User manual

63
character of the constant. The UNITS menu has the
same constants as NAMES but the units of the
constant show in the menu.
Note: Displayed constant values are rounded. The
values used for calculations are given in the following
table.
Constant
Value used for
calculations
c
speed of light 299792458 meters per
second
g
gravitational
acceleration
9.80665 meters per
second
2
h
Planck’s
constant
6.62606896×10
M
34
Joule
seconds
NA
Avogadro’s
number
6.02214179×10
23
molecules per mole
R
ideal gas
constant
8.314472 Joules per mole
per Kelvin
m
e
electron mass 9.109381215×10
M
31
kilograms
m
p
proton mass 1.672621637×10
M
27
kilograms
m
n
neutron mass 1.674927211×10
M
27
kilograms
m
µ
muon mass 1.88353130×10
M
28
kilograms
30XPlusMV_OM.flpgl Page 63 Friday, November 14, 2014 1:57 PM