A ball with a mass of 1.2 Kg rolls off of a table 0.45 m above the floor. assuming a complete transformation of gravitational potential energy into kinetic energy, calculate the velocity of the ball immediately before it hits the floor.

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

pretty sure it's false