Design failure modes and effects analysis (dfmea) that you are responsible for returns a failure mode with the following ranking: severity (s) 9 occurrence (o) = 6 detection (d) 4 what is your first priority? a) increase detection of the failure mode b) investigate the causes of the failure mode c) reduce the occurrence of the failure mode d) eliminate or avoid the failure mode e) increase testing of the product f)cease design of the product

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?