Which form of energy is used in a wind-up toy robot? A- Chemical energy
B-Electrical energy
C-Heat energy
D-Mechanical Energy

The total amount of energy contained in an object

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?

How are positive ions different from neutral atoms