I am having a problem with my keyboard and it won't allow me to press the number five. I tried legit everything. I shut down my pc, took out the key, pressed num lock. I think the problem is I don't have a fn key because im using a k70 CORSAIR. Another problem is I can't press my f-five key any help?

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?