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习题练习：Physics Unit1: Introduction Measurement & Estimating
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 55 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/test55.html
 作者: admin    总分: 76分  得分: _____________

答题人: 匿名未登录  开始时间: 22年07月19日 20:45  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/70) 切至整卷模式 搜藏此题  
第 1 题组 (共 70 题 70 分)
  Four students measure the mass of an objev ru) a(i7 v fibz0iqb9 3i)ve-zetw44ct, each using a different scale. They record their resf 4ib zb9iv4t7a3i) vwqe0vrizue ()-ults as follows:
Which student used the least precise scale?
Student Mass (g)
A 49.06
B 49
C 50
D 49.2


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2#
 
单选题 ( 1.0 分) (组内2/70) 切至整卷模式 搜藏此题  
  Four students measure the mass of an object, each using a different scale. wc7r e l:(cb1/byrht2 Theyc12h lrb:/wte7 yb (cr record their results as follows:
Which student used the most precise scale?
Student Mass (g)
A 49.06
B 49
C 50
D 49.2


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3#
 
单选题 ( 1.0 分) (组内3/70) 切至整卷模式 搜藏此题  
  A useful method of expressing very small or very large num+-jff1o i sgfac - n n02q5x:tx-nzs6rbers is

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4#
 
单选题 ( 1.0 分) (组内4/70) 切至整卷模式 搜藏此题  
  All of the following are bamlcxf viqf(9b(j o26 4se units of the SI system except:

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5#
 
单选题 ( 1.0 分) (组内5/70) 切至整卷模式 搜藏此题  
  Select the list which contaiam 1 3+kelmb+nns only SI basic units.

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6#
 
单选题 ( 1.0 分) (组内6/70) 切至整卷模式 搜藏此题  
  How many basic units does the Se0mp ) e)w6,w,;oznwomt z-1zq rcl;dI system have?

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7#
 
单选题 ( 1.0 分) (组内7/70) 切至整卷模式 搜藏此题  
  The base SI unit of time wlha.-ib5t+k 81gsb-ye * r agis

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8#
 
单选题 ( 1.0 分) (组内8/70) 切至整卷模式 搜藏此题  
  In the CGS system, what are the fundae5nh2ki65 fp1qax (n nmental units?

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9#
 
单选题 ( 1.0 分) (组内9/70) 切至整卷模式 搜藏此题  
  The metric prefix for one one-th88q*mg )t( hi 5r atu5dr5onlkousandth is

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10#
 
单选题 ( 1.0 分) (组内10/70) 切至整卷模式 搜藏此题  
  The metric prefix for one one-hundrefzcz s8b.;g9 go.;e usdth is

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11#
 
单选题 ( 1.0 分) (组内11/70) 切至整卷模式 搜藏此题  
  The metric prefix for rxb -9vvih4z(one thousand is

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12#
 
单选题 ( 1.0 分) (组内12/70) 切至整卷模式 搜藏此题  
  Express the number 0.02 djr5wvp:zv + 8kays using a prefix.

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13#
 
单选题 ( 1.0 分) (组内13/70) 切至整卷模式 搜藏此题  
  What is the conversion fj2v1 m2p 8r(xdodzu- b*z/zga actor between $km/h$ and $m/s$?

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14#
 
单选题 ( 1.0 分) (组内14/70) 切至整卷模式 搜藏此题  
  What is the conversion facto;neew:56 j3i97oyeyexg;g)qm y do p9r between $km/h^2$ and $m/s^2$?

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15#
 
单选题 ( 1.0 分) (组内15/70) 切至整卷模式 搜藏此题  
  What is the conversion factor betw,ptauh 9cs f+.s28 xk)p-bjbleen $cm^{2}$ and $m^{2}$?

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16#
 
单选题 ( 1.0 分) (组内16/70) 切至整卷模式 搜藏此题  
  The position, x, of an object is given by the equrd. dtf:l;.qtu6u5m8 wzfs -oation $x = A + Bt +Ct^2$, where $t$ refers to time. What are the dimensions of A, B, and C?

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17#
 
单选题 ( 1.0 分) (组内17/70) 切至整卷模式 搜藏此题  
  What is the percent unwnj ch t8cj14,0fa3wucertainty in the measurement $2.58 \pm 0.15 cm$?

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18#
 
单选题 ( 1.0 分) (组内18/70) 切至整卷模式 搜藏此题  
  What, approximately, is the percent uncertainty for the measurement 5.2 mA?;jkofex9 8hr5u 1 io yw*ko9c0

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19#
 
单选题 ( 1.0 分) (组内19/70) 切至整卷模式 搜藏此题  
  What is the percent uncertaiy moc-au2krd:w6h e .3nty in the area of a circle whose radius is $1.8 \times 10^{4} \; cm$?

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20#
 
单选题 ( 1.0 分) (组内20/70) 切至整卷模式 搜藏此题  
  What is the volume, and ua2*n(3lfx- k9t ct mpits approximate uncertainty, of a sphere of radius $1.96 \pm 0.01 \; m$?

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21#
 
单选题 ( 1.0 分) (组内21/70) 切至整卷模式 搜藏此题  
  The number of significant figures in 10001 dkkv)y9a 1h f b guct(:ht1,7uis

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22#
 
单选题 ( 1.0 分) (组内22/70) 切至整卷模式 搜藏此题  
  The number of significant figures in 0.015p*26n *9lv gal 3gx;lr* lecie00 is

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23#
 
单选题 ( 1.0 分) (组内23/70) 切至整卷模式 搜藏此题  
  The number of signifil.jqtl5gq (i*c6)rq rcant figures in 0.040 is

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24#
 
单选题 ( 1.0 分) (组内24/70) 切至整卷模式 搜藏此题  
  Which of the followingtf2 js4vnmt -2 has three significant figures?

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25#
 
单选题 ( 1.0 分) (组内25/70) 切至整卷模式 搜藏此题  
  What is the sum of $2.67 \; cm + 1.976 \; cm + 2.1 \; cm$ considering significant figures?

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26#
 
单选题 ( 1.0 分) (组内26/70) 切至整卷模式 搜藏此题  
  What is the difference 103.2 4zpq /cb,eet5 Volts and 102.24 Volts if they respectively represent two measurment values of Volte 2/tbze,qp 4cage?

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27#
 
单选题 ( 1.0 分) (组内27/70) 切至整卷模式 搜藏此题  
  What is the area of a rec9nbrq4ass8un8 r,9 xz tangle with dimension $12.56 \; cm$ and $2.12 \; cm$?

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28#
 
单选题 ( 1.0 分) (组内28/70) 切至整卷模式 搜藏此题  
  What is the result of 2.43 dividoss,/jijf-m 2p b9m2 fed by 4.561 considering significant figures?

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29#
 
单选题 ( 1.0 分) (组内29/70) 切至整卷模式 搜藏此题  
  What is the cosine of) kbgh)rx iv;b yb1+c- $55 ^{\circ}$?

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30#
 
单选题 ( 1.0 分) (组内30/70) 切至整卷模式 搜藏此题  
  The length and width of a rectangle are 1.125 m and 0.606 m, respectivgnam r7z1 ;5lpcv:gh4 ely. Multiplying, your calculator gives the product as 0.68175. Rounding properly to the correct number of significant figures, the area shpnah rlg:mgzc 1 54;v7ould be written as

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31#
 
单选题 ( 1.0 分) (组内31/70) 切至整卷模式 搜藏此题  
  The length and width of a rectangle are 1.125 m and 0.5ify)+ j xcn 2en1d5gj606 m, respectively. You calculate the rectangle's perimjc5+ij5dfny ) ngx 2e1eter by adding these and multiplying by two. Your calculator's display reads3.462 To the correct number of significant figures, this should be written as

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32#
 
单选题 ( 1.0 分) (组内32/70) 切至整卷模式 搜藏此题  
  A rectangle is 3.25 m long and 1.5 m m+(lkys;ucs9*s9(x ov cu0vx wide. What is its area?

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33#
 
单选题 ( 1.0 分) (组内33/70) 切至整卷模式 搜藏此题  
  A rectangular garden measures 15 m long ao.j p 96at2u+doftzo6 nd 13.7 m wide. What is the length of a diagonal from one corner of the garden to aodt.j+66 puzo9t2fo the other?

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34#
 
单选题 ( 1.0 分) (组内34/70) 切至整卷模式 搜藏此题  
  Select the smallest val:hj2ikal - 8jlue.

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35#
 
单选题 ( 1.0 分) (组内35/70) 切至整卷模式 搜藏此题  
  Write the number 0.00045 in scientific notation (nox,j +v,m:p3 ag;kqa 9hleq/power of ten notation)

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36#
 
单选题 ( 1.0 分) (组内36/70) 切至整卷模式 搜藏此题  
  0.0001776 can also be expressivd24oq)cjnwwiu y w-,h1 8(ked as

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37#
 
单选题 ( 1.0 分) (组内37/70) 切至整卷模式 搜藏此题  
  4567.89 is properly exprpv7ve m)eur x *zz33, j(w6pxlessed in scientific notation as

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38#
 
单选题 ( 1.0 分) (组内38/70) 切至整卷模式 搜藏此题  
  Convert $1.2 \times 10^{-3}$ to its decimal notation.

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39#
 
单选题 ( 1.0 分) (组内39/70) 切至整卷模式 搜藏此题  
  Write out the number z 8rquu3; l6g +i5/b krifn)hqvcr:.gchri4 0$8.42 \times 10^{-5}$ in full with a decimal point and correct number of zeros.

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40#
 
单选题 ( 1.0 分) (组内40/70) 切至整卷模式 搜藏此题  
  What is the result o h-nf +8o7g:k*tlqpy:rt ki:nf $(0.410 + 0.021) \times (2.20 \times 103)$?

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41#
 
单选题 ( 1.0 分) (组内41/70) 切至整卷模式 搜藏此题  
  Write the number 13.5u p (7korxjhk;;;ttn i2+ne(y gigameters as full (decimal) numbers with standard units.

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42#
 
单选题 ( 1.0 分) (组内42/70) 切至整卷模式 搜藏此题  
  100 mL is equivalent to which of the foll 8ghyn9 zz: /r(wbs*. /prsqj -enzaq,owing?

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43#
 
单选题 ( 1.0 分) (组内43/70) 切至整卷模式 搜藏此题  
  How many grams is forty milw80mii, a7.xw ojpc2 dligrams?

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44#
 
单选题 ( 1.0 分) (组内44/70) 切至整卷模式 搜藏此题  
  How many meters is sixhezll.:b z.* ifq a10bno58ywty kilometers?

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45#
 
单选题 ( 1.0 分) (组内45/70) 切至整卷模式 搜藏此题  
  $1 angstrom = 10^{-10} \; m$ and $1 \; fermi = 10^{-15} \; m$, what is the relationship between these units?

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46#
 
单选题 ( 1.0 分) (组内46/70) 切至整卷模式 搜藏此题  
  $0.00325 \times 10^{-8} \; cm$ can also be expressed in mm as

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47#
 
单选题 ( 1.0 分) (组内47/70) 切至整卷模式 搜藏此题  
  Which one of the following . fia*lbt4 bvwaj4;9d is not equivalent to 2.50 miles? ($1 \; mi = \; 1.609 \; km = 5280 \; ft$, $1 \; ft = 12 \; in$)

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48#
 
单选题 ( 1.0 分) (组内48/70) 切至整卷模式 搜藏此题  
  If you are 5 feet 10 inches tall, what is your height in meters? (ht;sd9 b02 jmj$1 \; in = 2.54 \; cm$)

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49#
 
单选题 ( 1.0 分) (组内49/70) 切至整卷模式 搜藏此题  
  If $1 \; inch = 2.54 \; cm$, and $1 \; yd = 36 \; in$, how many meters are in 7.00 yd?

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50#
 
单选题 ( 1.0 分) (组内50/70) 切至整卷模式 搜藏此题  
  A hot air balloon rises to an altitu;bup a,4su ztfq xb *3e6 -zwi8qc9tt*de of 600 fathoms. What is this height, in fet* 3x6-zqsa9c4fbut*8, pb;i zuwt qeet? ($1 \; fathom = 6 \; ft$)

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51#
 
单选题 ( 1.0 分) (组内51/70) 切至整卷模式 搜藏此题  
  The average life of an animal/2 s k tu,odxyvq;lna*b4vz5( is 70 years. Assume one numerical figure, write this in power of (qktx sb;u5*2/v a, dvyo4nzlten in seconds.

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52#
 
单选题 ( 1.0 分) (组内52/70) 切至整卷模式 搜藏此题  
  The mass of an electrovrv8g/ 8jpse74 7 twymn is $9.1 \times 10^{-31} \; kg$. How many electrons will make a mass of 1.0 kg?

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53#
 
单选题 ( 1.0 分) (组内53/70) 切至整卷模式 搜藏此题  
  How many m/s is $50 mi/h$ equivalent to? ($1 \; mi = 1609 \; m$)

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54#
 
单选题 ( 1.0 分) (组内54/70) 切至整卷模式 搜藏此题  
  How much longer (percentage) is a 100 m dash than a 100 yd dashr1k q kw/mj)8gvxs )5y6gi 6aakhaw52 ? ($1 \; yd = 0.9146 \; m$)

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55#
 
单选题 ( 1.0 分) (组内55/70) 切至整卷模式 搜藏此题  
  Which is the largest area?t+mej(368me k*fc bkj

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56#
 
单选题 ( 1.0 分) (组内56/70) 切至整卷模式 搜藏此题  
  If $1 \; inch = 2.54 \; cm$, how many square centimeters are in 1.00 square inch?

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57#
 
单选题 ( 1.0 分) (组内57/70) 切至整卷模式 搜藏此题  
  Express the following sum w2g 39kvi/kiy with the correct number of significant figures: $1.00 \; kg + 1531 \; g + 2.54 \times 10^{4} \; mg$.

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58#
 
单选题 ( 1.0 分) (组内58/70) 切至整卷模式 搜藏此题  
  A football field is 120 ydjn* yaxb.e ut 6k7.iv/ long and 50 yd wide. What is the area of the football fieldeiatv6 .u/ kxy7bn*j. , in $m^{2}$, if $1 \; yd = 91.44 \; cm$?

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59#
 
单选题 ( 1.0 分) (组内59/70) 切至整卷模式 搜藏此题  
  A ball has a radius of 3.23 cm.jhc ) ;/hc kg b,*twwyza44*fk What is the volume of the ball in $m^{3}$?

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60#
 
单选题 ( 1.0 分) (组内60/70) 切至整卷模式 搜藏此题  
  A thick-walled metal pipe of lenggy9 pp6n7v9e)s izzb7th 20.0 cm has an inside diameter of 2.00 cm and an outside diameter of 2.40 cm. What is the total surface area of the pigv e9i)z9y7nzbsp76 ppe, counting the ends, in $cm^{2}$?

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61#
 
单选题 ( 1.0 分) (组内61/70) 切至整卷模式 搜藏此题  
  The radius of the Earth is 3963 mi. What is the surface area of ya bhd)h5q3p.2 b++v)g t:dvfu8f4itnv3ujithe Earth in square qi 3jtf)f2uyi3 +u4dn)b5pvg8d b .:h+vtahv meters?
($1 \; mi = 1609 \; m$)

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62#
 
单选题 ( 1.0 分) (组内62/70) 切至整卷模式 搜藏此题  
  The average density of blood is qa(r)8 0ywx10fi t5xh gv*eep $1.06 \times 10^3 \; kg/m^{3}$. If you donate a pint of blood to the Red Cross, what mass of blood have you donated, in grams? ($1 \; pt = 1/2 \; L$, $1 \; L = 1000 \; cm^{3}$.)

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63#
 
单选题 ( 1.0 分) (组内63/70) 切至整卷模式 搜藏此题  
  The mass of Mars, $6.40 \times 10^{23} \; kg$, is about one-tenth that of the Earth, and its radius, 3395 km, is about half that of Earth. What is the mean density of Mars in $kg/m^{3}$?

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64#
 
单选题 ( 1.0 分) (组内64/70) 切至整卷模式 搜藏此题  
  Concrete is sold by the cubic yard. Whaw t./q *dvx1jst is the mass, in kilograms, of one cubic yard of concrete that is fiv/stq*d.1 jwvxe times as dense as water? ($1 \; m = 1.094 \; yd$, and $1 \; m^{3}$ of water has a mass of 1,000 kg.)

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65#
 
单选题 ( 1.0 分) (组内65/70) 切至整卷模式 搜藏此题  
  An average human has a heart rate of 7 ddi+09oqhs 5f0 beats per minute. If someone's heart beats at that average rate ov + f0siqo9dh5der a 70-yr lifetime, how many times would it beat?

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66#
 
单选题 ( 1.0 分) (组内66/70) 切至整卷模式 搜藏此题  
  A large school district has 300 school buses. If each school bus is used 3rkyd(1:-rs t x hours each day, the average speed of the school buses is 15 mi/h, and the fuel economy of the buses is 10 mi/gal.rdtx syk-(r :1 How much does it cost to run these buses in 22 school days if gasoline costs $1.20 a gallon?

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67#
 
单选题 ( 1.0 分) (组内67/70) 切至整卷模式 搜藏此题  
  A person stands 35.0 me8a kh *9r9dg(9q eoi)gedub3q 4a+gf from a flag pole. With a protractor at eye level, he finds that the angle at the top of the flag pole ekdag4 uo +fi9qhb 9rge)ae 38d9 (*gqmakes with the horizontal is 25.0 degrees. How high is the flag pole? (The distance from his feet to his eyes is 1.7 m.)

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68#
 
单选题 ( 1.0 分) (组内68/70) 切至整卷模式 搜藏此题  
  Starting from city A, a car drives 250 miles east4efnhm epz gp1.n:* -v to city B, then 300 miles north to cmn4p:zenh f *pv-e g.1ity C, and finally 700 miles west to city D. What is the distance between city A and city D?

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69#
 
单选题 ( 1.0 分) (组内69/70) 切至整卷模式 搜藏此题  
  The last page of a book is n-ctwn5riboi 6a w*/2w hbu44 oumbered 764.(each sheet is double-sided) The book is 3.00 cm thick. What is the average thickness of a 46w2bw oci w4itb/* ron-u5h asheet of paper in the book, in centimeters?

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70#
 
单选题 ( 1.0 分) (组内70/70) 切至整卷模式 搜藏此题  
  Wall posters are usually sold b q3b55 5v hbg((kvlvacurled up in cylindrical cardboard tubes. If the length of thvq 5 (5 kab(glhbv3b5ve tube is 84.5 cm, and the diameter of the tube is 2.40 cm, what is the area of the poster, in $cm^{2}$? (Assume the poster doesn't overlap itself.)

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71#
 
填空题 ( 1.0 分) (组内1/6) 切至整卷模式 搜藏此题  
第 2 题组 (共 6 题 6 分)
  How many significant figu 1q ic:*n/6ngtz +1 cp5plu3*vb phkjsres do each of the following numbers have: (a) 214   , (b) 81.60  , (c) 7.03  , (d) 0.03  , (e) 0.0086  , (f) 3236  , and (g) 8700  

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72#
 
填空题 ( 1.0 分) (组内2/6) 切至整卷模式 搜藏此题  
  Add $9.2 \times 10^3s + 8.3 \times 10^4s + 0.008 \times 10^6s$ =   $\times 10^5s$

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73#
 
填空题 ( 1.0 分) (组内3/6) 切至整卷模式 搜藏此题  
  Express the following sum with the correct number of significant figurvqf.vhs - /td)es: $1.80 \; m + 142.5 \; cm + 5.34 \times 10^5 \; \mu m$ =    $\times 10^2 \; m$

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74#
 
填空题 ( 1.0 分) (组内4/6) 切至整卷模式 搜藏此题  
  Determine the conversion factor betweoxi uxo.8 pcl * sl,)z7h,wul)en
(a) $1km/day$ =    $mi/h$ given that $1 \; mile = 1609 \; m$
(b) $1m/s$ =    $ft/min$ given that $1 \; m = 3.28 \; feet$
(c) $1km/h$ =    $m/s$

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75#
 
填空题 ( 1.0 分) (组内5/6) 切至整卷模式 搜藏此题  
  A light-year is the da*-(ohmv mti z v/ *j+6c8kofdistance light travels in one year (at speed = $2.998 \times 10^8 \; m$).
(a) How many meters are there in 1.00 light-year?    $\times 10^{15}$
(b) An astronomical unit (AU) is the average distance from the Sun to Earth, $1.50 \times 10^8 \; km$. How many AU are there in 1.00 light-year?   $\times 10^{4}$

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76#
 
填空题 ( 1.0 分) (组内6/6) 切至整卷模式 搜藏此题  
  When doing a physical experiment, Peter measures the mass of an ob *ud:yu8 twvw,ject ten times. All of the measurements lie bwdv*u t,y :wu8etween $44.7 \mathrm{~g}$ and $45.3 \mathrm{~g}$. What should him quote as the absolute uncertainty in the mass? $\pm$  (数值)  $g$ (Only put numerical value in the blank without any units or signs)

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