Which of the following correctly describes the result
charges move randomly
charges do not move
charges flow from low voltage areas to high
charges flows from high voltage areas to low

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

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?

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?