What is true about x-rays and microwaves?

a. x-rays have greater speed than microwaves.
b. x-rays have greater amplitude than microwaves.
c. x-rays have greater frequency than microwaves.
d. x-rays have greater wavelength than microwaves.

In order to place a satellite into orbit, it requires enough fuel to supply the necessary mechanical energy. into what types of mechanical energy does the fuel get transformed?

Asystematic approach to problem solving is called a (an)

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?