A volleyball that has an initial momentum of −

1.0

 

kg

⋅

m

s

−1.0kg⋅

s

m



minus, 1, point, 0, start text, k, g, end text, dot, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction changes direction after a hand hits it with a force of

150

 

N

150N150, start text, N, end text for

0.01

 

seconds

0.01seconds0, point, 01, start text, s, e, c, o, n, d, s, end text.

A hand hits a volleyball. An arrow points to the right, in the directio

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?