Question 3 When a police officer is trying to decide if a driver is speeding, what is his point of reference?
The ground
His car
The speed limit
All of these

it would be kevlar ^^

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.