Which of the following would help you move a heavy object across a concrete floor?

Group of answer choices

foam rubber

steel rods

ball bearings

soap suds

oil

water

d) the number of neutrons plus the number of protons

b.transmitters send radio waves, and receivers capture radio waves.

no

sodium is solid at rt

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.