Halliday & Resnick Constants

What no physicist can be without...

Some Physical Constants

Speed of light

c

3.00E+008

m/s



1.86E+005

mi/s

Mass-energy relation

c^2

8.99E+016

J/kg



9.31E+002

MeV/u

Gravitational constant

G

6.67E-011

N m^2/kg^2



3.44E-008

lb ft^2 / slug^2

Universal gas constant

R

8.31

J/mol K

Permeability constant

\mu_0

1.26E-006

H/m

Permittivity constant

\epsilon_0

8.85E-012

F/m

Avagadro constant

N_0

6.02E+023

/mol

Boltzmann constant

k

1.38E-023

J/K



8.62E-005

eV/K

Planck constant

h

6.63E-034

J s



4.14E-015

eV s

Elementary charge

e

1.60E-019

C

Electron rest mass

m_e

9.11E-031

kg

Electron charge to mass ratio

e/m_e

1.76E+011

C/kg

Proton rest mass

m_p

1.67E-027

kg

Some Physical Properties

Air (dry, at 20 C and 1 atm)

Density

1.29

kg/m^3

Specific heat at constant pressure

1.00E+003

J / kg K


0.240

cal / g K

Ratio of specific heats (\gamma)

1.40





Speed of sound

343

m/s


1130

ft/s



Water (20 C and 1 atm)

Density

1.00E+003

kg/m^3


1.00

g/cm^3

Speed of sound

1460

m/s


4790

ft/s

Index of refraction (\lambda=589 nm)

1.33


Specific heat at constant pressure

4180

J/kg K


1.00

cal/g K

Heat of fusion (0 C)

3.33E+005

J/kg


79.7

cal/g

Heat of vaporization (100 C)

2.26E+006

J/kg


539

cal/g



The Earth



Mass

5.98E+024

kg

Mean radius

6.37E+006

m


3960

mi

Mean earth-sun distance

1.50E+008

km


9.30E+007

mi

Mean earth-moon distance

3.84E+005

km


2.39E+005

mi

Standard gravity

9.81

m/s^2


32.2

ft/s^2

Standard atmosphere

1.01E+005

Pa


14.7

lb/in^2


760

mm Hg


29.9

in Hg




Excerpted from Halliday, D. H. and Resnick, R. 1978. Physics. Wiley, New York.