Changes

The law itself states that each particle in the universe attracts another particle with a force directly [[proportion|proportional]] to the product of their masses and inversely proportional to the [[exponentiation|square]] of the distance between them<ref>Serway and Beichner, Physics for Scientists and Engineers, Fifth Edition</ref>, or:  

The law itself states that each particle in the universe attracts another particle with a force directly [[proportion|proportional]] to the product of their masses and inversely proportional to the [[exponentiation|square]] of the distance between them<ref>Serway and Beichner, Physics for Scientists and Engineers, Fifth Edition</ref>, or:  

:<math>F = \frac{m_1 m_2}{r^2}</math>

:<math>F = G \frac{m_1 m_2}{r^2}</math>

Where:

Where:

:<math>v = G \sqrt \frac{2 G M}{R}</math>

:<math>v = \sqrt \frac{2 G M}{R}</math>

Where:

Where: