What is the resulting velocity of the launcher if the net force on the launcher is equal to the reaction force?

so easy. just google the electromagnetic waves and it’ll pop up.

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.

the right answer is 0.3 meters per second