HELP ME PLEASE !! The scatter plot shows the winning time in the men's 200 m dash event in six consecutive Olympics.
What was the approximate winning time in the year 1992?

A) 20.2s
B) 20s
C) 19.8s
D) 10s

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?