The gravitational potential energy that an object possesses is dependent on which of the following?

The mantle is made up of which structural zones?

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?

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?