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북스힐 일반물리학 8판 cutnell johnson 8th 솔루션 Report


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북스힐 일반물리학 8판 cutnell johnson 8th 솔루션

북스힐 일반물리학 8판 cutnell johnson 8th 솔루션 입니다. 총 266페이지 입니다...

Chapter 1 ? Student Solutions Manual 3. Using the given conversion factors, we find (a) the distance d in rods to be d = 4.0 furlongs =

( 4.0 furlongs )( 201.168 m furlong )
5.0292 m rod

= 160 rods,

(b) and that distance in chains to be d =

( 4.0 furlongs )( 201.168 m furlong )
20.117 m chain

= 40 chains.

5. Various geometric formulas are given in Appendix E. (a) Expressing the radius of the Earth as
R = ( 6.37 × 106 m )(10 ?3 km m ) = 6.37 × 103 km,

its circumference is s = 2π R = 2π (6.37 × 103 km) = 4.00 × 104 km. (b) The surface area of Earth is A = 4π R 2 = 4π ( 6.37 × 103 km ) = 5.10 × 108 km 2 .
2

(c) The volume of Earth is V =

4π 3 4π R = 6.37 × 103 km 3 3

(

)

3

= 1.08 × 1012 km3 .

17. None of the clocks advance by exactly 24 h in a 24-h period but this is not the most important criterion for judging their quality for measuring time intervals. What is important is that the clock advance by the same amount in each 24-h period. The clock reading can then easily be adjusted to give the correct interval. If the clock reading jumps around from one 24-h period to another, it cannot be corrected since it would impossible to tell what the correction should be. The following gives the corrections (in seconds) that must be applied to the reading on each clock for each 24-h period. The entries were determined by subtracting the clock reading at the end of the interval from the clock reading at the beginning. CLOCK A B C D Sun. -Mon. ?16 ?3 ?58 +67 Mon. -Tues. ?16 +5 ?58 +67 Tues. -Wed. ?15 ?10 ?58 +67 Wed. -Thurs. ?17 +5 ?58 +67 Thurs. -Fri. ?15 +6 ?58 +67 Fri. -Sat. ?15 ?7 ?58 +67

E

+70

+55

+2

+20

+10

+10

Clocks C and D are both good timekeepers in the sense that each is consistent in its daily drift (relative to WWF time); thus, C and D are easily made “perfect” with simple and predictable corrections. The correction for clock C is less than the correction for clock D, so we judge clock C to be the best and clock D to be the next best. The correction that must be applied to clock A is in the range from 15 s to 17s. For clock B it is the range from -5 s to +10 s, for clock E it is in the range from -70 s to -2 s. After C and D, A has the smallest range of correction, B has the next smallest range, and E has the greatest range. From best to worst, the ranking of the clocks is C, D, A, B, E. 21. We introduce the notion of density:

ρ=
and convert to SI units: 1 g = 1 × 10?3 kg.

m V

(a) For volume conversion, we find 1 cm3 = (1 × 10?2m)3 = 1 × 10?6m3. Thus, the density in kg/m3 is
?3 3 ? 1 g ? ? 10 kg ? ? cm ? 3 3 1 g cm = ? 3 ? ? ? ? ?6 3 ? = 1 × 10 kg m . ? cm ? ? g ? ? 10 m ? 3

Thus, the mass of a cubic meter of water is 1000 kg. (b) We divide the mass of the water by the time taken to drain it. The mass is found from M = ρV (the product of the volume of water and its density):
M = 5700 m 3

(

) (1 × 10

3

kg m 3 = 5.70 × 106 kg.

)

The time is t = (1


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[문서정보]

문서분량 : 266 Page
파일종류 : PDF 파일
자료제목 :
파일이름 : 솔루션 물리 일반물리학( cutnelljohnson-8th)-5245.pdf
키워드 : 북스힐,일반물리학,8판,cutnell,johnson,8th,솔루션



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