You are using a constant force to accelerate a person on a sled. Suddenly another person jumps on doubling the mass you are pulling. What happens to
the acceleration? Describe and use numbers.

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

it takes about 30 days for it to break down

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 inner core.

good luck: )

klicker