Physics For Scientists And Engineers 6E - part 322
Conversion Factors
continued
A.2
Appendix A
Work, Energy, Heat
J
ft $ lb
eV
1 joule
1
0.737 6
6.242 ! 10
18
1 foot-pound
1.356
1
8.464 ! 10
18
1 electron volt
1.602 ! 10
"
19
1.182 ! 10
"
19
1
1 calorie
4.186
3.087
2.613 ! 10
19
1 British thermal unit
1.055 ! 10
3
7.779 ! 10
2
6.585 ! 10
21
1 kilowatt hour
3.600 ! 10
6
2.655 ! 10
6
2.247 ! 10
25
cal
Btu
kWh
1 joule
0.238 9
9.481 ! 10
"
4
2.778 ! 10
"
7
1 foot-pound
0.323 9
1.285 ! 10
"
3
3.766 ! 10
"
7
1 electron volt
3.827 ! 10
"
20
1.519 ! 10
"
22
4.450 ! 10
"
26
1 calorie
1
3.968 ! 10
"
3
1.163 ! 10
"
6
1 British thermal unit
2.520 ! 10
2
1
2.930 ! 10
"
4
1 kilowatt hour
8.601 ! 10
5
3.413 ! 10
2
1
Pressure
Pa
atm
1 pascal
1
9.869 ! 10
"
6
1 atmosphere
1.013 ! 10
5
1
1 centimeter mercury
a
1.333 ! 10
3
1.316 ! 10
"
2
1 pound per square inch
6.895 ! 10
3
6.805 ! 10
"
2
1 pound per square foot
47.88
4.725 ! 10
"
4
cm Hg
lb/in.
2
lb/ft
2
1 pascal
7.501 ! 10
"
4
1.450 ! 10
"
4
2.089 ! 10
"
2
1 atmosphere
76
14.70
2.116 ! 10
3
1 centimeter mercury
a
1
0.194 3
27.85
1 pound per square inch
5.171
1
144
1 pound per square foot
3.591 ! 10
"
2
6.944 ! 10
"
3
1
a
At 0°C and at a location where the free-fall acceleration has its “standard” value, 9.806 65 m/s
2
.
Common
Unit in Terms of
Quantity
Symbol
Unit
a
Dimensions
b
Base SI Units
Acceleration
a
m/s
2
L/T
2
m/s
2
Amount of substance
n
MOLE
mol
Angle
%
,
&
radian (rad)
1
Angular acceleration
!
rad/s
2
T
"
2
s
"
2
Angular frequency
'
rad/s
T
"
1
s
"
1
Angular momentum
L
kg $ m
2
/s
ML
2
/T
kg $ m
2
/s
Angular velocity
"
rad/s
T
"
1
s
"
1
Area
A
m
2
L
2
m
2
Atomic number
Z
Symbols, Dimensions, and Units of Physical Quantities
Table A.2
Table A.1
continued
continued