A2 kilogram cat is resting on top of a bookshelf that is 1 meters high. what is the cat’s gravitational potential energy relative to the floor?

Given:

Mass of the cat: 2 Kg

Height from the ground: 1 meter

Now we know that

Potential energy= mgh

Where m is the mass of the cat

g is the acceleration due to gravity m/s^2

h is the height from the ground in meters

Substituting the given values in the above formula we get

Potential energy = 2 x 9.8 x 1= 19.6 J

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.