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Master Math: Essential Physics by David Allen Lawrence, Debra Anne Ross Lawrence

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Chapter 4NATURAL FORCES

4.1. Gravitation

4.2. Electrostatic Force

4.3. Strong Nuclear and Weak Forces

4.4. Key Concepts and Practice Problems

“Your theory is crazy, but it’s not crazy enough to be true.”

Attributed to Niels Bohr

“The chief aim of all investigations of the external world should be to discover the rational order and harmony which has been imposed on it by God and which He revealed to us in the language of mathematics.”

Attributed to Johannes Kepler

4.1. Gravitation

A force acts between any two objects or masses and depends on the inverse square of their distance from each other. This attracting force is described by the Law of Universal Gravitation.

• Johannes Kepler (1571–1630) and Isaac Newton (1642–1727) were both intrigued ...

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