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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 . up+fsvfz4m/x/ *l-v ir0 ywwfalse 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 faso9d33 nle .td/ ;k/d*hekvvkstest 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 stee5l7qi5 k3gkanh 1bb/(uxvas 2l 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 amc(y6h.fraqdek pg:i l *1 .om98,wspir increases, what happens to the velocity of sound? (Assume that all other factors remain consd q mi 1 wc(oy6pr.ehpm*lak9f:.8g,stant.)

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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 sound throu0ev h rmgp8qhk sl/woork; wg/h 1:-:y ak.6;rghh1eql/ w;g0h a86r:oy prgkhrsk ;.k vo:/w-m 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 oss yk5u q3gkuuk,a+;2f a 200 Hz sound in air iyuq5;su+2,a 3kkk sgus

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Sound vibrations witk)x3; eapc ;vmh frequencies 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 ato(y4 0 4fuk,3oauups.kk sy6re 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 in all directions. p/; .bq)c b7ipn cl*vy If you move to a point twice as far aw ilvqb. 7*ynpb/;c p)cay 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, intensity is prodqgmep m1 z .;)fab;za(fc **lportional 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 oiy74*4-r;cm vnpaw5 ( qimetfrom the source is I. What is the intensity at a di5pvomamq4;yti -* 7wn e (c4irstance 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 source that is radc0f fua2h516g jr/ vboiating equally in all directions. What happens to the intensityo 1v6faf2ch50gbu/rj 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 as51 d)lt1vkyj ll directions. What happens to the intensity level of the sj1 )t1v5 skydlound? 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 wcp v92g hz6)tas 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 towar,0slv1*hd8j sim+r nrd a speaker emitting a pure tone. What characteristic of ts+,v*1nhir0rls 8 jdmhe sound increases?

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What determines "loudneta0gon2l (s7 sz4 hqn,ss" 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 "pitckqp*m*)p:2 6b8 p 4yonrg:gzfqa7 iygh" 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 wa. b 891y5bwqvf4df yyater

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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 1pc 2g 9q)xptiare

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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 sofkj4dwl/9 4qqb(d+ j sund wave generated by theq4/+jk4w dslbdf j(9 q guitar as 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 pipeko s ciyr;20z3kzmr:7 which 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 plu uutio1 m//p88xp6are the wavelengths of the three lowest tones prod 8uup p p/i8mto/xul16uced 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 pipe of length L is 200 Hz. Which one ijv xz**jpd//.+ xh k vvf.gk+of the +/vv*kghj ./jfxk ipx zv*+. dfollowing frequencies 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 freq(:pk/;wlg qnwn-2 pu kep9,bquency. Which statemen9ke/ lkpbnq2:;(qpp- wn,g wu t 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 ope5,xslyoi 4y*8cl f7u3 f sb9vit38 maen 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 osw2a,(ncceckpp o 138 six 3o2f the three lowestc pe32p n (wa38ckiocs1s 2xo, 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 piph54z-kvdaz1 tu1 +oga uxh25me of length L is 200 Hz. Which of the following frequencies wax1a t+zz5hmd-kv u51o 42ghuill 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 f/iou 6qbsg)ed /;;km1hme+ iu requency. Which statement 1 d) gkm6bo/;ue/m i h+eusi;qis 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. : 2znn1vn b7d;je 8ninEach speaker produces a tone with n izbe 1j v87nn2:dnn;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 beats, the two sou/gwjimqq;z7 6rei5hkn:i ) zjegp) 71nd 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 togethn dy qxx(wp/ *xie64)ter and a particular beat frequency is heard. What happens to the beat frequency if the frequenc 4/(nyx6d* eptxwqi x)y 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 explaind/ gw.:k iqd-j gieu(l7;8clx s

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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 xjj38p+ q+-w 9qwcd yqobserver 9c+xwqjwy 8j-+pq3dq 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 stationary nft t573 cce+yobserver. The frequency heard by the obs+c7 n 3ecfty5terver 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-anxn 748w3x-wro cq7e fagle will decrease by a factxr7w f4c no7-8awe x3qor 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 35 his lc3pgi , (r mn+z4sk8)co6zkz6d72 m/s. What is t (z6ni c3+z7,l 6dhcpmgok8 i) zk4rsshe 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 ofc mti;plyb+z 67u,tf : 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 in air is 340 m/s, a bat h1 5zgp,a2xlfemits a shriek whose echo reaches it 0.0250 s later. How far away was the object that reflecte h12fxa5l ,pgzd 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 heaq3,kle esh6cm/gx u j5ot/z1 4g9md e0jdm)i7r 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 nc.uf pqh4x/fbirw27 5se0v +lightning, the distance to the lightning stipsq5x fr0c4we hvuf2nb/ .7+rike 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 ax-qhd6)p e qd4 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 deep well and hear the splash 2.5 s later. How dee:8uibi , ,*zolrbhu8m p is the well? (Ignore air resistance, and assume the velocity of sound is 3 i r,8l,u*mohibu8 z:b40 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 frequency b3dj /1n)(j4 b-fbohqdro7yi 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.w8a sz5eklwjks/w+ q ,ip5)$23 \; ^{\circ}C$ 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 intensity yezao0xzwp1 g8+/p ys:w) ;wf:/p jyu$10^{-3} \; W/m^{2}$?

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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 c ghq3:26 bok4gwlh;f70-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 withl,l ria u +(e2zl+6oyb intensity levels of 70 dB and ibla eyul+( o2+6z,rl40 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 b5cu (44taajsz 6b 9shby 15 engines in a garage is 100 dB. What is the intensity leveab4 (5jshsbuztc9 4 a6l 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 that is radiating eq roay yx1lx/ fr5(x*3kually in all directioka3yf*lxrx/o1 xr 5( yns 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 i4 fct-:7zzmf ts radiating equally in all directim4fc:f 7tt -zzons 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 powikio*,m dssnt3m;, f 4er, which is assumed to be uniformly distributed in all directions. What is the intensity level at a distance 5.00 m ffk si34 ;mo,mtn* is,drom 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 ba 62n2tb2 g s358gsfrnw3mc qqvrking dog. What would be the intensity levelvf8b62gcm2 n2s s 33wnqtqg5r if two 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 sourcexc.a):2lx/s ym)rr tz the intensity level is 60 dB. What is the intensity level (in dB) at a point 2.0 m from the source? Assume that the source radiatrtxsx :c/ml)y .za2 )res 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 dip8z-tyvb:yff ly -1n nrin+z4 5 (b3w0gbt+kbstance will it be 75 dz rt +ybpn-5:f41n b0g38b-b tyv nyi+flzwk(B?

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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 uv;y8ah6vt9erth x/- 1200 Hz. What is the frequency ; x6tu8-ehythv r9/vaof 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 harjwc:x8 bcc2m+xsz+c6 monic of an open pipe is 900 Hz. What is the length of the pip :xcxcczbj2+sc 6+8 wme?

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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 97vd7:yw6rk /jgijb mopen pipe of length L is 400 Hz. What is the frequency of the lowestjm 7v7y/ibgwjr:6k9d 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 bon zbvkb)5otl.b/ (;zb 9aa5ahth ends has a length of 0.80 m. If the velocity of sound in air is 340 m/s, what is the frequency of thlbv .(5) 5a;bazan9kbbz/ohte 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 ,(her/g 5x * z-aj1jfnbf-njoin a 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 closed at one end isw+kss-nta .x-xch. +s 330 Hz. What is the frequency owsn. c++txxh ss -a.k-f 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 that will haveuy :6vmb2 9sck0( vevx a fundamental frequency of 60 Hz on a day when the velocity of sound isu 0vyxvcvb e92s6 k:(m 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 rlybl5cje.qr9f 6092t y jve1 a room 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 room where the temperature is 36k50xhpjuj i cigu7 ,$20 \; ^{\circ}C$. 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 wheb,c6fn;f5h / k16ap ggfqlqf1n the speed of sound in air is 340 m/s. What is the fundamental frequ6gfnhfp /5;c ,fba6lfgqk1 1qency?

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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: o3x1azq7rk -a s8zt+m vne is open and the other is closed on one end. If the fundamental frequency of the open pipe is 300 Hz, what is the fundamv1aa8zs7 -x +tk 3qzrmental 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 a5g6oyf .(o 32 kj8hnvkfv o+yr frequency 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(v jhv2r6.fnk 35goo+yk o8fy 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 d)pralf l u7 k4uxtla tpco-;7ci+ 58i;riven by the same frequency of 500 Hz. If the distance fro p;u cxll+ -i;rk4tlf u)7pc7aati58o m a 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 4404kny2oe,41hyn j kn+*c*dnw a 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-Hz tuning fork sdc :yqr;.kae9q/cu3 to tune the frequency of a musical instrument. If the tuner hears a beat frequency of 2 Hz, what is the aq: rcsyd/k.; 3e9cq ufrequency 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 byvf1iz7w8mr zgyv6 q:4 two horns are 6 m and 7 m respectively. What beat frequency is h gi4z18zm q6fyvr:w 7veard 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 on two violins in an orchestra arey59bl a (lhqae4-k5nd 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 strings would bring the-5aenl5l b(ah 9kdyq 4m 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 s-jdu*j/( huced .e :onound source at twice the speed of sound. The obseh/ dc*:ndj.ouuje -(erver 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 1000 Hz) appro9/ rshwg;wt. zaches a stationary observer at one-half the wzst gw/h9;r. speed 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 a speed of 30 m/s dea.z.yr4r7 saqe/ya t 5k/hx w3q,)y)onb4 kaway from the source, what is the frequency heard by7 4 4ey,n/sx ybew./hka)q ) q.zkaoart 3rd5y 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 onm2jpv p2 o v1yp2/oij( a day when the speed of sound through air is 340 m/s. The car approachym 2(j/ v1 oov2ip2pjpes 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 hqdx(vt ukbe/gw( nd iyxyn26 2 1)5,waeard by a stationary 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 sou ,v x uqyd6nx(w22gi15k ba/nw)y(det nd 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 blows its 4006ha jz(9,i9a 1,rw7phxmmiob-Hz whistle. Take the speed of h a 19im,oap6mr,ihjx7zbw( 9sound 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 t bk-*.vt4 shmws kw.+qdzk9 ;vq;+z ysrain. The train blows its 400-Hz whiks 9 km+.dtq-wh;kq v +*y sswv;zb.4zstle. 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 away 6 um)j:m8v xmopv a/5rfrom you at 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound to vu8 a65x)m :pmrj/omvbe 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)7 g f;r-bc;bg:maq(yrg)zyyou hear a tone of 400 Hz. Take the speed of sound to be 340 m/s. What is the actua:cgqy -f(rg);b ryma ;bg)y7zl 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. Assume the speed of sound in air is 34-w +fs: tz 4ythpi,:ku0 m/s. What is the frequency heard by an observer if the observer i -yz tufsp:+:wik th,4s 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 a8nk+u /v9qc)p)f yezspeed of sound in air is 340 m/s. What is the frequency heard by an observer if the observer is approaching the train with a speed zau)p)c/ nkf qy9 +8evof 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 o wfi-rmrd)e (qtyri;88zo:3out, and a 42-kHz signal is returned. Assume the speed of sound is 345 m/s. z3-8yrfwirei dq;8oto :) m(r 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 zf0 k1km)vz9ka:s 5 1kw3yusbaircraft 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-angle of the conical sho(j3+t4wg ex hrck waj thg+3ew(4xr ve 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 tomexg4vhg5aqdm,zbu6z3/k:y u(2twiw32 e 3u Europe with a Mach number of 1.0uw: gykz/5bgvd3i3mx 2th43mu2(uz ,ea eq 6w5 where the air temperature is $5.0 \; ^{\circ}C$. What is the speed of the plane?

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