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A228818 Decimal expansion of G/c^4 in s^2/(kg * m), where G is the gravitational constant and c = 299792458 m/s is the speed of light in vacuum. 6
8, 2, 6, 2 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

-44,1

COMMENTS

Also decimal expansion of 1/F_p where F_p is the Planck force, see A228817.

According to the law of universal gravitation, the attractive force (F) between two bodies is proportional to the product of their masses (m_1 and M2), and inversely proportional to the square of the distance (r) between them. The Newton's formula is F = G*m_1*m_2/r^2, where G is the constant of gravitation. Using both the Planck force (F_P) and the Einstein's formula E = m*c^2 the law of universal gravitation could be written as F = (G/c^4)*m_1*c^2*m_2*c^2/r^2 = E_1*E_2/(F_P*r^2), where both E_1 and E_2 are the energies of the bodies.

LINKS

Table of n, a(n) for n=-44..-41.

FORMULA

G/c^4 = A070058/A183001 = 1/A228817.

EXAMPLE

G/c^4 = 6.67384...*10^-11 [(m^3)/(kg*s^2)]/299792458^4 [m^4/s^4] = 8.262...*10^-45 [s^2/(kg*m)] = 0.000000000000000000000000000000000000000000008262... [s^2/(kg*m)].

CROSSREFS

Cf. A003678, A070058, A183001, A228817.

Sequence in context: A248300 A002994 A097408 * A195845 A093207 A178969

Adjacent sequences:  A228815 A228816 A228817 * A228819 A228820 A228821

KEYWORD

nonn,cons,hard,more

AUTHOR

Omar E. Pol, Sep 26 2013

EXTENSIONS

Name edited by Charles R Greathouse IV, Feb 12 2016

STATUS

approved

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Last modified February 22 01:36 EST 2019. Contains 320381 sequences. (Running on oeis4.)