# Gravity Equations Formulas Calculator

## Science Physics Kepler's Third Law

Solving for satellite mean orbital radius.

Note:
G is the universal gravitational constant
G = 6.6726 x 10-11N-m2/kg2

#### Inputs:

 satellite orbit period (T) second century day decade hour millisecond minute week year planet mass (M) kilogram grain gram milligram pound slug ton long ton metric ton short

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#### Conversions:

 satellite orbit period (T) = 0 = 0 second planet mass (M) = 0 = 0 kilogram

#### Solution:

 satellite mean orbital radius (r) = HAS NOT BEEN CALCULATED

#### Other Units:

Change Equation
Select an equation to solve for a different unknown

Newton's law of gravity
 gravitational force exerted between two objects mass of object 1 mass of object 2 distance between the objects

Kepler's third law
 satellite orbit period satellite mean orbital radius planet mass

gravitational acceleration
 gravitational acceleration planet mass radius from the planet center

escape or critical speed
 escape or critical speed planet mass planet radius

References - Books:

Tipler, Paul A.. 1995. Physics For Scientists and Engineers. Worth Publishers. 3rd ed.

by Jimmy Raymond