it 0.0250 s laig5ybfbl o h03lq ygtd00, ,zj74) rgeter. How far 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,22gzo 0+suofmf;v 3c w and hear the echo 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 5.0cl +mzbyg60 vfe 9+2wb s after seeing a flash of lightning, the distance to the lightning9l 62m 0+gbfczw+ ybve 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 2.01 h.ay96ohme+v- oc mi s from a cliff 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 dvfp44( jbe0k; sq mm,peep well and hear the splash 2.5 s later. How deep is the well? (Ignore air resistance, and assume the v,es04 (bj p 4fv;mmkqpelocity 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 soundhj +xa ;m2j7(f 3 mdyhxpf l8jzp,;r2k 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 n0 bv9b1oc 6yyex/6ikat $23 \; ^{\circ}C$ 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 levelq3 s(f0ynr p-p of 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 70-dB syaw6) ,j5xko wjy )6t:,x amqround?

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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 intensity leb. z.tyxlt2 1qr) v3u8nqqq4 3trzcqq6h1nk(vels of 70 dB and 40tqql.3) nt8vr3 bxu2tzqy z1 r1kcqn q6(.q 4h 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 intee.0eafbo .:; ff0fhks )y*rfmnsity level g: k ffmff;. 0eyr.s) *of0hbaeenerated 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 is bydjq ::8yf8+ b7 oufbradiating equally in all directions +7ybuob: y 8qfj: 8dfbis
$6.0 \times 10^{-10} \; W/m^{2}$. 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 isc dp5lh/)lp ;f g03nns radiating equally in all directiop p;5g3nfh0l cs)/dnlns 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, which is assumyg .2zp 0;yj,1 :cm smrb;jf +xeesm.oed to be uniformly distributed in all direjmco,+ sx.e;ybejmgz0;:pyf m 12 .rs ctions. What 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 65 dB at a dist7e9bm hy ln67ykdo (c;ance 5.00 m from a barking dog. What would be the intensity level if two identical yok;lc 7b7 e9 mh6nyd(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 sour )ut gkr1q/p(it izu+79fchn.ce the intensity level is 60 dB. What is the intensity .z t+q( huui)9tkgrf 17nic/plevel (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 )brcs/e/slu : 95 dB. At what distance will it be 7 sbl/)ure c:s/5 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 )/g y3 g75,e x4r:uknfj/-x pfifnybz1200 Hz. What is the frequency of the fourg ff jifk xp r/bynu4n-5/zg:,e73yx)th 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 this zm,9a wtayfvi99: -sk:d/aard harmonic of an open pipe is 900 Hz. What is the length of the pip9assi9t : ka a/mdva, yw-:f9ze?

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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 8zn7y;,wd/csc gqy 5nfrequency of the lowest tone that will resonate in an open pipe of len;8 ynys,c5qz cdng/ w7gth 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. Iyp;p rm192ud,7eezwkca x;q ;f the velocity of sound in air is 340 m/s, what is the frequency of theee1awx9;rpc kz dy 7m,qu2;p; 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 af oaw8i4/jn 9s+n) nm:fi+ev z 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 frequerur9 6t/o9/j ed5gfykncy in a pipe closed at one end is 330 Hz. What is the frequency of the third gur6/d 5f re/9yjt9koharmonic?

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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 w bpgb5a*b+1q ut. w/gsxc-r +lill have a fundamental frequency of 60 Hz on a day when the velocity of sound is 340 m/s?-s rg/.1u qt+ bcgx*pabwb+5 l

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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 i csmhz/l5bj.ig 38 db -m(cv0ws $20 \; ^{\circ}C$. 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 t6uzkz ;iuj5+ hemperature 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 pl3al / unj5kw)1rq: 5pnitula8ayed when the speed of sound in air is 340 m/s. What is the fundamental frequ 35a 8nt)wu 1j/r5plaqlk:uinency?

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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 andc963de-rcvz a the other is closed on one end. If the fundamenta6cv a-d3r9 ezcl frequency 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 each emit a frequency of 800 Hz in air where the velocity sz2qwba 33+afof 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+w3fs z baa2q3r 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 driven by the same frequency of 5g(ysme:s7 f(a*d 1u kp-n )htvqu56rb00 Hz. If the distance from a person to one speaker qs) (6y (7gdnh5 bumtuf:es rkpa*1v-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. 1)u:r mqfwuml-gw.;z 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 tunine1mg;ya*fm-. sg 0d+1qpklfhu f (cm;g fork to tune the frequency of a musical instrument. If the tuner hears a b-cfkfh( s;*lyeqmf.1mp1 d u m;a+gg0eat 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 6h94+ iq1 a+:hep eybyd m and 7 m respectively+dp4: e qeh yhy9b+1ia. 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/f h6wvp /v 32-ekxjdj 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 tension of one of the strk/jj6efvdx3 -p2h/ wvings 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 soun06e t3i5mg xs*bjvik-.fa z n /jxyh43d source at twice the speed of sound. The oe3 5fbi- ys k3ga 4j*z60.jhxvn/itmxbserver 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 (normal freg: xzv/rno+agpcu **s9py 8 6d e: 0yaddwv/x7quency of 1000 Hz) approaches a stationary observer at one-half the speed of sound. The observer hears a frequencye*:g0/ axrg vs:v*dnp8a697+po ddw/ zc xuyy 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 frequency1 b8 ua)ov1lell0yr/w+5w -obi2lyh r of 1000 Hz. If a listener moves with a speed of 30 m/s away from the source, what is the frequency heard by the observer? (The sound speed is 2i+5y ulr1w1)e llwo-rboa8/bvy 0lh340 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-Hj8h -m pitz/vgi4 z8u3z siren. It is traveling at 35 m/s on a day when the speed of sound through air is 34ip8vmi3hj-8z 4t/g zu0 m/s. The car approaches and passes an observer 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 observer wheu iu0:n /z9vnp-q3jwded:6zu po+gp;n a train approaches with a speed of 30 m/s. uji-pquwnn:0pz9ozdd e p6;ug v: 3/ +The frequency of 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 you at 12t(14lb ,ve 2 gv, aoe:p4tnpdt0 km/h. The train blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency do you , p(4nota 1ve:2btpd ev,g tl4hear?

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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 t(c*; nsyx (s jpcjk./joward a stationary train. The train blows its 400-Hz whistle. cn;y*/pcj sjsk.x(j ( 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 awa iy *hb h2vw1dppz.a rgy.i700y from you at 120 km/h. The train blows its 400-Hz whistle. Take th*ahi12pbvd i y.00zrgwyh p 7.e 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 from you at 120 km/h. It blows its whistle, and yo*ci v-3fn /mwgmgy m6.lr;r qq9/rzd2u hear a tone of 400 Hz. Tak3 yl/ci r6 -r f2zm;mgw9* gm.dqvq/rne the speed of 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 traiuvwr u163g (aln horn is 500 Hz. Assume the speed of sound in air is 340 m/s. What is the frequency heard by an observer if the obse agu3vr (6w1ulrver 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 d8ipk b a .dx0)4rh(4oh.t0 5spmfyrrHz. Assume the speed of sound in air is 340 m/s. What is the frequency heard by an ob0sr4a)pmxd0yfdh r .4(h r .i58bokptserver 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 40-kHz signal is sent out0q8m/ww/d sja, and a 42-kHz signal is returned. Assume the speed of sound is 345 m/s. How fast is the object movin/0d8w/mjq a wsg?

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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 supersonn/ n qmn3wq z hde5+9mcqv0,;mic 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:5wfkhbar z*8 the half-angle of the conical shock wav8hz:f *rw b5ake 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 States to Europe withmad8qxa0b+7px9c6v y 8ih h l: a Mach number of 1.05 where the air tem:mcdp qa h i8hyx 7b9vx68al+0perature is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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