A device to measure electrical potential energy difference, or voltage, is called a(n) a. ammeter.
b. voltmeter.
C. series meter.
d. Ohm meter.
Please select the best answer from the choices provided
ΦΑ
ОВ
C C
D

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?