[OSS.04H]The diagram below shows a star map. Source: http://nightsky. iol. nasa. gov/images/Suur Manipe

At which of these portions on the star map would Earth be most likely located?
Portion A
Portion B
Portion C
Portion D

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?

When the acceleration of a mass on a spring is zero, the velocity is at a (fill in the blank) . when the velocity of a mass on a spring is zero, the acceleration is at a (fill in the blank) .

How are elastic and inelastic collisions different? give two or more ways. your answer should have at least 2 sentences.