A95.0kg weightlifter pushes on a 800,000 kg wall for 400s but it does not move. how much work does he do on the wall?

this could be newton#'s law of cooling. the cooling curve is exponential

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.