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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 fallg3)d kym1p y2se 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 conducted b(qsw4 nxw8 g435rqslzuv k(: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 steel0* lbymq 7c+fc 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 incddjb5 eqamxnr*1q2*:/uo.v c reases, what happens to the velocity of sound? (Assume that all other factors r5/e:1.oxuj*n c d2qb*m dvqaremain 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 a 200 Hz i4zu:hs5nr03 bpo p c/) w:vkcsound throuw o4z:3u/0ks 5cv:ph n )bciprgh 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 sound, the wavelength a:s3y8.w24mkijy d:bp*i hg i of a 200 Hz sound in 4id s:p y2k38*hmiib.g aj:y wair 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 frequenciefwk :e.+5 *zf zzvley9s 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 locg 7/udk;vnnp (qf. :ess 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 uniformly t5wi3,o8y joiin all directions. If you move to a point twice as far ati ji385ooyw, way from 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, lduk4g p 9/h,f glfh,a.06frl 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 frg9 fs7m pkxg *er 8u)mau-ch51om the source is I. What is the intensity at a distancr-5h8 mfkx gg1 a9me7)* supuce 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 sourclq 3uvnd3t31: wsqd4ne that is radiating equally in all directions. What happens to qd t3sdwlu 34n:q v1n3the 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 thatdxh;nrtss+ a;,5 wiy5 is radiating equally in all directions. Wht5w ;drs,y ;5aih xs+nat 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 increases as a sound bec.ixs3s*y :c:u px6-xuxp 4jvl omes 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 speak-i ;.x dbi)ynber emitting a pure tone. What characteristic of the sound y.;bd i -bx)niincreases?

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What determines "loudness" zt82b 1nd+*ha:e tti vn7ua6i of a musical 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 "p4lv;;qj2qpp/q j bau4v n.z(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 into watq5cgpd q9 hk5: 6nb;dq9v6aiier

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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 ar1qn 8hfu x uu.qk4(-cre

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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 soun2wz;m :su )g*rcll6so 7byg7+v c gbi,d wave generated by the guitar as a result of this gs)27vbly+*gbc,ci7z o ;6mws:glu r 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 whgs;4y clbba+4 ich 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. W+cro 2ea bu56m m;wgzp e5pm9:3ez +oihat are the wavelengths of the three lowest tones produced by this pipepbc+5ue+ae2 pmziwg z9mm;o e :r5o63?

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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 pipevl5co/k xn;tf- ns7 .p of length L is 200 Hz. Which one of the following frequencies will not resonate in the xvo/7s .lp-f ; c5ntknsame 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 funj)tu f47g*oc9 tk f.dvdamental frequency. Which statementv.cf)4t okjg t7du*9 f 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, th*q1t(z8uxlg)nkr)j15v(s m yq b 1qwm ere

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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 s39 mj(dn ;dekc3i6l(g i)yhcv; ec .lthe three lowest lc djvce n m(39dgli(;y6 hk)e3 cis.;tones 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./tp6-+wdz ss )ecowd zlf d)9cat q.(1 Which of the following frequenc-+d) eswcd1w(oqp f t6z/at)9 cdslz.ies 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 clo:8hd 6efrpdiz2h;c(i sed at one end is resonating at its fundamental frequency. Which statement is corri(phf;2 c r86i:hzddeect?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person stands betwe 1 a9e21vdid ot+sbbz7en two speakers driven by the same source. Each speaker produces a tone with a frequency of 200 Hz on z711ovesd9ab2 i+btd 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 shvuo8 )bbp2s hdg9bgvng52f: 5 ould 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 is hv1.ljc r3fko-3 l ++ w-:jz9ajdv hppheard. What happens to the beat frequency if the frequency of one of 3l:-+3wpl kh o1pjcrh9djv +j-za.fvthe 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 exilt5h+;btwm w40+ i fpplains

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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 hear+.avww yg ;s9w/revisn)i;p5 zpne )5d by the observer i;p) 5 vzw /wanvwsne9y5prsi.gi;) +es

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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. Thk js5, dr8yewek32hz 2e frequency heard by the obser235kshwz82dye,k j erver 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 decrease ,7 af(f;;gma uoyiyr:by a fa;gfmyy u(or7, a:fi;actor 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 soundp)-q e0xw4kf-xtqd s 7 of frequency 45 kHz in air is 352 m/s. What is the air t)xq7-w0-4 fp dsteqkx emperature?

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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 air at843hln9ziqsb57 ;sa sdm 8d pa $0 \; ^{\circ}C$ 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 q6 6mp*z.pb bv h3rfo3sound in air is 340 m/s, a bat emits a shriek whose echo reaches it 0.0250 s later. How far away was the object that reflected ba3v.6b p6qfhz * bpr3omck 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 temperatu eti-yxwigz; af/i3hkj-**3 bre 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, tn tdp+kq+uxaqew+s/4h )6zi: f0 c f/whe distance to the lqps +u /w th)fqk dz/ aw+i4cx:6+nf0eightning 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-6xmo 5 .1py nka hvm ,)hi)kb0fnoxv8 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 mvv5nmqd:5y )*o +4dx9e izaudeep well and hear the splash 2.5 s later. How deep is the well? (Ignore air resistance, and assume the velocity of sound is 340 v)iuxoqavnd:e*z9 m+d4m 5 5ym/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 of3 1ajp)i fzmznp :l,3)fn8uop 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 a (zabowz;l8 m(t $23 \; ^{\circ}C$ 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 with ildt)jx m,5q :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 intensitjnr g7w,:g 7r sq7izt2y of a 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 intensities of two sounds withi vjq nyd0 i1tb-f7i1+2j)jm p intensity levels of 70 dB and 40 m1jt7i 1qjivpb f-j)i+dyn02 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 gawvs:e;u6d) m h *ldh *-idt-kdrage is 100 dB. What is the intensity levehd ;) -dlv kh*6w-id*teu:smdl generated 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 thatjm y2nm(/sf11pkqt r4c / v:ev is radiating equally in all directit1r :fm2 veym(/ p4njq k1sc/vons 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 radir*ww3 n um: ,3iiog4kdating equally in all directiik nw ,io4: 3m3d*gruwons 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 assuy7tu6 k yi3s x4.+ c1thy5lvkhmed to be uniformly distributed in all directions. What 1ykhuhxivt47 yt+kyl . 5cs 36is 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 a zm *y(dq sx8qy10gkc.t a distance 5.00 m from a barking dog. What would be the intensity level if two identical yc(0 .gsm1 *d8xk qqzydogs 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 lm):rwnz3xox5m 2rq)u iu +q 0dz.c.ovevel is 60 dB. What is the intensity level (in dB) at a point 2.0 m from the source? mo5vrnrq.d)ux03u.z+ ) xwiz om c2q : 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 dBz75r5ina cp+b. At what distance 5c+ n5pazib7rwill 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 a frequency of 1200 Hz. Wha(,t+0iix b yvyu ;wj1mt is the frequency of the fourth harmonicy x+0i1u; mywb,itvj(?

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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 o8:e csi+cg*8enwnm tz ;gf,5 rpj.h5fpen pipe is 900 Hz. What is the length of the ,85fz.ncwhg *tgc+e5s: mpr8j i n;efpipe?

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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 40 +70dz..qkwfombi ga0i71wfd)p djc;0 Hz. What is the frequency of the lowest tone that will resonate in an d.o7 wdj0i)0m7 dw;+c fg1b.pk iqfa zopen 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 the velocity of soun.e/thn8fmiq;*t xvsqg j-/) qd in air qx .qjfetni*m;/qt g)-v s/8his 340 m/s, 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 a room where the tempe)-ncsy o; b1hy .pkiy0rature 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 Hz. Wi7nle8w 6i7y4/ yuyh jhat is the free/4l yin87whj 6yyui 7quency 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 on one end thxw cjd)l+()( gx jle+hat will have a fundamental frequency of 60 Hz on a day when the velocity of sound is +lw ))l((jgdcex +jhx 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/ i2a f*bdven3 where the 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 rooml7j)ml ad6s+ n 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 of sound in air c yx:()gn4 nhnis 340 m/s. What is the fun)(hgx:n cn4 yndamental 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 ui+m. zjk dw8*k1+thbk) ydd8open and the other is closed on one end. If the fundamental frequency of the open pipe is 300 Hz, whab+m* jd)z ht8d 8k1i kdw.yu+kt 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 whers t( p 4-ujfiihbwyxpz+u**f ,ie1(/je the velocity of sound is 340 m/s. How much z( hpf js(iu-w*x+tfiy,bu ep14 /j i*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 driven by the same frequency of wj(vqu* ,uev 4500 Hz. If the distance from a person to one speaker is 5.00 m and the person detects little or (jvuwq,*uev4 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 44kq5 7i.5nn3thf)k yxy 4 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 tuning fork to tun*wzr11 nim(f nz,;lsde the frequency of a musical instrument. If the tuner hears a beat frequency of 2 Hz, what is the frequency of the instrumen1m,n*d i;(zn1wsf l zrt?

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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 arei1qv* t84i pli 6 m and 7 m respectively. What beat frequency is heard when the horns are sounded on a day when the veip iq*1v t84lilocity 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 tck*0c.t 9 rjmpo produce a beat frequency of 2 Hz wp9cc .*r 0mktjhen 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 approaches a stat4a9+xlkkrf wxwd0 m- :1kcmfec5;.u aionary 1000-Hz sound source at twice the speed of sound. The observer hears a fre:ka-9m ekwudmr5x fl +fx0 a ;1wkc4c.quency 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 1000 Hz) approaches/, yq uo;msd087f0.nv- 1oshet bmz cy a stationary observer at one-half the speed of sound. The observer hears a frequeo,m/-.utq fhy 1zs d0sobn8y; 7 v0mcency 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 speed of bb1vhmn5 6.klt /z o)z30 m/s away from n)/.6vkb 15hz tzmoblthe 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 800xrn .xj5 sber.tph6ap 5 (ecc- i)d4.r-Hz siren. It is traveling at 35 m/s on a day when the speed of sounde-hp rs5)eci.cp(dta .n rxb j.4rx5 6 through air is 340 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 whe4c rlesz8 i3o6n a train approaches with a speed of 30 m/s. The frequency of the train horn is 600c 8r64sleoi 3z 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 tctv;3yp vmtteu 14m. y-(g1ouoward you at 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What fre1t 3.1ym m ;p4(-ugcutyvetov quency 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 tprq1 w13 i9rsarain. The train blows its 400-Hz whistle. Take the speed of sound to be 340 m/s. What frequency do you hear? 19ra1rswq3 ip

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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 4yx3c+m.*kot,vo yfq at 120 km/h. The train blows its 400-Hz whistle.,ytyv3foo *4cx+ q.mk Take the 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 y r9va1egp6r r*ou hear a tone of 400 Hz. Take the speed of sound e1r6 vpar9rg* 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 tkjwuswl4t i/bhg i/o.sv/c n4t95* s 0rain 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 obserisnssw /.4lhi*9/okb0tw 4 /g5jt uc vver 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 sps0.xzv2 vkpi3 ebjk,4qda m:-eed of sound in air is 340 m/s. What is the frequency heard by an observer if the observ2d kej p,0s4b v. imz-kqv:xa3er 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 detflkfu0x . ,,cz s6l9paermine the speed of an object. A 40-kHz signal is sent out, and a 42-kHz signal is returned. ,,kf96x slz apfucl.0 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 conical shock wave produced by a supersoniyakz 1sx6,fyb -2gktdl97 9hgc 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 o x- bt6tj2,9jrjouzu/pja* s5f Mach 1.4. What is the half-angle of the conical shock wave formedutz 2* 9,5t rjpj-6jb /osuajx?

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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 tho gmjn/3p3/w2m v jd;he United States to Europe with a Mach number of 1.05 where the air temperatum;3hnojgjdmw v3p2 //re is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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