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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 sxue8 +(7b4v/hbv u 6d7xxt neitatement?

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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 contkhn9ec)pgk64j t+q :ducted 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+.yx1 k(4 :mecujtcf n 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 happen- es, phy0/wobs to the velocity of sound? (Ase h0o-,p/ bwsysume that all 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 velpsub; i5/ ox+nocity of a 200 Hz sound through ai xo ;nbp/5i+sur 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 sound,qeluac5/px,2 ,6lhwbs y5 (i k the wavelength of a 200 Hz sound ixl6q aw,sk / p2hu l,bice55(yn 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 frequenpcrfw-5u 8g5bcies 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 than 20 Hz are called.z * at6,z:ep:9srl ojiq/ jds

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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 directions. If y*viygyv/k5i2 o t)5 zlou move to a point twice as far away from the/*oz yt5yvk2i gi) vl5 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 wa48 ,muusr. eijves, 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 bxznhi kuuj4984w1j9 I. What is the intensity at a distance 2d fj 41z9n wx uijk98buh4rom 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 tha0,snxpi /e x,zt is radiating equally in all directions. What,expz xi0/, ns happens to the intensity 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 t1b3s0 hy xbwebuq(f f 11vi21phat is radiating equally in all directions. What happens to the intensity level of the souu(w ye11b v30biq 2h1sbfxp f1nd? 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 following7c;kk m+,(vlnx- zyil increases 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 emitting a pure tone. What characteristic of .gt)g 58qdtrpaf+3jw the sound increases? jp d+tqg835tw a)g.rf

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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 n8 kg/6yo 7/x,vprf 9poxu+yqjote?

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What determines the t) o0/xi*al,7 qz nnr u(tu.yc"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 air i0 k 0(3dyeqaotiac( )onto water

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Pressure and displacesj 8-s e9ep5fgment 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 t lo8,deof ,q9guitar string and the sound wave generated by the guitar as a result of this vibr d ,qef,9olo8tation. 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 whibv(u i r7+e,fbch is 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 8i;c3k nf. ijb6e6 ,sl;f wlttthe wavelengths of the three lowest tones produ; 8t.;le, nbwfkt 3sjc66fil iced 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 arhzynf+1lbxjc 8)6 w-fmzh3 /n open pipe of length L is 200 Hz. Which one of the following frequencies will nm) 3c hr h1+w/8zlb6xff yjnz-ot 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. 9tv i ,qbee6x-Which statemente9beviq6, -xt 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 vlxv 0)tp(m3 nopen 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 the9vmy n4ts+e-eec6t:c three lowest tones produced by e- tmvnteec :sy9c4+6 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 pipempo cz,wl7i0 h1p *:xn of length L is 200 Hz. Which of the following frequencies will not resonch z:mpn 7l,*p 01iowxate 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 resonatp:, vwren i;+king at its fundamental frequency. Which statement is correcw:vnki p+ ;e,rt?

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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 driv3vbexs+kr v:x/kx9/ r en by the same source. Each speaker produces a tone with a frequency of 200 Hz on a day when thk:9e /vxxs3kv/xr br+e 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 z+:k vlp(m*x 9)-xay av,iyw xshould 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 togethej zwhv6ji 25-er and a particular beat frequency is heard. What hapj i-hwz62vj 5epens to 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 explai omw pl/):2+orcob-ug p.1au wns

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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 frequency heard by tm2p 03xcw awz/he obse pa3mwcwx/2 0zrver 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 stati0-9fxb3)pre 5rl qxmr2)9artx,fp zh onary observer. The frequency heard by the observer 0xmr2af xh9)q r, rp)-9xp berzl5f3tis

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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-ajh ;pgn exez34h1vz,kf k((4( *cweuyngle will decrease by a factor o4,epj vgh khkcfn;uy(e1z ( 4*x (wez3f:

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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 45u4-w hl -n.mqh kHz in air is 352 m/s. What is the air tem mh.-l w4uqnh-perature?

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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 tj rwq+*.smq3qn dn9, .gtun ,the speed 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 speedzjaw qezv q3/o267ld+ 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 obze d2vl6zjw3/ qo+aq7ject 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 i+z/xlc6) 7dj-c+7 kb jailrjun 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 afthwst66zs3va:hhyq0 /)p)j1qy )vmg qer seeing a flash of lightning, the distance to the lightning strike is aboz3p hhgyv) 0tq s/ 1jya6v :)s6mhqq)wut

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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 o6fho a56a f-kg.fk)xsn 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 2.5 s later. How deep i/s 1zq)rhl o9ms the well? (Igno/1qhzls o 9)rmre air resistance, and 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 y+bnd gtf nx51:rv (9jof 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 ;b u8 y hg68ekqwejv-7pb5/g s$23 \; ^{\circ}C$ 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 tl e.l-i3i : hsg2yx9twith 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 sonv7xl;5 w0rusp;d i 9kzx1h jgg/s:d,und?

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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 in6j c-+vfuk,mmtensity levels of 70 dB and 4 v 6fj,k-u+mmc0 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 hl mcnc( /7(odthe intensity level 7((o/m dlh cncgenerated 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 radiating equally inn(d6my69tv1easx f/ i fei 6t(n6/da1xsmy9v all directions 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 distaz h,xyvbfb58wln+teye+ 17 4qg(b/ vonce of 6.0 m from a source that is radiating equally in all directionsv 1+t,ng5xbyzq 74o v8l(yf/bwe eb+h 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 ass8fo hejv1k/ k6umed to be uniformly distributed in all directions. What is t1 jfo/8kh kev6he 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 distance 5.00 m from a barking dog. cy0+;7ehd3rqg(hzpm+jw y v/ What would be the intensity level if two identical dogs very close to each hd03myhw q7c/ jerpv++y ;zg(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 8 8lxr9-.uke.z m(m(feg rsls from a sound source the intensity level is 60 dB. What is the intensity level (gs8ukl.x rmz.m8e-rf (e 9sl (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 distance bqw:k-c :yis s*w,ki-kc ,:wks:*b-i y-iw qswill 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 complex tone has x 18gpc 5o7chpa frequency of 1200 Hz. What is the frequency of the fourth harmonxo7c h 1pp5gc8ic?

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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 thirdzvq,- 8nu8r :)wgnbd t harmonic of an open pipe is 900 Hz. What is the length of t r nt,bn8-gqv)wuzd: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 resoat4d h4bk(-ovnate in an open pipe of length L is 400 Hz. What is the frequency oab h-(tdv44 kof 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 0.804h d(zucxx1 b5 m. If the velocity of sound in air is 340 m/s, what is the frequency uzbcxhd1(4 5x 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 an pu-rw 9sp0()oi8z5nvw a*d 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 pipee+wv(lwru: ,s 3x9vg -k2g oct closed at one end is 330 Hz. What is the frequencs 3clx vr ew+:uov( 2-9,gwgtky of the 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 o, nlvno8* hp)dld q*q 7kdu6zib+ *bw;n one end that will have a fundamental frequency of 60 Hz on a day when the vel )*pob;d8lnvk*bu zhn *w7dq,l+6dq iocity 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 t/d7xbkp /f 9 3gr1juvqemperature 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 temperature 2, ;.i:;k5x ii v vgykryrdftfb z+(1tis $20 \; ^{\circ}C$. 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 0.7yb9x*udysx )6r99 u xo8xery xe6q9 (m5 m is played when the speed of sound in air is 340 m/s. What is the e 9y rd6 e986xbru()9xxsyxomx9q* yufundamental 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 close4k:ep+sqt9a6k *f,lfbgc0r u * zq,b wd on one end. If the fundamental frequency of the open pipe is 300 Hz, what is the fundament+s,qfk4plaf9wr b* gb: ,e z*c6uk qt0al 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 bd4uyf+:2u aws2 m: bk5otz 8kof sound is 3kdwoy:k:b au +ft248bz 2us m540 m/s. How 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 side and drive5n+j(*i o*rqs q7rhdtn by the same frequency of 500 Hz. If the distance from a person to one s+5 s jhqo(nrrq d*ti7*peaker 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 anhv8 y e2g8i1tzd 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 tuninh1q9uv-r0 pn -dd+b-mbrpz*lg fork to tune the frequency of a musical instrument. If the tuner hears a beat frequency of 2 H+p1-lphbdn bm- 0 rd9q*-vu zrz, 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 rec*oyrqo i 7r70spectively. What beat frequency is heard when the horns are sounded on a day whe rr7i*yoo0c7 qn 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 on two violins in an orchestra are found to prom 7sh5e 4coa7fn6ow 2bduce a ws577aofnm e46c2boh beat frequency of 2 Hz when a frequency of 660 Hz is played. What percentage change in the tension 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 approachesob9: yfxpq4dkjd/ 1 8q a stationary 1000-Hz sound source at twice the speed of sound. The objq kq/94pxodf8 :1bydserver 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 frequency of 10qafl.y v. 9//*djabf .k;cpo)iz m2sp00 Hz) approaches a stationary observer at one-half the speed of sounsykol*p9d) / jbz mpiq/;.a f vaf.c2.d. 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 spe6ul*re1vkm ml0 y8a.w r1qzs;ed of 30 m/s away fls q0r1yzw 8 ema6u.km*v1lr;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 m/s on a day when thai.) e:,v6mmok: wetj)9nfoqe speed of sound through air is 340 m/s. The car approaches and passes an observer who is standing along the roadside. What change of frequency does6 wo9je)a),nio:kqme : v .tfm 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 statgjfu; 93o :bh/uwte * 4 fy9j )apw6jffb;pld8ionary observer when a train approaches with a speed of 30 m/s. The frequency of the train horn is 600 Hz and the speed of sound is 9b3d)8 j:j9 fjht6uy4bfwle; *;p of/w apgfu 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 blowsm;ib0kj:/4uw;hcx sx its 400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency do y4;cxj b ;0kuxm/:is whou 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. yp yc-0h4tae 8The train blows its 400-Hz whistle. Take ty48 yh-pce0athe 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 afj4vwl-:5nwo:bae l) t 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What fjbnfa:v4 l)ew: ol5-w requency 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/hv8 82f2m+t8aksl:k eltfp qd :. It blows its whistle, and you hear a tone of 400 Hz. Take the speed of so eaflkvpl:228 t k+f8tdqm :8sund 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. Assum 2(8:g:-ufej s w+kv6 hab1 wt3wttfsze the speed of sound in air is 340 m/s. What is the frequency heard by an observer if the obubtf3sw-s g k1(za82 wv +t6h::fjtewserver 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. Assumefr2 .q)9cppv 2yjc/ pr the speed of sound in air is 340 m/s. What is the frequency heard by an observer ifr2rv q ypp2j .)pc/cf9 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 objec9n2 ykw/nn;*begi .z b otd4(yt. A 40-kHz signal is sent out, and a 42-kHz signal is returned. Assume the speed of sound is 345 m/s. How fast is t/.bgtkn(ed 94byz inn*o2w;yhe 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 pxh g7cdrx i891b xh6qda 4bpv l-6*k4produced 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. Whaau*vab d-d+l *hl+k- f8nukm:t is the half-angle of the conical shock wave +k8lad *k-+hm- uf*abvd:nu lformed?

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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 with a Mach nu32 p+xl)pa, 9qf. h/8y.bct*s aat jhsqm js;qmber of 1.05 where the air temj bf l2.sq.xap8; *9s,hqaa/j tpys qt)+3ch mperature is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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