Think critically why would a field guide have common names as well as scientific names? !

What is the final velocity of the initial velocity of 25 and -50?

The energy equivalent of the rest mass of an electron is

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?