An electron is released from rest at the negative plate of a parallel plate capacitor. the charge per unit area on each plate is σ = 1.99 x 10^-7 c/m^2, and the plate separation is 1.69 x 10^-2 m. how fast is the electron moving just before it reaches the positive plate?

v = 1.15*10^{7} m/s

Explanation:

given data:

charge/ unit area

plate seperation = 1.69*10^{-2} m

we know that

electric field btwn the plates is

force acting on charge is F = q E

Work done by charge q id

this work done is converted into kinectic enerrgy

solving for v

v = 1.15*10^{7} m/s

c. rb

explanation:

the atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons.

e) none of the above answers are correct