Physics Week 4

- I'm sure e=mc2 has affected me in many ways that I can't conceptualize. I know the equation explains how matter can be converted to energy and energy can be converted back to mass, which is how nuclear fusion works. From what I can gather, none of the stars or other masses in the universe would exist the way they do without the impact of this equation..so clearly I wouldn't exist either. 

-Compare the 4 forces:

- Strong Nuclear force: a force that acts between 2 or more protons and neutrons inside the nucleus of an atom. It is the fastest force and stores a large amount of energy. The strongest force present in nature. 
- Weak nuclear force: acts between leptons, is stronger than gravity, is involved in decay, most effective in short distance
- Electromagnetic-  is the combination of all electrical and magnetic forces, acts between particles, can attract or repulse.
- Gravity: gravity causes objects to curve towards each other in space-time, such as placing two objects on a stretched out sheet