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Model
M
(kg)
φ
(km/liter)
Contour
1310
10
.
2
Crown Victoria
1810
8
.
1
Escort
1175
11
.
9
Expedition
2360
5
.
5
Explorer
1960
6
.
8
F-150
2020
6
.
8
Ranger
1755
7
.
7
Taurus
1595
8
.
9
.
Accord
1470
9
8
.
CR-V
1430
10
2
Civic
1110
13
.
2
Passport
1785
7
.
7
7.
The relative density
ρ
of air was measuredat various altitudes
h
.
The results
were:
h
(km)
0
1
.
525
3
.
050
4
.
575
6
.
10
7
.
625
9
.
150
ρ
1
0
.
8617
0
.
7385
0
.
6292
0
.
5328
0
.
4481
0
.
3741
Use a quadraticleast-squares fittodetermine the relative air densityat
h
=
10
.
5
km. (This problemwas solvedbyinterpolationinProb. 20, ProblemSet 3.1.)
8.
Kinematic viscosity
µ
k
of water varies with temperature
T
as shown in the
table.Determine the cubicthat best fits the data, and use ittocompute
µ
k
at
10
◦
, 30
◦
, 60
◦
, and 90
◦
C. (This problemwas solvedinProb. 19,ProblemSet 3.1
by interpolation.)
T
=
T
(
◦
C)
0
21
.
1
37
.
8
54
.
4
71
.
1
87
.
8
100
µ
k
(10
−
3
m
2
/
s)
1
.
79
1
.
13
0
.
696
0
.
519
0
.
338
0
.
321
0
.
296
9.
Fit a straight line and a quadratictothedata
x
1
.
0
2
.
5
3
.
5
4
.
0
1
.
1
1
.
8
2
.
2
3
.
7
y
6
.
008
15
.
722
27
.
130
33
.
772
5
.
257
9
.
549
11
.
098
28
.
828
Which is abetterfit?
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