If you lift a 3.2kg punkin to a height of 0.80 m, how much work do you do to lift the pumpkin?

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

Awalk up the phase change graph worksheet

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?