In the human body oxygen is absorbed by the lungs and nutrients are absorbed by the small intestine in a single-cell organism this absorption directly involves

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

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?

If the area of a square has increased by a factor of 16, by how much has each side increased?