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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 false statemgs6s pt8c( p3nent?

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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 conductq al)igm bk1v4 yd8 .ppuq5k+1ed 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 steeln3 nx/o psgt+ b37qmv5 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 the velocity of soh x;n8eo0ui- sund? (Assume that all other factors remain constant. h8ins0o- e;xu)

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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, th -c.y0zlyeg22e,lim f pqjqi(7 xoh b24;tp:le velocity of a 200 Hz sound through air qh7i; tllx0pe py jb(oy gq cz222,-e4ilf.: mis

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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 v k:-ydim y;:,mr3gyc of a 400 Hz sound, the wavelength of a 200 Hz sound in air ig dr:y-ki,mm;v :y3 ycs

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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 greatg e5/,/rr:ql vq2dhrrer 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 fre 6 jrwn2d8du-z-,g-xlgy0 ejs quency 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 eo01whcjt fe8 j 8t/g-/mu2 hoymitting waves uniformly in all directions. If you move to a point twice as far away from the source, tg- of8 /eth8m0j wch2/u yjto1he 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 divek b 7x(iubmo-3rging 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 so )xpx,g,/ydl x,9 ;et4lolvrmurce at a distance d from the source is I. What is the intensity at a dixr,)lexyxm 4 pg;t lvl9/,do, stance 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 sc9umoms. 8w/b ource that is radiating equally in all directions. What happens to the intensity of the sound? It /98ubomms w.creduces 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 it6x6y,pxy /s .ww*uuqn all directions. What happens to the intensity level of the sound? yqwt y6uw*, xxpu6.s/ 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 eb6qwy-qcgg54) z8g d 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 emitting7f(o0 jbp w kver9q()t a pure tone. What characteristic of the s7wf0 9(tej bk)qvro( pound 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 musicfny) dgh/-; ptal 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 "pitco97fc )geqf 4ph" 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 into p5 a1-kh up jq d2zr nzwy8oz12dvyef884g56awater

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Pressure and displacement waves xc0jkyno mmr52umq) bpw(:: vp,va(8are

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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 s tqvvljrlzl+9, 29du6 ound wave generated by the guitar as9l2t9 ru dzl lj+vvq6, 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 ienk0s6 c penafci9)s 6x,/x7vs 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 l b88 +y/wypop.i ,lzslength L. What are the wavelengths of the three lowest tones produced by this pipewo/.+ y,8l bziplps 8y?

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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 yi2lnjz*u)4i rin;ss a*n + +gis 200 Hz. Which one of the following freqa4i *)ysi ;sj+ *nginu+n2zrluencies 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 frequglz piuzi h9:-y d,..rency. Which statement il pu,yr h:.iiz-.g zd9s 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 clz7tf9v.p2s+gr5.atp*xu+u v qxz s1dosed 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 wavqb1 o1 hw ,f* ,*wp-iepvox 3ev6of(qdelengths of the three lowest tones-pw, xv131oqvd(e*wbi , ehqff oo*6p 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 200 Hz. Whp4,xog.s fap*ich of the fs fxp.g,po*a 4ollowing frequencies 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 avzht td+2dcoi9tw6 jw1. (y;j8e;ulit one end is resonating at its fundamental frequency. Which s6z 2 8vdloi(tt ;tj u.yw+;9dwc1ijhetatement 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 souom/il le, q5f:rce. Each speaker produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330 m/s. The pefoe l/,iq:5lm rson 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 shr52itut 1rq x2)m hy5could 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 beatr,v, /i i9m s4 ;zbvhzd)r1cno frequency is heard. What ha1r,)bsi;m dv4,zzihro /vn 9cppens 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 exe zybx8n6k u81plains

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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 the obslhwx4e6n j5f3 erver ix45n 3wlh6efj 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 t odkjq+lr59fs 5 +e70;miegt hhe observed0il7j tmsqee; orhgf5+9 +5kr 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 widpzco;3 lixw s 2s-:x(ll decrease by a faxs 3x:(l;cw op2-i dszctor 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. dot w; 1vf33ebhs7aeku) sh)8 tni+vppy0d4 : What is tht0updh+vs)s v8t ewop) :a ;4 ndyf1k3e3 bi7he 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 ofgt iq x3p2puqug)0 /f1 m 17osl+t-fua 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 speed of sound incdp(2jz /p9q gi7n8qi air is 340 m/s, a bat emits a shriek whose echo reaches it 0.0250 s latd i( pj/q7 zqigpc289ner. 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, andtl9yby3 s:xs celf9*b:jyii i, +i86b 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 5.0 s after seeing a flash of lightning, the distanr9f5dfriv x8. 9txscj (z k(t w3z0b5oce to the lightning strike is aboutz9 5r5wd k ( ffvij9(8.toxsb zxr30tc

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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 temperatur78dmb 14c: 5pnngh gn6gvxm-)9azga z/ f 8zhbe 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 i-c5b/s oyhu(lwi j;:the splash 2.5 s later. How deep is the well?y iw;cbj (s:o-hl/ 5ui (Ignore 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 of a sound wave of frequem4shb8 qu 0f7nncy 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 atf*/jo .yvz qz*dl/rz8 9ehfx* $23 \; ^{\circ}C$ 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 witx ,k5b( g,zakdi0c2q dh 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/ oxmdny5q l) //o+l8mt:pq6crxcwu ;4cen4a 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 wmsa7wznq5638 z p +lqbith intensity levels of 70 dB and 4l+sq wpq86nab7 m3z5 z0 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 10 v2s+bnihp ;6 )n1apw7efj wq-0 dB. What is the intensity level gen)- j hn7n2 pq;av s+p1fwwbe6ierated 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 bww.tgbgh4s-fw sr 7* 7w*1u/ (ewonhthat is radiating equally in all dohfs /(w.ws w7*r*hb-ge7 t unwwb1g4irections 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 dist;i3 tc9:gfhusance of 6.0 m from a source that is radiating equally in ;gc39ts: uihf all 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, which is b2j*9nfky 8y.i u6bipk6tv,sassumed to be uniformly distributed in all directions. What is the intensity level at a distk8ks6*ijunyb p9 .tf,vi 62ybance 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 fromut+q8 tug )bcw+ k+p3n a barking dog. What would be the intensity level if two identical dogs very close to each other are barking? t ku+q) +nw+ut3gcbp8

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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. 3lizd+o mqt5f; sdp;7What is the intensity level (in dB) at a point 2.0 d53l7;do mtpqzf s;+ im 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 distanc8iv( .gf)+pm -rhyxude will it b8m gidu y+xfv.p-h(r )e 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 aaovt mj1 ori ca3erv** oqhk,v5433d, frequency of 1200 Hz. What is the frequency of the fourt otdoj3q5m,,3ekra*avv c4r v3*ho1 ih 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 opebs09 :j raol-yt*ce9rn pipe is 900 Hz. What is the length ofar y0 bo*sljec t:r9-9 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 length L is 400 Hz. What i 6emqu ca 4;5v a,;dol rwi)nufqj4,*ws the frequency of the lowest tone that will resonate in an oi,4,)c 5qron6w;a jq w4*evl u mfuda;pen 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 oe d5,e kgj2hr(rv4b:q f 0.80 m. If the velocity of sound in air is 340 m/s, what is the frequency of the secondg,rdkj(hveb 4 : r2qe5 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 thez h) v2- lq(u,trdf*-b3iz bmy 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 closed at one end is 330 vpw9 p run**;bHz. What is the frequency of the third harmonicp**wunvp rb9 ;?

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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 endr ki053+-icrggpr-tqc4 b ( hx that will have a fundamental c 4p0-qk-3r+hrtgiixgbc5 ( rfrequency of 60 Hz on a day when 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 where t:o+1on b6s:jdng7ope :zvch6 n-s/ tthe 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 where the tempery + v0+gqn7k*jbb rtm; di0;zqature 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 6bj:2jmw jl 7vgnu9u*/tjf0 cf sound in air is 340 m/s. What is the fundamental frequency/m*jgw6: j29tujvlbfcu n j70 ?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two pipes ohlv/opllx99l*o2 ycyc; 4fb7 f the same length: one is open and the other is closed on one end. If the fundamental frequency of the open pipe is 300 Hz,9y c f;l 7loc2ohlb*xv4 yl/p9 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 hpgv2aa6rg+ 2zn * k9i)ti q2memit a frequency of 800 Hz in air where the velocity of sound is 340 m/s. How much farther back would source 1 hg+nikma) vqz222ir9*6pga h t ave 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 driven by tha+v +-6x :hw4mdzjr uwe same frequency of 500 Hz. If the distance from a4wz xmwhd-6 :+ rj+vua person 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. What ieskk +j.o0d)-sbiprpy, df4f b k8;0cs 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 tuning fork to tune the f g5f4w+djw3lmrequency of a musical instrument. If the tuner hears a beat frequency of 2 Hz, what is the frequency of the in wgj45dwf +3lmstrument?

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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 9 ,e)tf1;*uvwmyt0rukqt5h ef3 v (hp7 m respectively. What beat frequency is heard when the horns are sounded;9y35w ufmk rf1 ,hevh(t0tut* pvqe) 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 on two violins in an orchestra are found to(tny dv59 vyj44 jx2ao 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 would bring them to the same frequad vvyjx94n( jo 2t5y4ency?

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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 atggo j 3uobheqp+42b ;e+7jw3b twice the speed of sound. The observer hears a frequency oeo u;bg q43b23+ow 7bj gjhp+ef

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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) appp1mo;k xw om)2roaches a stationary observer at one-half the speed of sound. The opo2) kom1wmx; bserver 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.zbe4s(c4pu-b he2c+o:* m bvb zhm i+4yi* xs1 If a listener moves with a speed of 30 m/s away from the sourc4ybhu x b*s 2ievo4i(*csem:b1b p4 cmz+h+z- e, 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-p+t87g74o 6qnabqf7 rh i wowsr:2n +yHz siren. It is traveling at 35 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 standing along the roadside. wyo8wsr2ai+norh +7ft7g6p7qq b:n 4What 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 approa2gz.nvr gp3f 0;2ij pyches with a speed of 30 m/s. The frequenp.g;fr02 j2 g zypvni3cy 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 120 km/h.u 8oq2/. yll;w pzskr5 The train blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency;wp y s5l r82lou/qk.z 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 train blows its 400d8nskt,6t a+ 2+wdr4bep5z x h-Hz whistle. Take the speed of sound to be 340 m/s. What f k2 45+rzpsd6n+,wteatbxdh8requency 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-Hzdcp3x8j w7j 0l whistle. Take the speed of sound to be 340 m/s. What frequency do you hear j 738cpdjlxw0?

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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 itscl ;8uhy+f3 t2olav (k whistle, and you hear a tone of 400 Hz. Take the speed of soundk + tu32fah;c8lolyv( 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 h t*gfa3*p-s+ -s)nte b,cd cx *mju7bsorn is 500 Hz. Assume the speed of sound in air is 340 m/s. What is the frequency heard by an obsen*u+*-sbdte t-sjxps3af )bc 7c*,g mrver 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 speedew2g yd;k3x -lch, /slbj8 n+q of sound in air is 340 m/s. What is the frequency heard by an observer if the observer is approaql/;yhl k2-g jwxed 8 +sb3cn,ching 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:vkh-g5 ,ch q qnvl.7h the speed of an object. A 40-kHz signal is sent out, and a 42-kHz signal is returned. Assume the speed okcgh5hq.v,7 lvq: - nhf 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 shock wave produced by a supersonic airc;sr74kkl bw n-*p9ovdraft 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-ez; gk-uui8 ,gangle of the conical shock wave formu e,g8 k;ui-gzed?

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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 tpqyya((ibgd(to- 2( rsw k+q*o Europe with a Mach number of 1.05 where the air tem(ryq+-wga(bs( iq2ykod(* ptperature is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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