1. what planet/star is the center of the solar system
2. shape of orbits,

3. based upon religion or science,

4. how many planets are in each model and their names, etc..

5. give lots of detail, you can always include more than necessary.

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?