Rutherford proposed that

a. the atom is mostly solid space
b. the electrons are spread through a solid, positive nucleus
c. the electrons are located around a nucleus
d. atoms are the smallest piece of matter

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Energy flows from the producer level to the level. is called