(a) What is the voltage output of a transformer used for rechargeable flashlight batteries if its primary has 500 turns, its secondary has 8 turns, and the input voltage is 124 V? V (b) What input current is required to produce a 4.00 A output? mA (c) What is the power input? W

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?