What is the peacocks displacement from 2 to 3 seconds

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field

The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2