HP 9g Graphing Calculator User Manual
Page 18
E-18
1. Enter the number you want to convert.
2. Press [ 2nd ] [ CONV ] to display the units menu. There are 7 menus,
covering distance, area, temperature, capacity, weight, energy, and
pressure.
3. Press
[ ] or [ ] to scroll through the list of units until the
appropriate units menu is shown, then press [
] .
4. Press
[ ] or [ ] to convert the number to the highlighted unit.
Physics Constants
You can use the following physics constants in your calculations:
Symbol Meaning
Value
c
Speed of light
299792458 m / s
g
Acceleration of gravity
9.80665 m.s
-2
G Gravitational
constant 6.6725985
×
10
-11
m
3
kg
-1
s
-2
Vm Molar volume of ideal gas
0.0224141 m
3
mol
-1
NA Avogadro’s
number
6.022136736
×
10
23
mol
-1
e Elementary
charge
1.602177335
×
10
-19
C
me Electron
mass
9.109389754
×
10
-31
kg
mp Proton
mass
1.67262311 × 10
-27
kg
h Planck’s
constant
6.62607554
×
10
-34
J.S
k Boltzmann’s
constant
1.38065812
×
10
-23
J.K
-1
IR
Gas constant
8.3145107 J / mol • k
IF
Faraday constant
96485.30929 C / mol
mn Neutron
constant
1.67492861
×
10
-27
kg
µ
Atomic mass constant
1.66054021 × 10
-27
kg
ε
0
Dielectric
permittivity
8.854187818
×
10
-12
F / m
µ
0
Magnetic
permittivity
1.256637061
×
10
-6
N A
-2
φ
0
Flux
quantum
2.067834616
×
10
-15
Wb
a
0
Bohr
radius
5.291772492
×
10
-11
m
µ
B Bohr
magneton
9.274015431
×
10
-24
J / T
µ
N Nuclear
magneton
5.050786617
×
10
-27
J / T
All physical constants in this manual are based on the 1986 CODATA
recommended values of the fundamental physical constants.
To insert a constant: