Equations of impulse?
they all have to start with i= and there has to be three

I = F∆t

I = m∆v = ( mvf - mvi )

I = ∆p = ( final momentum - initial momentum )

Explanation: Impulse is the product of the average force and change in time. The product of mass and change in velocity also shows impulse. And finally, change in momentum ∆p is also equal to impulse.

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.