A solenoid used to produce magnetic fields for research purposes is 1.7 m long, with an inner radius of 29 cm and 1300 turns of wire. When running, the solenoid produced a field of 1.1 T in the center.

low freq = 100 mhz

low wavelength =101.7m

length = 3x10^8/freq

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.

3. dark matter

empty space could also be a simple vacuum