James weighs 67 pounds on Earth. He has a mass of 30 kilograms. Which of the following is true? A.
James would weigh more on the Moon than he does on Earth.
B.
James would have a smaller mass on the Moon than he does on Earth.
C.
James would weigh less on the Moon than he does on Earth.
D.
James would have a greater mass on the Moon than he does on Earth.

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?