Abilliard ball travels 20 cm in the positive direction, hits the cushion and rebounds in the negative direction, and finally comes to rest 6.0 cm behind its original position. what is the distance?

Explanation:

Given that

the ball travelled in positive direction x1 = 20 cm

the ball comes to stop at a distance = x2 = 6 cm

the distance travelled in -ve direction

x3 = x1 - x2 = 20- 6 = 14 cm

total distance co=vered by the given ball

x = x1 +x3 = 20+14 = 34 cm

x = 34 cm

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.

option number c is the right answer.