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HP 9g Graphing Calculator User Manual

Page 18

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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: